RadiatorHeatLoad

RoomName #ofRads Height Width Tubes Columns FtofCIBB Sections SqFt/Section Total

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TOTALSQFT:SqFt*150BTUH(@170˚):

Room by Room Calculation

Block Calculation

PavilionIAQHi-VelocityQuickEnterSheetDATE

JOBNAME**WHOLESALER_____________________CONTRACTOR**

ftftftftsqftsqftsqftsqftsqftsqftftsqftsqftsqft#RoomNameRoomRoomExp.CeilNorthEast/SouthSkylightSE/SWFloorFloorExposedStandardPatioLossGain

LengthWidthWallHeightWindowWestAreaEdgeCeilingDoorsDoorsBTUHBTUH

1****************************

2

3

4

56

7

8

9

1011

12

13

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1516

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18

1920Construction&InsulationFactors("R"Value/InchesofInsulation){0"=R3,2"=R7,3.5"=R12,6"=R20,9"=R30,12"=R40}

Circlebelowallfactorsthatapply:Glass(Panes)DesignConditions**ExposedWall0"/2"/3.5"/6"**GlassDoorsgl/dbl**ColdFloorPerimeter1"/2"HeatingTemp.(

OFOutside)**

**Ceiling0"/3.5"/6"/9"/12"**Skylightsgl/dbl**StandardDoorsY/NCoolingTemp.(OFOutside)**

**ColdFloorArea0"/3.5"/6"/9"/12"**Windowssgl/dbl_______AirChange/Hour.5/1.0

AllAreaswith**areneededinordertocompleteloadcalculationPavilionQuickEnter.xls

Degree Days

Degree Day Calculation Heating Degree Days:

Wilmington, DE = 4930 Boston, MA = 5361 Philadelphia, PA = 5180 Concord, NH = 6751 Baltimore, MD = 4680 Montpelier, VT = 7652 New York, NY = 4880 Binghamton, NY = 7340

Sample Calculation 1 Home burns 1000 gallons of heating oil/year.

Location is Philadelphia. Old Boiler is 75% efficient.

HL x 24 x DD F = -------------------- E x P x ΔT

F x E x P x ΔT HL = -------------------

24 x DD

OR

1000 x .75 x 140K x 70 = 7,350,000,000 HL = ---------------------------- ------------------ = 59,121 MBH 24 x 5180 124,320

Sample Calculation 2 Home burns 1600 Therms of natural gas/year.

Location is Boston. Old Boiler is 77% efficient. 1600 x .77 x 99K x 75 = 9,147,600,000 HL = ---------------------------- ------------------ = 71,096 MBH 24 x 5361 128,664

FORMULA

FUEL VALUES: 1 Gallon #2 Heating Oil ≈ 140,000 BTUs

1 Gallon Liquid Propane Gas ≈ 91,000 BTUs 1 Therm of Natural Gas = 100,000 BTUs

Number'of'Baths

Number'of'Bedrooms

Wired'for'Priority

Wired'for'Non5Priority

2 5,100 10,4001'5'1½

3 5,100 10,400

2 5,100 10,400

3 6,100 13,0002'5'2½

4 7,000 14,300

5 10,400 20,500

3 7,000 14,300

4 8,200 17,3003'5'3½

5 10,400 20,500

6 11,000 21,500

Add'to'Heat'Load

Sizing'Additional'Boiler'Load'for'DHW

BTUH%Capacity%by%Pipe%Size

CHART%1:%Steel%Pipe%size Maximum%flow%(gpm) Btuh½" 2 15,000¾" 4 40,0001" 8 80,0001¼" 16 140,0001½" 25 220,0002" 50 450,0002½" 80 850,0003" 140 1,300,0004" 300 3,000,0006" 850 8,500,0008" 1,800 18,000,00010" 3,200 32,000,00012" 5,000 50,000,000

CHART%2:%Copper%tubingTube%size Maximum%flow%(gpm) Btuh

½" 1½ 15,000¾" 4 40,0001" 8 80,0001¼" 14 140,0001½" 22 220,0002" 45 450,0002½" 85 850,0003" 130 1,300,000

CHART%3:%PEX%tubingTube%size Maximum%flow%(gpm) Btuh

⅜" 1.2 12,000

½" 2 20,000

⅝" 4 40,000

¾" 6 60,000

1" 9.5 95,000