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1Majestic • Ashland ASH50 Installation Manual • 4059-900 • Rev B • 07/18

WOODBURNING FIREPLACE

Model(s):

Installation ManualInstallation and Fireplace Setup

WARNINGHOT SURFACES! Glass and other surfaces are hot during operation AND cool down.

Hot glass will cause burns.• DO NOT touch glass until it is cooled• NEVER allow children to touch glass• Keep children away

• CAREFULLY SUPERVISE children in same room as fireplace.

• Alert children and adults to hazards of high temperatures.

High temperatures may ignite clothing or other flammable materials.• Keep clothing, furniture, draperies and other flammable

materials away.

INSTALLER: Leave this manual with party responsible for use and operation.OWNER: Retain this manual for future reference.

ASH50

NOTICE: DO NOT discard this manual!

• DO NOTstoreorusegasolineorotherflam-mablevaporsandliquidsinthevicinityofthisor any other appliance.

• DO NOToverfire.Overfiringwillvoidyourwarranty.

• Comply with all minimum clearances to com-bustiblesasspecified.Failuretocomplymaycausehousefire.

WARNING: If the information in these instructions is not followed exactly, a fire or explosion may result causing property damage, personal injury, or death.

Installation and service of this appliance should beperformedby

This fireplace uses DuraChimney II pipe.2” CLEARANCE TO COMBUSTIBLES AND BUILDING INSULATION FROM CHIMNEY REQUIRED.

Fire Risk.

WARNING

For use with solid wood fuel only.Other fuels may overfire and generate poisonous gases (i.e. carbon monoxide).

WARNING: This product and the fuels used to operate this product (wood and wood pellets), and the products of combus-tion of such fuels, can expose you to chemi-cals including carbon black, which is known to the State of California to cause cancer and carbon monoxide, which is known to the State of California to cause birth defects or other reproductive harm. For more infor-mation go to: www.P65Warnings.ca.gov.

2 Majestic • Ashland ASH50 Installation Manual • 4059-900 • Rev B • 07/18

Safety Alert Key:• DANGER! Indicatesahazardoussituationwhich,ifnotavoidedwill result in death or serious injury.• WARNING!Indicatesahazardoussituationwhich,ifnotavoidedcould result in death or serious injury.• CAUTION! Indicatesahazardoussituationwhich,ifnotavoided,couldresultinminorormoderateinjury.• NOTICE:Indicatespracticeswhichmaycausedamagetothefireplaceortoproperty.

Table of Contents

1 Product Specific & Important Safety Information A.ApplianceCertification 4B.Non-CombustibleMaterials 4C.CombustibleMaterials 4

2 Getting Started A. Typical Fireplace System 5B. Design and Installation Considerations 6

1. Selecting Fireplace Locations 62. Locating Fireplace & Chimney 7

C. Tools and Supplies Needed 8D. Inspect Fireplace and Components 8E.FireplaceSystemRequirements 8

3 Framing and Clearances A. Fireplace Dimensions 9B. Clearances 10

MinimumClearancestoCombustibles 10C. Construct the Chase 11D. Frame the Fireplace 12E.SecureandLeveltheFireplace 13F. ProtectiveMetalHearthStrips 13G.OutsideAirKit 14

4 Chimney and Termination Installation A.ChimneyRequirements 15B. Clearances 17C. Installation Notes 17D.FrameOpenings 17E.CutRoofOpening 17F. Install Firestop 17G.AssembleChimneySections 18H.UsingOffsets/Returns 18I. OffsetElbowInstallation 19J. SupplementarySupport&Stabilizer 19K. Install Attic Insulation Shield 20L. Install Roof Radiation Shields 20M.AttachFlashing 20

Field-Constructed Chase Top Flashing 21N. Finish Top 22O.ChimneyTerminationRequirements 23

5 Shrouds A.ShroudRequirements 24B.HouseStyleShroud 25C.Arch/MailboxStyleShroud 26D. Pyramid Style Shroud 26

6 Finishing A.FinishingMaterial 27B.HearthExtension,BuildingandFinishing 29

1. Fireplace Installed Flush on the Floor andHearthExtensionRaisedto BottomofFireboxOpening 292.RaisedHearthExtensionandRaisedFireplace 303.FireplaceOpeningandHearthExtensionFlush withtheFloor 31

C.Non-CombustibleSealantMaterial 31D.Sidewalls/Surrounds 32E.MantelandWallProjections 32

7 Fireplace Setup A. InstallHearthMoldedBrickPanel 33B. InstallBackMoldedBrickPanel 33C.InstallSideMoldedBrickPanel 33D.InstallScreens 34E. InstallMortar(Optional) 34F.Grate 34G.GasLog/LighterProvision 35H.WoodBurningInserts 35

8 Reference Materials A.ChimneyComponents 36B.OptionalComponents 36


Customer:Lot/Address

Model (circle one): ASH50

YES IF NO, WHY?

WARNING! Risk of Fire or Explosion! Failure to install fireplace acording to these instructions can lead to a fire or explosion.

Verified that the chase is insulated and ventilated (Pg. 11)Verified clearances to combustibles. (Pg. 10)Fireplace is leveled and secured. (Pg. 13)

Hearth extension size/height decided. (Pg. 29)Outside air kit installed. (Pg. 14)

Chimney configuration complies with diagrams.

Firestops installed.

Roof flashing installed.

Chimney installed, locked and secured in place with proper clearance.

Terminations installed.

Installer:

Shrouds Section 5 (Pg. 24)Shrouds properly installed per instructions.

Dealer/Distributor Phone #Serial #:

Chimney Section 4 (Pg. 15)

Fireplace Install

Protective hearth strips installed per manual requirements. (Pg. 13)

Attic insulation shield installed.

ATTENTION INSTALLER:Follow this Standard Work Checklist

This standard work checklist is to be used by the installer in conjuction with, not instead of, the instructions contained in this installation manual.

Date Installed:Location of Fireplace:

4059-904 • Rev A • 4-09-18

Comments communicated to party responsible

Combustible materials not installed in non-combustible areas.Verified all clearances meet installation manual requirements.Mantels and wall projections comply with installation manual requirements.

All packaging and protective materials removed.Fireplace Setup Section 7 (Pg. 33)

__________________________ by ______________________on ________

Molded brick panels installed correctly.Optional doors properly installed.

• Photographing the installation and copying this checklist for your file.• That this checklist remain visible at all times on the fireplace until the installation is complete.

Hearth & Home Technologies recommends the following:

Grate properly installedFirescreen installed properly.

(Builder/Gen. Contractor) (Installer) (Date)

Comments: Further description of the issues, who is responsible (Installer/Builder/Other Trades, etc.) and corrective action needed:_________________________________________________________________________________________________

Manual bag and all of its contents are removed from the fireplace and given to the party responsible for use and operation.

________________________________________________________________________________________________________________________________________________________________________________________________________________

Hearth extension installed per manual requirements.

Finishing Section 6 (Pg. 27)


WARNING! Risk of Fire! Hearth & Home Technologies disclaims any responsibility for, and the warranty and agency listing will be voided by the following actions.DO NOT:• installoroperatedamagedfireplace• modifyfireplace• install other than as instructed by Hearth & Home

Technologies• operate the fireplace without fully assembling all

components• overfire• install any component not approved by Hearth & Home

Technologies• install parts or components not Listed or approvedImproper installation, adjustment, alteration, service or maintenance can cause injury or property damage. For assistance or additional information, consult a qualifiedinstaller, service agency or your dealer.

B. Non-Combustible Materials• Materialswhichwillnot igniteandburn,composedof

anycombinationofthefollowing:- Steel - Iron- Brick - Tile- Concrete - Slate- Glass - Plasters

• MaterialsreportedaspassingASTM E 136, Standard Test Method for Behavior of Metals, in a Vertical Tube Furnace at 750° C

C. Combustible Materials• Materialsmadeoforsurfacedwithanyofthefollowing

materials:- Wood - Compressedpaper- Plantfibers - Plastic- Plywood/OSB - Sheetrock(drywall)

• Anymaterialthatcanigniteandburn;flameproofedornot, plastered or un-plastered

1 Product Specific & Important Safety Information

A. Appliance CertificationThisfireplacesystemhasbeentestedandlistedinac-cordancewithUL127standardsbyUnderwritersLabo-ratories Inc. for installation and operation in the United States.

ThisfireplacemaybeinstalledinsleepingroomsEX-CEPT in manufactured homes. If installed with a gas log set,provisionsfortheNationalFuelGasCodemustbemet.

Thisfireplacehasbeentestedandlistedforusewiththeoptionalcomponentsspecifiedinthismanual.Theseoptionalcomponentsmaybepurchasedseparatelyandinstalledatalaterdate.Theoutsideairkitsmustbeinstalledatthetimeoffireplaceinstallation.


2 Getting Started

Additional lateralsupport for chimneyabove roof (or enclosedin chase) if needed

Ceiling firestopon floor of attic

Support strapson rafter supportschimney (not shown)

Termination cap

Chimney penetrates roofpreferably without affectingroof rafters

Framing headed offin ceiling joists

Enclosed space aboveand around fireplace

Mantel and surround

Decorative facingand trim

Hearth extension

Factory-built fireplaceProtective metalhearth strip(s)

Combustibleframing/headeron top ofV-shaped standoffs(spacers)

Chimney system

Attic insulation shield must be usedhere to keep insulation away from chimney if attic is insulated

Attic Shield Collar

Storm Collar

Outside Air(both sides)

Chase Top Flashing

(4) Roof Radiation Shields

A. Typical Fireplace System

Figure 2.1 Typical Fireplace System


A*

F

D

BC

1/2 in. (13 mm) all configurations

1-1/2 in. min. air space from fireplace to combustible materials.1/2 in. min. air space at nailing flanges.

Note:

In an exterior chase or projecting into a garage

Across a corner

As a room divider Along a wall

92 in.(2337 mm)

G

B

E

48 in.(1219 mm)MINIMUM

24 in. (610 mm)from fireplace opening to

any perpendicular wall

A

B

G

G

B

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Model # A B C D E F Gin. 85 7/8 61 7/8 103 1/4 51 5/8 25 1/4 73 28 1/2

mm 2181 1572 2623 1311 641 1854 724ASH50

* 12 in. (305 mm) extra space included for each outside air connection. If outside air duct has no bend, this dimension may be reduced as long as minimum clearances are met.

Figure 2.2 Fireplace Locations

NOTICE:• Illustrationsandphotosreflecttypicalinstallationsand

are FOR DESIGN PURPOSES ONLY.• Illustrations/diagrams are not drawn to scale.• Actual installation/appearance may vary due to individual

design preference.• Hearth & Home Technologies reserves the right to alter

its products.

NOTICE: In addition to these framing dimensions, also reference the following section:

• Framing and Clearances (Section 3).

NOTICE: A minimum 1-1/2 in. air clearance at the back and sides of the fireplace assembly must be main-tained.Chimney sections at any level require a 2 in. minimum air space clearance between the framing and chimney sections.

B. Design and Installation Considerations

NOTICE: Check building codes prior to installation.

• InstallationMUSTcomplywithlocal,regional,stateandnational codes and regulations.

• Consult insurancecarrier, localbuildinginspector,fireofficialsorauthoritieshavingjurisdictionoverrestrictions,installation inspection and permits.

• Before installing,determinethefollowing:- Wherethefireplaceistobeinstalled.- Theventsystemconfigurationtobeused.- Gas supply piping.- Electrical wiring.- Framingandfinishingdetails.- Whetheroptionalaccessories-devicessuchasa

fan, wall switch or remote control - are desired

1. Selecting Fireplace LocationsThisfireplacemaybeusedasaroomdivider,installedalongawall,acrossacornerorusedinanexteriorchase.See Figure 2.2.

Locatingthefireplaceinabasementshouldbeavoided.Locatingnearfrequentlyopeneddoors,centralheatoutletsorreturns,orotherlocationsofconsiderableairmovementcanaffecttheperformance.

Considerationshouldbegiventothesefactorsbeforedeciding on a location.


2. Locating Fireplace & Chimney

Locationofthefireplaceandchimneywillaffectperfor-mance.

• Installwithinthewarmairspaceenclosedbythebuildingenvelope.Thishelpstoproducemoredraft,especiallyduringlightinganddie-downofthefire.

• Installingthefireplaceinabasementisnotrecommended.• Penetrate the highest part of the roof. This minimizes

the effects of wind loading.• Locate termination cap away from trees, adjacent

structures,unevenrooflinesandotherobstructions.• Minimizetheuseofchimneyoffsets.• Considerthefireplacelocationrelativetofloorandceiling

and attic joists.• Takeintoconsiderationtheterminationrequirementsin

Section4.

Marginal Location:• Below peak

Location NOT recommended:• Not the highest point of the roof• Wind loading possible

Multi-level Roofs

Windward

Leeward

Recommended Location:• Above peak

Recommended:• Insulated exterior chase

in cooler climates

Recommended Location:• Above peak• Inside heated space

Location NOT recommended:• Too close to tree• Below adjacent structure• Lower roof line• Avoid outside wall

Marginal Location:• Wind loading possible

Not recommended in basement due to high negative pressure concerns that effect draftFigure 2.3 Recommended Chimney Locations

• Installtheoutsideairkitwiththeintakefacingprevailingwinds during the heating season.

• Ensure adequate outdoor air for all combustionappliancesandexhaustequipment.

• Ensurefurnaceandairconditioningreturnventsarenotlocatedintheimmediatevicinityofthefireplace.

• Avoid installingthefireplaceneardoors,walkwaysorsmall isolated spaces.

• Recessedlightingshouldbea“sealedcan”design.• Attic hatches weather stripped or sealed.• Atticmountedductworkandairhandlerjointsandseams

taped or sealed.


C. Tools and Supplies NeededBeforebeginningtheinstallationbesurethefollowingtoolsandbuildingsuppliesareavailable:

Reciprocating saw Framing material

Pliers Non-combustiblesealant

Hammer Gloves

Phillipsscrewdriver Framingsquare

Flatbladescrewdriver Electricdrillandbits

Plumbline Safetyglasses

Level Tapemeasure

1/2-3/4in.length,#6or#8self-drillingscrews

Misc.screwsandnails

D. Inspect Fireplace and Components

WARNING! Risk of Fire and/or Explosion! Damaged parts could impair safe operation. DO NOT install dam-aged,incompleteorsubstitutecomponents.Keepfire-place dry.

• Removefireplaceandcomponentsfrompackagingandinspect for damage.

• Vent system components and doors are shipped in separatepackages.

• Report to your dealer any parts damaged in shipment.• Read all the instructions before starting the

installation. Follow these instructions carefully during the installation to ensure maximum safety and benefit.

E. Fireplace System RequirementsTheHeatilatorfireplacesystemrequirementsconsistofthefollowing:

• Fireplace- Molded brick panels (hearth panel Includedwith

fireplace,sideandbackpanelssoldseparately)- Firescreen(includedwithfireplace)- HearthExtension(soldseparately)- Grate(includedwithfireplace)

• OutsideAirSystem- AirInletHood(includedwithfireplace)- Flex(required,soldseparately)

• Chimney System- AtticInsulationShield(soldseparately)- Chimneyterminationcap(soldseparately)

• Non-combustiblefinishmaterial


3 Framing and Clearances

A. Fireplace Dimensions

16 1/8 in.408 mm

Gas LineKnockout

11 1/8 in.282 mm

6 7/8 in.175 mm

5 in.129 mm

50 in.1270 mm

60 7/8 in.1546 mm

3 3/4 in.97 mm

38 in.965 mm

54 in.1372 mm

74 1/8 in.1883 mm

70 3/4 in.1797 mm

16 1/8 in.408 mm

11 1/8 in.282 mm

6 7/8 in.175 mm

5 in.129 mm

45 1/8 in.1146 mm

11 in.281 mm

27 1/2 in.699 mm

74° TYP.

Gas LineKnockout

22 1/2 in.572 mm

61 7/8 in.1572 mm

5 1/2 in.140 mm

Outside AirOutside

Air

Figure 3.1 Fireplace Dimensions


1/2 in. air spaceestablished by

spacersChase TopFlashing

RoofRadiation Shield

1/2 in.Air Space

Spacers furnished withcomplete Chase Top Flashing

(May be field-fabricated)

1/2

Storm collar mustbe installed 1 in.

off chase top

CHASE TOP CLEARANCES

1 1/2” Ventilation Openingaround Chimney Pipe

(insulation)

0 in. to levelof standoffs

Attic Insulation Shield

(ceiling)

(roof)

(attic)

(ceiling)

Attic Shield Collar

Ceiling Firestop

Storm Collar

Chase Top Flashing

1-1/2 in. (38 mm) to back & sides

of appliance(except at nailing flanges where it is

1/2 in. [13 mm])

Must have 2 in. (51 mm)minimum clearance

to any combustible materialsincluding header

0 in.to floor

2 in. (51 mm) min.

Shaded areasrepresent

2 in. (51 mm) min.air space clearance

required around pipe

Com

bust

ible

Obj

ect

48 in.1219 mm

1 in.

B. ClearancesWARNING! Risk of Fire!

You must comply with all minimum air space clearances tocombustiblesasspecifiedinFigure3.2.DO NOT pack required air spaces with insulation or other materials. Framing or finishingmaterial used on the front of, or infrontof,thefireplacecloserthantheminimumslistedmustbe constructed entirely of non-combustible materials (i.e., steel studs, concrete board, etc.). Failure to comply may causefire.

Figure 3.2 Clearances to Combustible Materials

Minimum Clearances to Combustibles

WITHIN ENCLOSURE AREAFireplacetobackwall 1-1/2in.(38mm)Fireplace to sidewall 1-1/2in.(38mm)Top standoffs to header 0in.(0mm)Door opening to sidewall 24in.(610mm)MANTELMantelminimumheight 63-3/4in.(1619mm)Maximummanteldepth 12in.(305mm)


C. Construct the ChaseAchaseisaverticalboxlikestructurebuilttoenclosethefireplaceand/oritsventsystem.Verticalchimneysthatrunontheoutsideofabuildingmustbeinstalledinsideachase.

Incoldclimates,Hearth&HomeTechnologiesrecom-mendsthatthechasebewellinsulatedusingbatttypeinsulationbetweenthejoists.

Constructionofthechasemayvarywiththetypeofbuild-ing.Theseinstructionsarenotsubstitutesfortherequire-mentsoflocalbuildingcodes.LocalbuildingcodesMUSTbechecked.

Chasesshouldbeconstructedinthemannerofalloutsidewallsofthehometopreventcoldairdraftingproblems.Thechaseshouldnotbreaktheoutsidebuildingenvelopeinanymanner.Allouterwallsneedtobeinsulated.

Buildingcodesrequirefalseceilingandceilingfirestops/atticshieldsateachfloorofthechaseorevery10ft(3048mm)ofclearspacetocontrolspreadoffire.

Walls,ceiling,baseplateandcantileverflooratthefirstlevelofthechaseshouldbeinsulated(seeFigure3.3.)Vaporandairinfiltrationbarriersshouldbeinstalledinthechase as per regional codes for the rest of the home. Ad-ditionally,Hearth&HomeTechnologiesrecommendsthattheinsidesurfacesbedrywalledandtaped(ortheuseofanequivalentmethod)formaximumairtightness.

Holesandotheropeningsshouldbecaulkedwithhightemperaturecaulkorstuffedwithunfacedfiberglassinsulation.

Ceiling Firestop

Metal Chase Top

Round Termination Cap

False Ceiling

Insulation in the outside walls of the chase

Attic Insulation

Shield

Chimney

Ceiling Firestop

Tabs

False Ceiling False Ceiling Insulation Insulation

Storm Collar

Figure 3.3 Chase Assembly

1 2 3

All outside walls should be insulated.

Figure 3.4 Chase Constructions

1. Fireplaceandchimneyenclosedinanexteriorchase. 2. Chimneyoffsetthroughexteriorwallandenclosedinchase. 3. Chaseconstructedonroof.• The chase is constructed using framing materials much

thesameasthewallsinyourhome.Avarietyofsidingmaterialsmaybeused includingbrick, stone, veneerbrick,orstandardsidingmaterials.

• In constructing the chase, several factorsmust beconsidered:- Maintain a 2 in. (51mm) air space around the

chimney.- The chase top must be constructed of non-

combustiblematerial.- Incoldclimates,afirestopspacerandatticinsulation

shieldshouldbeinstalledinaninsulatedfalseceilingat the 8 ft. (2438mm) level above the fireplaceassembly.Thisreducesheatlossthroughthechase.

- Incoldclimates, thewallsof thechaseshouldbeinsulatedtothelevelofthefalseceilingasshowninFigure3.3.Thiswillhelpreduceheatlossfromthehomearoundthefireplace.

ThreeexamplesofchaseapplicationsareshowninFig-ure3.4.

WARNING! You must install false ceilings and ceil-ing firestops at each floor of the chase or every 10 ft (3.05 m) to control spread of fire.

WARNING! Risk of Fire! DO NOT sealareabetweenfirestop opening and chimney pipe except where they enter the attic or leave the warm air envelope of the home (use 600° F sealant).

WARNING! Risk of Fire! You must maintain a minimum 2 in. (51 mm) air space clearance to insulation and oth-er materials surrounding the chimney system.• Insulationandothermaterialsmustbefirmlysecuredto

prevent accidental contact with chimney system.• The chase must be properly blocked to prevent blown

insulation or other combustibles from entering and makingcontactwithfireplaceorchimney.

• Failure to prevent contact between insulation or other materials and chimney system may cause overheating andfire.


WARNING! Risk of Fire! You must comply with all minimum air space clearances to combustibles. DO NOT pack required air spaces with insulation or other materi-als.

WARNING! Risk of Fire! Comply with all minimum clear-ancesspecified.• A minimum 1-1/2 in. (38 mm) air clearance must be

maintained at the back and sides of the fireplace assembly.

• Chimney sections at any level require a 2 in. (51 mm) minimum air space clearance between the framing and chimney section.

CAUTION! Risk of Cuts/Abrasions. Wear protective gloves and safety glasses during installation. Sheet metal edges are sharp.

B

C

A

21 in. (533 mm)framing.

Note: Framing must be extended straight up 84 in.(2134 mm) from the base of the fireplace.

D

D = extra space needed for outside air connection. If outside air duct has no bend, this dimension may be reduced as long as minimum clearances are met.

DA B * C ** D

in. 61 7/8 28 1/2 74 1/2 12mm 1572 724 1892 305

Model #

** Adjust header height for raised floor under fireplace.

ASH50

* If interior of chase will be drywalled, add the thickness to this measurement.

1/2 in.(13 mm)

Fireplace must be set out 1/2 in. (13 mm) in front of the face of the framing material.

Figure 3.5 Framing the Fireplace

D. Frame the Fireplace

NOTICE: Hearth extension designmust be determinedbeforeinstallationoffireplace.

Ifthefireplaceisplacedonthefloor,themaximumheightofafinishedraisedhearthis3-3/4”,ifyouwantahigherraisedhearththefireplacemustbeplacedonaplatform.

Figure3.5showsatypicalframing(using2x4lumber)ofthefireplace,assumingcombustiblematerialsareused.Allrequiredclearancestocombustiblesaroundthefire-placemustbeadheredto.SeeFigure3.2.Anyframingacrossthetopofthefireplacemustbeabovethelevelofthetopstandoffs.(Norecessabovestandoffs.)

The finishedcavitydepthmustbenolessthan28-1/2in.(673mm)fromthefinishedbackwalltotheoutsideoffrontwallframing.Framingmustextendstraightupallthewayto the ceiling.


E. Secure and Level the FireplaceThisfireplacemaybeplacedoneitheracombustibleornoncombustiblecontinuousflatsurface.Slidethefireplaceintoposition.Besuretoprovidetheminimum1-1/2in.airclearanceatthesidesandbackofthefireplace.

Thefireplaceshouldbepositionedsothefaceofthenon-combustiblematerialonthefireplacewillbeflushwiththeface of the drywall on the walls.

Levelthefireplaceandshimasnecessary.

1 in. (25 mm) overlap

Protective metal strips are placed 2 in. (51 mm) under the front of the fireplace and must extend beyond the front and sides of fireplace opening by 2 in. (51 mm).

Raised Platform

Floor

2 in.(51 mm)

1 in. (25 mm) min.overlap

2 in.(51 mm)

Top piece must overlapbottom piece

Figure 3.7 Protect the Front of an Elevated Platform

F. Protective Metal Hearth Strips

Figure 3.6 Position the Protective Metal Hearth Strips

• Locatethetwoprotectivemetalhearthstripsmeasuringapproximately26in.x4in.(660mmx102mm)includedwiththisfireplace.

• Slideeachmetalstrip2in.(51mm)underfrontedgeoffireplace.

• Overlapstripsinthemiddleoffireplaceopeningby1in. (25mm)minimum.

• Metal stripsmust extendbeyond the front and sidesof the fireplace opening by at least 2 in. (51mm),Figure3.6).

• Protectthefrontofaplatformelevatedabovethehearthextensionwithmetalstrips(notincludedwithfireplace)per Figure 3.7. See Section 6 for hearth extensioninstructions.

WARNING! Risk of Fire! Protective metal hearth strips MUST be installed on combustible surfaces. DO NOT cover metal strips with combustible materials. Sparksorembersmayigniteflooring.

WARNING! Risk of fire! High temperatures, sparks, embers or other burning material falling from the fireplacemayigniteflooringorconcealedcombustiblesurfaces.• Protective metal hearth strips MUST be installed.• Hearth extensions MUST be installed exactly as

specified.

WARNING! Risk of Fire! Prevent contact with sagging, loose insulation. • DO NOT install against vapor barriers or exposed

insulation.• Secure insulation and vapor barriers.• Provide minimum air space clearances at the sides and

backofthefireplaceassembly.


3 ft min. fromtop of uppermost chimney section to air inlet.

G. Outside Air KitOutsideairkitsmustbeusedforcombustionandtopro-videcoolingairtopreventoverheating.Hearth&HomeTechnologies recommends you utilize the shortest duct runtooptimizetheperformanceoftheoutsideairkit.Theoutsideairinlethoodsshouldbepositionedinamannerthatwillnotallowsnow,leaves,etc.toblocktheinlet.Insomeinstallationstheairductmayneedtoberunverti-cally.Insuchaninstallation,a3ft(914mm)heightdiffer-encemustbemaintainedfromthetopoftheuppermostchimneysectiontotheoutsidecombustionairinlethood.

RefertoFigures3.8and3.9whenplacingtheoutsideairinlet hood.

WARNING! Risk of Fire! The outside air kits are installed onthebothsidesofthefireplacetopreventoverheatingandfire.• Cuta6in.(152mm)holeinoutsidewalltoaccommodate

air piping. • Use6in.(152mm)flex(notsupplied)todirectlyconnect

outsideairtofireplaceintake.Insulatethepipetopreventfrost condensation.

• Use the supplied outside air inlet hoods.• Seal between thewall and the pipewith silicone to

preventmoisturepenetrationandairleaks.• Sealbetweentheoutsideairinlethoodsandthehouse

withsiliconetopreventairinfiltration.

CAUTION! Risk of Cuts/Abrasions. Wear protective gloves and safety glasses during installation. Sheet metal edges are sharp.

CAUTION! Risk of Fire or Asphyxiation! DO NOT draw outsidecombustionairfromwall,floororceilingcavity,orenclosed spaces such as an attic or garage. • DO NOT place outside air inlet hood close to exhaust

vents or chimneys. Fumes or odor could be drawn into theroomthroughthefireplace.

• Locate outside air inlet hood to prevent blockage from leaves, snow/ice, or other debris. Blockages could cause combustion air starvation.

Figure 3.8 Outside Air Inlet Locations

Outlet placed higher than 3 ft

below the termination cap

Attic space

Garage or combustible

liquids storage Outlet blocked by snow, leaves, etc.

Clear area outside

house or in ventilated

crawl space

YES

NO NO

NO

NO

Factory-built fireplace

• Use UL181 Class 1 or Class 0 rigid or flexible ducting. • Install with short run or mainly straight duct, except small

dip for cold air trap which will help prevent flow of cold air.• Secure flex duct with screws or wire ties.

Figure 3.9 Outside Air Installation

Outside air in-stalled on both sides (right side not shown)

NOTICE: The fireplace provides some outside air for combustion. Other methods may be necessary if more air is required.


4 Chimney and Termination Installation

NOTICE: Chimney performance may vary.

• Trees, buildings, roof lines and wind conditions affect performance.

• Chimney height may need adjustment if smoking or overdraft occurs.

A. Chimney RequirementsMeasureverticaldistancesfromthebaseofthefireplace.

WARNING! Risk of Fire! You must maintain 2 in. (51 mm) air space clearance to insulation and other com-bustible materials around the chimney system. Failure to do so may cause overheating and fire.

Feet Meters• Minimumoverallstraightheight 18 5.49

• Minimumheightwithoffset/return 18.5 5.64

• Maximumheight 50 15.24

• Maximumchimneylengthbetweenanoffsetand return

20 6.10

• Maximumdistancebetweenchimneystabilizers

25 7.62

• Maximumunsupportedchimneylengthbetweentheoffsetandreturn

6 1.83

• Maximumunsupportedchimneyheightabovethefireplace

25 7.62

• Maximumunsupportedchimneyaboveroof 6 1.83

• Minimumheightwithdoubleoffset/return 22.5 6.86

Height of Chimney Components in. mm

Stabilizer

14DCA-ST

Firestop

14DCA-FS

Elbows

14DCA-E15-15°Elbow

14DCA-E30-30°Elbow

Miscellaneous

14DCA-ES-ElbowStrap

14DCA-SS-SupplementarySupport

14DCA-IS-InsulationShield

14DCA-RRS-RoofRadiationShield

14DCA-CTF-ChaseTopFlashing

14DCA-CTC-ChaseTopCollar

14DCA-VC-ChimneyCap

14DCA-SC-StormCollar

14DCA-WS-WallStrap

Chimney Sections*

14DCA-12 101/2 267

14DCA-18 161/2 419

14DCA-36 341/2 876

14DCA-48 461/2 1181

*Dimensionsreflecteffectiveheight.

Table 4.1


(4) Roof Radiation Shields

Chimney Section

Chimney Section

Attic InsulationShield & Collar

Square Frame

Firestop

Square Frame

Firestop

Chimney Section

74 1/8 in.(1883 mm)EffectiveHeight

Termination Cap

Storm Collar

Chase Top Flashing

Figure 4.1

Determine the chimney components needed to complete yourparticularinstallation:

• Measure the total vertical height of the fireplaceinstallationfromthebaseofthefireplaceassemblytotheapproximatelocationofthebottomoftheterminationcap.

• Subtracttheeffectiveheightofthefireplaceassembly(seeFigure4.1)fromthetotalverticalheighttodeterminetheoverallheightofthechimneyinstallation.

• Create a schematic for your application similar to Figure 4.1showingcomponentsrequired(referringtoTable4.1).

• Installaceilingfirestopwheneverthechimneypenetratesafloor/ceiling.

NOTICE: A maximum of two offset and return may be used.

CAUTION! Risk of Fire and/or Asphyxiation! DO NOT connectthisfireplacetoachimneyflueservicinganother appliance. Do NOT connect to any air distribu-tion duct or system. These actions could cause over-heating/fire in thechimneyflue,orreleaseofexhaustfumes into the living areas.


A MAJOR CAUSE OF VENT RELATED FIRES IS FAIL-URE TO MAINTAIN REQUIRED CLEARANCES (AIR SPACES) TO COMBUSTIBLE MATERIALS. IT IS OF THE UTMOST IMPORTANCE THAT DURACHIMNEY II BE INSTALLED ONLY IN ACCORDANCE WITH THESE INSTRUCTIONS.

B. ClearancesAlwaysallowatleasta2-inchclearancebetweenDura-ChimneyIIPipeandanycombustiblematerials.

• Neverfillanyrequiredclearancespacewithinsulationor any other materials.

• Combustible materials include lumber, plywood,sheetrock,plasterandlath,furniture,curtains,electricalwiring,andbuildinginsulation.

C. Installation NotesProper planning for your DuraChimney II installation will resultingreatersafety,efficiency,andconvenience,aswellassavingtimeandmoney.Youmust use only autho-rized DuraChimney II parts to maintain a listed chimney system. Do notmixpartsortrytomatchwithotherprod-uctsoruseimprovisedsolutions.

• Do notinstalldamagedormodifiedparts.• Practice good workmanship. Sloppy work could

jeopardize your chimney’s safety. • Keep electrical wiring and building insulation away

from all chimneys. • When deciding the location of your chimney, try to

avoidmodificationstoroofbeamsandotherstructuralcomponentsofthebuilding.

Ifyouhaveanyquestions,contacteitheryourdealerorSimpson Dura-Vent directly.

D. Frame Openings• Fromtheceiling,dropaplumbbobtothecenterofthe

fireplace’sflueoutletandmarkthiscenterpointontheceiling.

• Markappropriatecuttinglinesaroundthecenterpoint.Cutasquareholeintheceiling.Framealevel,square,21in.x21in. (533mmx533mm)openingcenteredovertheholethatyouhavecut.

• Frameopeningsateachfloorlevelabovethefireplace(Figure4.1).Theseopeningsaretoholdthefirestopandattic insulation shield.

• Locateeachopeningbydroppingaplumbbobtothefourcornersoftheopeningbelow.

• Maintain theminimum 2-inch clearance/air space.Maintain theminimumclearancesanddimensionsasspecifiedinTable4.1.

E. Cut Roof OpeningDetermineandcutanopeningintheroofdirectlyabovetheopeningbelow,andatleast4-incheslargerthanthechimney’soutsidediametertoprovideatleasta2-inchclearance all around the chimney.

• The chimney mustbecenteredwithinthisopeningandmaintaintheminimum2-inchclearancetocombustibles.

F. Install FirestopAfirestopisrequiredoneachfloorpenetrationinmultisto-ryinstallation.BuildingCodesrequireafirestopateveryfloor/ceilinglevel,includingwherethechimneypenetratesintotheattic.Figure4.1showsatypical2-storyinstalla-tion with an attic.

Note:afirestopisnot installed where the chimney pen-etrates through the roof.

• Thefirestopisinstalledontheundersideoftheceiling/floorframing(Figure4.2).

• Useaminimumofone8pennynailorone1-1/4”woodscrew per corner.

Framing

Figure 4.2


G. Assemble Chimney Sections• Attach the first chimney sectionor offset onto

thetopofthefireplace(Figure4.3).Sheetmetalscrewsarerequiredtoconnectchimneysectionto the fireplace starter collar.Continue to addadditional sections of chimney as needed.

• Use awall strap every eight feet of chimneyheight.

• For each additional chimney section use four of thesheetmetalscrewsprovided tomakeasecureconnectionbetweenthechimneysections(Figure4.4).Donotpenetratetheinnerlinerofthe chimney.

Figure 4.3

Figure 4.4

H. Using Offsets/Returns• Useanoffset/returntobypassoverheadobstructions.• Anoffsetandreturncanbeusedasasingleentityorseparated

bychimneysection(s).WARNING! Risk of Fire! DO NOT use offset/returns greater than 30 ft. Chimney draft will be restricted and could cause overheating andfire.• Measure the shift required to avoid theoverheadobstruction

(Offset,Figure4.5).• FindtheappropriateoffsetdimensionlistedinTable4.2.• The rise (seeFigure4.5)coincidingwith theoffsetdimension

measurement in Table 4.2 represents the required verticalclearanceneededtocompletetheoffset/return.

Table 8.2

Elbow Angle from

Vertical

Chimney Length

Between Elbows

Offset Inches

Rise Inches

Offset Millimeters

Rise Millimeters

15° 0 25/8 215/8 67 549

15° 12in./305 mm 51/2 321/4 140 819

15° 18in./457 mm 71/8 38 181 965

15° 36in./914 mm 113/4 553/8 298 1407

15° 48in./1219 mm 147/8 67 378 1702

30° 0 61/4 241/2 159 622

30° 12in./305 mm 113/4 34 298 864

30° 18in./457 mm 143/4 391/4 375 997

30° 36in./914 mm 233/4 547/8 603 1394

30° 48in./1219 mm 293/4 651/4 756 1657

RISE

OFFSET

Figure 4.5


Elbow Strap

30° or 15°Elbow

Figure 4.6

Elbow Strap

1 perSection

Figure 4.7

I. Offset Elbow InstallationA30°Elbow(measuredfromthevertical)isthelargestthatcanbeusedinanoffset.A30°ElbowmaynotbecombinedwithanotherElbowtomakeasteeperoffset(e.g.two30°Elbowsarenotallowedtobeputtogethertoforma60°elbow.).AvoidElbowsifpossible.Atotallyver-ticalchimneyismoreefficient.WhenElbowsareneces-sarytoavoidobstructionssuchasrafters,ridgepoles,orjoists,youareonlyallowedtouse2pairofElbowsinanyonechimneysystem.Horizontalrunsofchimneyviolatebuildingcodeandarenotallowed.

• Attachelbows Attach elbow to chimney section or other elbow by

mating the male and female ends with each other and using four sheetmetal screws provided.Attach oneelbowtothechimneysectionbelow,andalignitfortheoffset.Determinetherequiredoffsetlengthandattachanappropriatelength(orlengths)ofchimneysection(s)abovetheelbow.Attachthesecondelbowabovethechimneysectiontocompletetheoffset(Figure4.6).

• Secure offset Useanelbowstrap to secure theoffset.Secure the

elbowstrap’sbandtochimneyaroundtheupperportionofthetopelbow,thentightenthenutandboltuntiltheclampisfirm.Wraptheelbowstrapendoveranadjacentjoist or rafter and secure it with at least two 8-penny nails ortwo#8,1-1/2”screws.Addadditionalelbowstrapsforeachsectionofchimneyintheoffset(Figure4.7).Everychimneysectionintheoffsetmustbesupported.Donotaddmorechimneysectionsuntiltheelbowsandoffset are supported. Be sure that the chimney remains vertical.

ChaseFrame

Stabilizer

PlumbersTape

Install supplementarysupport if height exceeds50 ft or if required by fireplace manufacturer

Each supplementarysupport holds up to25 ft. of chimney

Maintain 2 in. clearancefrom chimney to framing

Figure 4.8

Figure 4.9

J. Supplementary Support & StabilizerInstall a supplementary support if total chimney height isgreaterthan50-feet,orifthefireplacemanufacturerrequiresit.Ifadditionalsupportisneeded,installoneormore supplementary supports which can each support 25-feetofchimney(Fig.4.8).

• Clampthesupplementarysupportbandaroundthepipeusingthenutandboltprovided,andanchorthesupporttonearbybuildingframing.

• Alwaysmaintainthe2”clearancetocombustiblesfromthe chimney pipe.A stabilizer is available andmaybe requiredby somefireplacemanufacturers to keepthe chimney vertical andhelpmaintain clearances tocombustibleswithinachase.

• Clampthestabilizertothepipeusingthenutandboltprovided, and secure legs to nearby framing usingplumber’stapeorguy-wires(Fig.4.9).

Note: The stabilizer does not support theweight of thechimney, it isonlyused tokeepchimneycenteredwithina chase.


K. Install Attic Insulation ShieldTheatticinsulationshieldmustbeinstalledwherethechimneypassesintoanattic.Itspurposeistopreventde-brisandinsulationfromgettingtooclosetothechimney.Inatticareaswherethisshieldcannotfit,orisnotusedyou must enclose the attic portion of the chimney in a framed enclosure. If the chimney is fully enclosed through theattic,anatticinsulationshieldisnotrequired.Installtheatticinsulationshieldasfollows:

• Removeanyinsulationfromatticflooraroundtheframedopening.

• Assemblechimneysectionsuntilatleast18inchesofchimneyextendsabovethefirestop.

• Sliptheatticinsulationshieldoverthechimneyuntilthebasesitssquarelyontheframedopening(Figure4.10).

• Secure the attic insulation shield to the top of the framed opening using at least two 8-penny nails or two #8,1-1/2in.woodscrewsperside(Figure4.11).

• Wrapthecollaroftheatticinsulationshieldaroundthechimney and fasten it loosely. Slide the collar down tomeettheatticinsulationshield.Tightentheboltstosecurethecollarinplace(Figure4.11).

• Combustiblematerialmaycomeintocontactwiththeatticinsulationshieldaslongastherequiredclearancesaremaintained to the chimney pipe.

AtticInsulation

Shield

Firestop

Attic

Figure 4.10

AtticAttic ShieldCollar

FirestopFigure 4.11

L. Install Roof Radiation ShieldsRoofradiationshieldsmustbeusedtoprovideprotectionforrooforchaseframingmembers.

Note: Roof radiation shields do not allow for a reduced clearancetocombustibles.

Clearancetocombustiblesmustbeaminimumof2”away from the chimney pipe.

• Install roof radiation shields at either the top of the chase orwherethechimneypenetratestheroof,whicheveristhe top of the installation.

• Roofradiationshieldsarebuiltwitha1/2”airgapstandofffromthejoistface(Figure4.12).Thecornersoftheroofradiationshieldsoverlapeachother toensureproperposition.

• Secure the roof radiation shields to the top of the framing membersusingscrewsornailsinthecorners.

• Ifframingmembersarefurtherawayfromthechimneythan 2 in., center the roof radiation shield to the chimney ontheframingmemberandsecureinplacewithscrewsor nails.

(4) RoofRadiationShields

ChaseEnclosure

Figure 4.12

M. Attach FlashingForchaseenclosures,usethechasetopflashing.Thechasetopflashingallowsfora1-1/2in.clearancemain-tainedfromthechimney(Figure4.14)andprovidesrequiredventilationair.

• Chase top flashings (includes chase top collars andspacingclips)areavailablefromyourHHTdealer.

• Additionalnon-combustiblestructuralsupportscanbefield-fabricatedtohelpsupportthechasetopflashingifneeded,providedtheairventilationrequirementsaremaintained.SeeFigure4.15.

• Ifthechasetopflashing(40in.x40in.)doesnotensuretheminimum1/2in.spacingandperimeterventilationrequirementsasshowninFigure4.13.,useachasetopcollarandfield-constructtheflashingasneededforthechasedimensions.SkiptoField-Constructed Chase Top Flashing.


1/2"

Chase top flashing

Roof radiation shields

Required spacing clips

Spacing Clips

1/2 in. air spaceestablished byspacing clips

1/2 in. Air Space

Storm collar mustbe installed 1 in.

off chase top

1 1/2 in. ventilation opening around chimney pipe

Figure 4.13

Figure 4.14

Chase TopCollar

Sealant

AdditionalStructural Support

Screw orPop-rivet

InsectScreen

Roof Radiation Shieldsplaced here

Screwsto hold

flashing tochase top

Figure 4.15

1 1/2 in. ventilation opening around chimney pipe Chase Top Collar

Turn-down

Slope downward

Drip edge

Insect-guard screening may be added between chase and chase top flashing.

Figure 4.16

Field-Constructed Chase Top Flashing• Field-constructedflashingmustbeconstructedof24GA

minimumsheetmetalorothersuitablenon-combustiblematerials.

• Theflashingmustbeoversizedtoallow1/2in.airgaparound all four sides.

• Includeaminimum1 in. turndownanda1/2 in.dripedge(optional)topreventwaterfromseepingintothechase.RefertoFigure4.16.

• Additionalnon-combustiblestructuralsupportscanbefield-fabricatedtohelpsupportthechasetopflashingifneeded,provided theair ventilation requirementsaremaintained.SeeFigure4.15.

• Spacingclipscanbefield-fabricatedasneededoutof24GAsheetmetalorothersuitablenon-combustiblematerial(refertoFigure4.13),orpurchasedfromHearth&HomeTechnologies.

• Securethechasetopcollarsectiontothefield-fabricatedflashingwithsheetmetalscrewsorrivets(Figure4.15).

• Seal chase top collar section to flashing with non-hardening waterproof sealant to ensure a weather tight connection.SeeFigure4.15.

• Insect-guard screeningmay be added between thechaseandflashing.

• Installthechasetopflashingatthetopofthechasewitha1/2in.minimumairclearanceoffthetopofthechaseconstruction(Figure4.13).

• Spacingclipscanbefield-fabricatedasneededoutof24GAsheetmetalorothersuitablenon-combustiblematerial(refertoFigure4.13)

• Insect-guard screeningmay be added between thechaseandchasetopflashing.

• Securethechasetopflashingtothechasewithatleastthree screws or nails per side.

• Wheninstalled,thebottomofthechimneycapmustbeatleast6in.abovethechasetopflashing.

• Securethechasetopflashingtothechasewithatleastthree screws or nails per side.

• Wheninstalled,thebottomofthechimneycapmustbeatleast6in.abovetheflashing(Figure4.16).

Note: 30spacingclipsand20 ft insert-guard screening are included with the unit.


Sealant

6 in. min.

1 in.min.

StormCollar

3 ft. minimumabove roof

opening

N. Finish Top• Slidethestormcollardownoverthechimneytothetop

oftheflashing.Thestormcollarmustbeinstalled1in.offthechasetopflashingtoprovideproperventilation(Figure4.17).

• Tightentheboltsofthestormcollarandsealthestormcollar against the chimney with sealant. Be sure chimney and offsets are properly supported.

• Apply a non-hardening waterproof sealant around the chimney at the point where the storm collar will meet thechimneyjustabovetheflashing(Figure4.17).

• Attachthechimneycapontothetopofthechimneybysetting the female end of the cap onto the male end of thelastchimneysection.Securethecapbyusingfoursheetmetalscrews(provided,Figure4.18.)

• Do not push down from the top portion of the cap as this may damage the cap. Push from the lower section of the cap if needed.

• The chimney cap top can be removed for chimneycleaning.

TerminationCap

Figure 4.17

Figure 4.18


O. Chimney Termination Requirements• Installacapapprovedandlistedforthisfireplacesystem.• Locatecapwhereitwillnotbecomepluggedbysnoworothermaterials.• Locate cap away from trees or other structures.• Thebottomoftheterminationcapmustbeatleast3ft(.91m)abovetheroofANDatleast2ft(.61m)aboveanyportion

ofroofwithin10ft(3.05m)asshowninFigure4.19.• SeeFigure4.19fordistancerequiredbetweencaps.

Slanted Roofs

Flat Roofs

Chimney mustextend 3 ft (.9 m)above the roof

Chimney must extend 2 ft (.6 m)above any portion of the roof oradjacent structures within 10 ft (3 m) of the chimney

Chimney mustextend 3 ft (.9 m)above the roof

Chimney must extend 2 ft (.6 m)above any portion of the roof oradjacent structures within10 ft (3 m) of the chimney

Multiple Chimney Locations

A B6 in. (minimum) up to 20 in.

152 mm/508 mm18 in. minimum

457 mm20 in. and over 0 in. minimum

Gas, Wood or Fuel OilTermination Cap

WoodMinimum

(Seeillustration

above)

B

GasTermination

Cap **

A *

Per

pend

icul

ar W

all

* If using decorative cap cover(s), this distance may need to be increased. Refer to the installation instructions supplied with the decorative cap cover.

** In a staggered installation with both gas and wood terminations, the wood termination cap must be higher than the gas termination cap.

Figure 4.19 Multiple Chimney Locations


Roof radiation shields

Allow a 1 in. (25 mm) air gap between storm collar and chase top flashing

1/2 in. (13 mm) air space established by spacers

1/2 in.overhang

14 in. (345 mm) diameter chimney must extend at least 6 in. (152 mm) above chase top flashing.

DuraChimney IIPipe

1/2 in.(13 mm)

Spacers for chasetop flashing

Chase TopFlashing

Storm Collar

20 in. diameteropening

Chimney Cap

Maintain 2 in. (51 mm)clearance betweenDuraChimney II and

chase enclosure

• Chase top shroudsmay be field constructedwherepermittedbyregionalbuildingcodes.

WARNING! Risk of Fire! Shrouds must be constructed as specified.Improperconstructionmayoverheatchasetop.

NOTICE: Some regional codes require an agency-Listed shroud.Consultyourlocalbuildingofficials.

5 Shrouds

• Hearth&HomeTechnologiessuppliesULlistedshrouds.See your dealer for details.

A. Shroud Requirements

Figure 5.1 Shroud Requirements

Shroudscaneitherbefield-fabricatedorfactory-fabri-cated,buttheymustmeettherequirementsasspecifiedintheseinstructions.Shroudsmustbeconstructedofaminimum24ga(.024in.)stainlesssteel,aluminizedsteel,galvanizedsteel,orcopper.Othermaterialsmayalsobeused,suchasbrick,mortar,stucco,stone,etc.providedtheyarecompletelynon-combustible.Checkwithyourlocalbuildingcodeauthoritiesforanyadditionalshroudrequirements.Shroudsmustbeabletoberemovedtoal-low chimney access to properly clean the chimney. Dura-Chimney II installations which include the use of a shroud mustcomplywiththefollowingrequirements(Figure5.1)

• DuraChimney IImustmaintainat least2 in. (51mm)clearancefromcombustiblematerials.

• Thechaseenclosuremustbeventilated.• Thechasetopflashingorfield-fabricatedchasepanmust

beused.Field-fabricatedchasepansareacceptableiftheymeettheserequirements:- Materialmustbe24ga(.024in)galvanizedsteelor

equivalent.- Chasepanmusthaveopening3in.(76mm)larger

than outside diameter of chimney pipe with at least a1/2in.(13mm)upturnedflange/collar.

- Chasepanmustoverhangchaseby1/2in.(13mm)persideforproperairflow.

- Chasepanmusthavea1in.(25mm)downturnedoutsideedge(weatherprotection).


• Field-fabricated spacing clips (1/2 in./13mm tall, 24ga/.024in.galvanizedsteel)mustbeusedtosupportthechasetopflashingorchasepan,inordertoprovideairflow.

• 14in.(345mm)DuraChimneyIIpipemustextendatleast6in.(152mm)abovethechasepan/flashing.

• ADuraChimneyIIcapmustbeusedinsidetheshroud.• Theshroudmustnotbeindirectcontactwithanyofthe

DuraChimneyIIcomponents(otherthanthechasetopflashing).

• Allopenareasoftheshroudmustbecoveredwith1/2in.(13mm)stainlessorgalvanizedsteelmeshscreentopreventdebrisfromenteringtheshroud.

• Shroudsmust follow the dimensional requirementsspecified inTables5.1,5.2or5.3,dependingon thestyleofshroudused.Thethreebasicshroudstylesare1)House, 2)ArchorMailbox, and3)Pyramid.Mostfactory-fabricatedshroudswill fallunderoneof thesebasicstylecategories.

B. House Style ShroudThehouse-styleshroudisroughlysquareorrectangularwithaclosedtopandexhaustopeningsonfoursides(Figure5.2).Table5.1liststheminimumshrouddimen-sions, the minimum open area per side, and the minimum total open area for the shroud.

H

W L

Shaded area represents screened open area. Actual shape of shroud may vary as long as minimum dimen-sions and minimum open area requirements are met.

H: Minimum height of shroudL: Minimum length of shroudW: Minimum width of shroud

Figure 5.2 House-Style Shroud Minimum Dimensions

House Style Shroud Minimum Dimensions

Chimney Diameter Chimney Area Min Height H Min Length L Min Width W

Min Open Area per side

Min Total Open Area

in mm in mm in mm in mm in mm sq in sq in

14 355.6 154 3911.6 24 609.6 32 812.8 32 812.8 260 1040

Table 5.1


C. Arch / Mailbox Style ShroudThearchormailboxstyleshroudgenerallyhastwosolidsidesandasolidtop.Theexhaustopeningsareonthetwoopenendsofthearch(Figure5.3).Table5.2liststheminimumshrouddimensions,theminimumopenareaperside,andtheminimum total open area for the shroud.


H

W L

H: Minimum height of shroudL: Minimum length of shroudW: Minimum width of shroud

Figure 5.3 Arch/Mailbox-Style Shroud Minimum Dimensions

Table 5.2

Arch / Mailbox Style Shroud Minimum DimensionsChimney Diameter Chimney Area Min Height H Min Length L Min Width W

Min Open Area per side

Min Total Open Area

in mm in mm in mm in mm in mm sq in sq in

14 355.6 154 3911.6 24 609.6 32 812.8 32 812.8 520 1040

D. Pyramid Style ShroudThepyramidstyleshroudisroughlysquareorrectangularwithanopentopforexhaustaswellasopeningsalongthebaseofthefoursides(Figure5.4).Table5.3liststheminimumshrouddimensions,includingtheminimumheightandlengthofthebaseopening.


H2

W

B

H1

L

L: Minimum length of shroud top openingW: Minimum width of shroud top openingH1: Minimum total height of shroudB: Minimum length of opening along baseH2: Minimum height of opening along base

Figure 5.4 Pyramid-Style Shroud Minimum Dimensions

Table 5.3Pyramid Style Shroud Minimum Dimensions

Chimney Diameter Min Height H1 Min Length L Min Width W Min Base B Min Height H2in mm in mm in mm in mm in mm in mm

14 355.6 24 609.6 32 812.8 32 812.8 22 558.8 2 50.8


6 Finishing

A. Finishing MaterialRefertoSections1.B.andSections1.C.forcombustible/non-combustiblematerials.RefertoFigure6.1fornon-combustiblezone.

WARNING! Risk of Fire! You must maintain clearances. • DO NOT covermetal fireplace frontwithcombustible

materials. • Installcombustiblematerialsonlytospecifiedclearances

on top front and side edges.

Metal strips are placed 2 in. (51 mm)under the front of the fireplace and must extend beyond the front and sides offireplace opening by 2 in. (51 mm)

Continuous, non-combustible sealant

Floor constructed of wood or other combustible material

1 in. Micoreor equivilent insulation & 1/2 in. Durock

Bottom of fireplace opening and finished hearth may bethe same height

Finished combustible wall

Combustible material

Non-combustibledecorative facing

Tile, stone or othernon-combustible material

HearthRefractory

2 x 4 header, flush withfront of stand-offs

2 x 4 stud wall

Figure 6.2 Decorative Facing

Note: We recommend mor-tar be applied after facing materials are installed.

• Applymetal lathtothemetalfaceornon-combustibleboardwithcorrosion-resistant,self-drilling,self-tappingscrewscapableofpenetratingthemetalsurfaceofthefireplacefaceinpreparationforfinalfinishingmaterial.

• Completeframingandapplydrywalloverframing.• A bead of 300° Fminimumnon-combustible sealant

mustbeusedtocloseoffanygapsatthetopandsidesbetween the fireplaceanddrywall to prevent cold airleaks.

• Largegapscanbebridgedwithfiberglassropegasket.

These metal surfacesmust be coveredwith non-combustiblematerial. High temperature

sealant around edge of fireplace and drywall.

Figure 6.1 Non-combustible Facing


The noncombustible finishing material across the top of fireplace opening will be even with lower edge of metal face.

Noncombustible finishing materials MUST overlapside faces by 1 1/4 in. (32 mm) to cover the edges of the panels. Finished opening should be 50 x 38 in. (1270 mm x 965 mm) to allow for door installation.

If Mortar is applied, it should be applied after finishing material is installed. Mortar will be applied between finishing materials and molded brick edges, bottom and sides.

The seam between finishing materials and firebox top must be sealed with non-combustible sealant.

The surface of the finished hearth extension and the surface of the hearth panel should be level.

Figure 6.3 Facing Materials and Mortar

VERY IMPORTANT: Allow the mortar 72 hours to cure before operating the fireplace.


B. Hearth Extension, Building and Finishing

Table 6.1

R = 1/k x inches of thickness

Table 6.2

WARNING! Risk of Fire! High temperatures, sparks, em-bers or other burning material falling from the fireplacemayigniteflooringorconcealedcombustiblesurfaces.• Protective metal hearth strips MUST be installed.• Hearth extensions MUST be installed exactly as

specified.

Ahearthextensionmustbeinstalledwithallfireplacestoprotectthecombustiblefloorinfrontofthefireplacefrombothradiantheatandsparks.

• YouMUSTuseahearthextensionwiththisfireplace.

• RefertoFigure6.4forminimumdimensions.• Thisfireplacehasbeentestedandapprovedforusewith

ahearthextensioninsulatedtoaminimumRvalueof2.06.

• ThehearthextensionmaterialMUSTbecoveredwithtile,stoneorothernon-combustiblematerial.

• Manufactured hearthmaterials will usually have apublishedR value (resistance to heat) or k value (conductivityofheat).RefertotheformulainTable6.1toconvertakvaluetoanRvalue,

• Refer to Table 6.2 for hearth extension insulationalternatives.

74 in.(1880 mm)

50 in.(1270 mm)

12 in.(305 mm)

12 in.(305 mm)

20 in. (508 mm) Minimum

Figure 6.4 Standard Hearth Extension Dimensions

* 2 in. (51 mm)


Tile, stone or othernon-combustible material

Floor constructed of wood or other combustible material

1 in. Micore and 1/2 in. Durock or equivalent insulation (see Table)

Fire

plac

e

ProtectiveMetal HearthStrip

Durock

**

Note: The bottom of the fireplace opening is 3-3/4 in. (95.3mm) above the bottom of the fireplace. Finished hearth must NOT extend above this level.

Figure 6.5 Standard Hearth Extension Construction

1. Fireplace Installed Flush on the Floor and Hearth Extension Raised to Bottom of Firebox OpeningNon-combustibleflooringaminimumof20in.(508mm)infrontofand12in.(305mm)toeachsideofthefuelopeningisrequired.

Thehearth framingmust be constructedof non-com-bustiblematerials(suchasmetalframingorequivalentmaterial)andplacedonHX3(s)orHX4(s)and1/2 in.Durock,orequivalentmaterial.SeeFigures6.4and6.5.

When creating the platform, allow for the thickness of the non-combustible finishing materials.

Sealgapsbetweenthehearthextensionandthefrontofthefireplacewithabeadofnon-combustiblesealantor grout.

Hearth Extension Insulation Alternatives, R Value = 2.06

Materialk per inch

thickr per inch

thick

Minimum thickness required

Hearth&HomeHX3,HX4 0.49 2.06 1 in.

USGMicore300™ 0.49 2.06 1 in.

USGDurock™CementBoard 1.92 0.52 4in.

CementMortar 5.0 0.20 101/2in.

CommonBrick 5.0 0.20 101/2in.

Ceramic Tile 12.50 0.08 253/4in.

Armstrong™PrivacyGuardPlus 0.46 2.18 1 in.

Marble 14.3-20.0 0.07-0.05 29 1/2 - 41 1/4 in.


Note: The bottom of the fireplace opening is 3-3/4 in. (95.3mm) above the bottom of the fireplace. Finished hearth must NOT extend above this level.

Bottom of fireplace opening

Platform must be built to raise the bottom of the fireplace opening to the level of the desired hearth height.

Protective MetalHearth Strips

Floor and platform constructed of wood or other combustible material


Tile, stone or othernon-combustible finishing material

Non-combustibleFraming Material

1 in. Micore orequivalent insulation

& 1/2 in. Durock

20 in. minimum Hearth Extension

Noncombustible Framing Material HX4 or

equivalent

Figure 6.7 Raised Platform Hearth Extension-Framing

Non-combustibleFinishing Materials

Figure 6.8 Raised Platform Hearth Extension-Finishing

Figure 6.6 Raised Platform Hearth Extension Detail

2. Raised Hearth Extension and Raised Fire-placeNon-combustibleflooringaminimumof20in.(508mm)infrontofand12in.(305mm)toeachsideofthefuelopeningisrequired.

Thehearth framingmustbeconstructedofnon-com-bustiblematerials(suchasmetalframingorequivalentmaterial)andplacedonHX3(s)orHX4(s)and1/2 in.Durock,orequivalentmaterial.SeeFigure6.9.



Figure 6.9 Raised Hearth Extension and Fireplace Framing Materials

Floor

NoncombustibleFraming Material

NoncombustibleFinishing Material

Protective MetalHearth Strips

1 in. Micore and 1/2 in. Durockor equivalent

insulation

20 in. Min.Hearth Extension

Note: The bottom of the fireplace opening is 3-3/4 in. (95.3 mm) above the bottom of the fireplace. Finished hearth must NOT extend above this level.


Non-combustible Finishing Material Protective MetalHearth Strip

30 in. Min.Hearth Extension

1 in. Micore and1/2 in. Durockor equivalent

insulation

FinishedFloor

Note: The bottom of the fireplace opening is 3-3/4 in. (95.3mm) above the bottom of the fireplace. Finished hearth must NOT extend above this level. Bottom of

FireplaceOpening

Figure 6.10 Flush Hearth Extension Side View

3. Fireplace Opening and Hearth Extension Flush with the Floor

Non-combustibleflooringaminimumof30in.(762mm)infrontofand12in.(305mm)toeachsideofthefuelopeningisrequired.Thehearth framingmustbeconstructedofnon-com-bustiblematerials(suchasmetalframingorequivalentmaterial)andplacedonHX3(s)orHX4(s)and1/2 in.Durock,orequivalentmaterial.SeeFigure6.10.



C. Non-Combustible Sealant Material After completing the framing and applying the facing

materialsovertheframing,abeadofnon-combustiblesealantmustbeusedtocloseoffanygapsatthetopandsidesbetweenthefireplaceandhearth

WARNING! Risk of Fire! • Maintain clearances. • Use only non-combustible material below standoffs,

material such as cement board is acceptable. • Framingorfinishingmaterialusedonthefrontof

thefireplacecloserthantheminimumslisted,mustbe constructed entirely of non-combustible materi-als (i.e., steel studs, concrete board, etc.).

WARNING! Risk of Fire! Hearth & Home Technologies is not responsible for

discoloration, cracking or other material failures of finishingmaterialsduetoheatexposureorsmoke.

• Choosefinishingmaterialscarefully.

Non-combustible Sealant

Figure 6.11 Place Non-combustible Sealant


D. Sidewalls/Surrounds• Locateadjacentcombustiblesidewallsaminimumof

24in.(305mm)fromthefireplaceopening.• Mantellegs,surround,stubwall,whethercombustible

ornon-combustible,maybeconstructedasshown inFigure 6.9.

18 1

/2 in

.[4

70 m

m]

19 3

/4 in

.[5

00 m

m]

4 in

.[1

02 m

m]

50° angle

39° a

ngle

24 in

.[6

10 m

m]

BR

ICK

FRO

NT

FLU

SH

FRO

NT

24 in

.[6

10 m

m]

22 3

/8 in

.[5

68 m

m]

52-7

/8 in

.(1

343

mm

)

42 in

.[1

067

mm

]

Not

e: G

rid d

epic

ts 1

inch

squ

ares

.

Figure 6.9 Mantel Leg, Surround or Wall Projections (accept-able on both sides of opening)

7 ft (2134 mm)minimum

base of fireplaceto ceiling

Combustible Wall

2 x 4 stud wall

Standoffs

Measured from top of fireplace opening

12 in./305 mm

1 1/2 in./38 mmmaximum

Mantel

22 in./559 mmminimum

Combustible Decorative Facing

6 in./152 mmminimum

12 in./305 mmminimum

Grid represents1 in. squares

Non-combustibleDecorative Facingsuch as:Steel, iron, brick,tile, concrete, slate,glass, plasters. DO NOT cover any air openings in the faceof the fireplace.

Seal joint with non-combustiblesealant to prevent heat from beingdrawn into the wall cavity.

E. Mantel and Wall ProjectionsAcombustiblemantelmaybepositionednolowerthan63-3/4in.(1619mm)fromthebaseofthefireplace.

Thecombustiblemantelmayhaveamaximumdepthof12in.(305mm).Combustibletrimpiecesthatprojectnomorethan1-1/2in.(38mm)fromthefaceofthefireplacecanbeplacednocloserthan6in.(152mm)fromthetoporsideofthedecorativefront.Combustibletrimmustnotcover:

• themetalsurfacesofthefireplace,• where the non-combustible board is placedover the

metal surfaces,• thespacebetweenthemetalfaceofthefireplaceand

framingmembers.

Figure 6.10 Mantel Specifications

WARNING! Risk of Fire! • Youmustsealaroundthefinishingmaterialtofireplace.


LH Traditional Refractory

Back Traditional Refractory

Hearth

Grate Retainer

Refractory Clips

LH HerringboneRefractory

Back HerringboneRefractory

Hearth

Grate Retainer

Refractory Clips

7 Fireplace Setup

A. Install Hearth Molded Brick Panel• Placehearthpanelintothefireplace.

B. Install Back Molded Brick Panel• RemoveScreenRods• RemoveSmokeshield• Refer to Figure 7.1.• Setthegratebracketsinplace,26.5in.(673mm)center

to center. • Installthebackpanel.Centerfromsidetoside.• Install two refractory clips in the mortar lines across the

top.Tightentheseandallpreviouslyinstalledbrackets.

C. Install Side Molded Brick Panel• Ifagaslineistobeinstalled,removetheknockoutsin

the innerfireboxand in theoutershellon thesideofyour choice. Refer to dimension drawings for location ofknockoutsandSection7.I.forgasprovisions.

• Install side panel, tapered edge to the front. Align the frontedgewiththefrontofthecolumn(orbuttedtothesurroundifinstalled).

• Install two refractory clips in the mortar lines across the top.Tightentheseandallpreviouslyinstalledbrackets.

• Installsecondsidepanelfollowingthestepsabove.• Replacesmokeshield.

Figure 7.1 Traditional Molded Brick Panel Figure 7.2 Herringbone Molded Brick Panel


D. Install Screens• Layonescreenpanelflatandslide the roundendof

the rod through the rings starting at the handle side of screen.Leavethelastringofftherod.

• Inserttherodthroughtheholeinthebracket.Slipthelastringovertherodontheothersideofthebracket.

• Fastentheflatendofthescreenrodbackinplaceusingthescrewremovedearlier.

• Repeat for the other screen panel.

Cen

ter o

f Fire

plac

e O

peni

ng

Round end of Rod through rings, then into Screen Rod Clip

Rod ScreenClip

InsideFirebox

Top of Fireplace

E. Install Mortar (Optional)Thebrickpanelshavebeendesigned for installationwithouttheuseofmortarbeingnecessary.Ifthelookofmortarispreferred,itisavailableandcanbeinstalled.Followthedirectionsonthecontainerformixing.

F. Grate• Installthegrateifagaslogsetisnotgoingtobeinstalled.• PositionthereargratebarintheGrateRetainer.• Positionthetopofthegrateretaineroverthereargrate

barandfasteninplacewithscrewprovided.

Figure 7.3 Install Screens

Note: Herringbonerefractorymayrequiretwobucketsofmortar.TheTranditionalrequiresonlyone.


G. Gas Log/Lighter ProvisionWARNING! Fire and/or Asphyxiation Risk! Use with solidwoodfuelordecorativegasapplianceonly.Gasfiregenerates fumes.• Damper must be locked fully open when gas logs are

installed

Firebox

Repackinsulationknockout

Combustible materials

Maintain air clearance to combustibles.

Gas line

Combustible materials may be located at zero clearance to gas line beyond 4 in. (102 mm) from fireplace side.

Gas line

1 1/2 in. (38 mm)air space aroundpipe

Refractory

Seal withfireplace mortaror non-combust-ible sealant

4 in. (102 mm)

Outer shellof fireplace

Figure 7.4 Gas Line Installation

H. Wood Burning InsertsWARNING! Risk of Fire! Improper installation of wood in-sertsmaycausefireplaceorchimneysystemtooverheat.

Ifawoodburninginsertisbeinginstalledinthisfireplace,Hearth&HomeTechnologiesrecommendsfullrelineofthe chimney.

• Cooling air openings at the top of the chimney must not beobstructedinanymanner.

• Hearth&HomeTechnologiesrecommendssecuringtherelineatthetopoftheflueandusingthecapcertifiedforusewiththisfireplacesystem.

Figure 7.5 Gas Line Dimples

Acertifiedgasloglighterordecorativegaslogsetcanbeinstalledinthisfireplace.

Vented Gas Logs

Unvented Gas Logs CAUTION! Ifanunventedgasapplianceisinstalledin

thefireplace,thegasappliancemustonlybeoperatedwith the fireplace glass door fully open (if included).Onlyunventedgaslogsetswhichhavebeenfoundtocomplywith thestandard forunventedroomheaters,ANSIZ211.11.2,aretobeinstalledinthisfireplace.Ifanunventedgasapplianceisinstalleditmustincorpo-rateanautomaticshutoffdevice,andmustbeinstalledinaccordancewiththeNationalFuelGasCodeZ223.1,Latest edition.

• Maximuminputis100,000BTU/hr.• Decorative gas appliancemust be certified toANSI

Z21.60/CSA 2.26 “Standard for Decorative GasAppliancesforInstallationinVentedFireplaces”.

• MustbeinstalledinaccordancewiththeNational Fuel Gas Code, ANSI Z223.1 and Natural Gas Installation Code, CAN/CGA-B149.1-M95 or the Propane Installation Code, CAN/CGA-B149.2-M95.

• A gas log set must incorporate a gas shutoff.• GasLogsetrequiresthedampertobelockedfullyopen.• Alistedautomaticdampersystemwithsafetyinterlock

may be used in this fireplacewith only compatible,listed gas log sets. See damper system manufacturer’s instructions.

• Knockoutsareprovidedonbothsidesofthefireplaceandinrefractoriesfor1/2in.(13mm)ironpipe.

• Seal refractoryaroundpipewithfireplacemortaroranon-combustiblesealant.

WARNING! Do Not operate an unvented gas log set in this fireplacewiththechimneyremoved.

Gas Line Dimple

Gas Line Dimple


8 Reference Materials

B. Optional Components

20 in.(508 mm)

66 in.(1676 mm)

1/2 in.(13 mm)

HX4 Hearth Extension

ID4 Insulated Duct

UD4/6 Uninsulated Duct

42 in. (1067 mm)

4 in. (102 mm) i.d.

42 in.(1067 mm)

6 in. (152.4 mm) i.d.

ID6 Insulated Duct 6 in. (152 mm) i.d.

(Required/shipped separately)

DFG4050 Series Glass Doors(optional)

DFS4050 Series Screen Doors(optional)

A. Chimney Components

Catalog # Description14DCA-12 Pipe 12 inch

14DCA-18 Pipe 18 inch

14DCA-36 Pipe36inch

14DCA-48 Pipe48inch

14DCA-E15 15degreeElbow

14DCA-E30 30dectreeElbow

14DCA-ES ElbowStrap

14DCA-SS Supplementary Support

14DCA-ST Stabilizer

14DCA-FS Firestop

14DCA-IS Insulation Shield

14DCA-RRS Roof Radiation Shield

14DCA-CTF Chase Top Flashing

14DCA-VC Chimney Cap

14DCA-SC Storm Collar

14DCA-WS WallStrap

14DCA-CTC Chase Top Collar

CT14-A Adapter-mayonlybeusedwiththefollowing copper caps

CT-King

CT-BishopI

DTO146-CP DecorativeCap

DTS146-CP DecorativeCap

14 in.(356 mm)

-i.d.-

17 in.(432 mm)

-o.d.-

Duravent Pipe Dimensions

B

A

C

B

C

A

DTS146 DTO146Decorative Caps

A B CDTO146in 46 22.7 26mm 1168 576 660

DTS146 A B Cin 46 21.18 26mm 1168 538 660


Majestic,abrandofHearth&HomeTechnologies7571215thStreetWest,Lakeville,MN55044

www.majesticproducts.com

PleasecontactyourMajesticdealerwithanyquestionsorconcerns.ForthelocationofyournearestMajesticdealer,pleasevisitwww.majesticproducts.com.

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