ThermaFlueRevolutionary insulating sleeve for flexible flue liners

10 year product guarantee

Quick and simple to fit

Excellent thermal properties, moisture repellent and robust

Specialist distributor of flues, chimneys & renewable appliances

www.docherty.co.uk

ThermaFlue is a high quality insulating sleeve for flexible flue liners. It is designed to be quick and easy to fit and robust in construction to prevent damage when pulling down through the chimney.

Welcome toThermaFlue

ThermaFlue

ThermaFlue is a high quality insulating sleeve for flexible flue liners. Each sleeve is hand manufactured and inspected to exacting standards.

The sleeve is stitched with Aramid sewing thread, ideal for high stress applications requiring extreme strength and heat protection.

Each length has an overlap collar with a D-G link system that ensures consistent thermal insulation. Adjustable hook and loop fasteners facilitate a taut fit around the flexible flue liner. With additional flame retardant Velcro fastenings.

DistributionDocherty Group is a distributor of ThermaFlue in the United Kingdom and Republic of Ireland.

We’re one of the leading independent UK manufacturers of flue and chimney systems and renewable fuel appliances.

With over 50 years’ experience, our name is synonymous with consistent quality, reliable supply and excellent customer care, delivered through a network of our own branches and dealers.

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Application

It is recommended that where chimneys are positioned on external walls, or where the chimney void is particularly large, that the flexible flue liner is insulated. This is to prevent the flue gases from condensing which is highly corrosive and will result in the liner prematurely failing. Insulating a flexible flue liner helps maintain flue gas temperature and improve chimney and appliance performance.

Material Specification and Warranty

The inner wall is a high quality inflammable needled glass fibre that provides excellent mechanical resistance and stability. The outer wall is a moisture repellent inflammable silicone coated material. ThermaFlue is guaranteed for 10 years.

Dimensions

ThermaFlue is manufactured in one metre sections and available in two widths. TH5-6 is suitable for 125mm and 150mm diameter liners and TH7-8 for 175mm and 200mm diameter.

Approval

ThermaFlue has been tested to BS EN1856-2:2009 with a Designation T450 N1/P1/P2 D or W Vm (L*****)O.In the case of a chimney fire like the liner it must be replaced. Please see fitting instructions for details.It is capable of withstanding higher temperatures but must be replaced, like the liner itself, after a chimney fire.

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Additional product information

A heavy duty ThermaFlue wrap for extreme temperatures is available (ThermaFlue Plus) also tested to BS EN 1856-2:2009 Designation T600 N1/P1/P2 D or W Vm(L*****) G. Details available on request.

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Warranty terms and conditions

Installation Guide

Thermaflue™ sleeves are guaranteed for ten years subject to the following conditions:• The appliance must be operating normally, set correctly and

using only good quality fuels. Check the HETAS website for a list of approved fuels.

• The guarantee is not valid if refuse or any type of plastic is burnt, or if the appliance is located where any substance containing Chlorine of Florine can be drawn into the air intakes, or where fuel which releases chlorine is burnt.

DescriptionThermaflue™ insulation sleeves are designed to improve the operation of solid-fuel burners and minimise deposit build up within the flexible flue liner by maintaining a more stable flue draught and temperature. The sleeves are comprised of two layers of high-temperature insulation material; an external water-resistant, silicone coated woven E-glass cloth and an internal needled fibreglass matting. These are wrapped around the flue liners and secured with buckle fasteners and connected along the length of liner by metal D and G links.

SpecificationDesigned and tested to withstand long term operational tem-peratures of 450°C. Suitable for all gas, oil and solid-fuel burning appliances to which a flexible flue liner can be attached.

Health and SafetyThe internal layer of Thermaflue™ is comprised of continuous filament fibres made from borosilicate E Glass. The filament diameters are uniform and are well above the maximum size considered to be respirable (approx. 3 micron). They will not subdivide into fibrils of a smaller diameter. As a result this product is classified as low hazard. During installation there is a risk of irritation due to exposure to the glass fibres. Inhalation: In case of inhalation of glass dust particles or fumes that may result from thermal degradation move into fresh air, if irritation persists seek medical attention. It is recommended that when removing Thermaflue™ after a chimney fire a mask is wornSkin contact: If irritation is a problem then rinse the affected areas with cool water, then wash gently with mild soap. If glass fibre becomes embedded in the skin then seek medical attention. Please note that gloves should always be worn when handling a stainless steel flue liner and so no additional protection is needed when Thermaflue™ is included in the installation.Eye contact: Flush eyes with clear water for at least 15 minutes, if irritation persists seek medical attention.

Ordering and Sizing InformationThis product is available in 1 MTR lengths in two sizes; 125 – 150mm (5” – 6”) and 180 – 200mm (7”- 8”)

HandlingThe Thermaflue™ sleeves are manufactured, packed and deliv-ered with care but it is possible that during this process damage may occur. It is important all components are checked on arrival and that any damage is reported immediately. If damage occurs after this the manufacturer cannot take responsibility. The Thermaflue™ sleeves are robust when installed but must be handled with care during transport and installation. Damaged sleeves must not be used.

1. PreparationStraighten out the flue liner in a suitable location.Lay out the correct number of insulation pieces to cover the length of flue liner with the fabric side down.Place the flue liner on top of the insulation ensuring the smoke direction arrow is pointing so that the collar/D-Rings on the insulation are at the top (cowl end) of the flue liner.

2. FittingStarting at the top of the flue liner close the first insulation piece around the flue liner, by overlapping the Velcro strips along the length of the blanket and then fold across the Velcro strips for addition support.

Link the next piece by connecting the D-Rings to the G-Rings on the previous piece.

Repeat the above steps until all the insulation pieces have been fitted.

3. Nose ConeBend the rope loop to 90 degrees using screwdriver/pliers. Bend the ‘feet’ to 90 degrees using pliers (in the opposite direc-tion to the rope loop.Bend the arms of the cone to form shape.Fit the nose cone to the flue liner ensuring that the feet catch in the ridges of the flue liner and secure using heavy duty tape.Attach rope to end of cone through loop.

4. Inserting LinerRefer to flue liner manufacturer’s instructions for fitting and ventilation methods.

PLEASE NOTE:A. Any tape or other items used to fit/secure the nose cone or assist with installation should be removed prior to use as they could be made from a combustible material

B. The void around the Thermaflue within the chimney stack should be ventilated at the bottom and top of chimney stack. See HETAS for details, flue manufacturers instructions, warranties for suggested methods of ventilation.

C. As an extra safety precaution we recommend that the Thermaflue starts at 1 metre from the appliance spigot (see diagram below). This will allow for some dissipation of heat particularly if the appliance is being overfired or when refueling where the flames may be brawn directly into the flue.

Rigid single wall connecting flue pipe

Single wall rigid pipe to flexible liner adaptorNote: when using a Docherty top hat adaptor it can be used for bottom ventilation

Thermaflue

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Group Head Office Units 15/16 Colthrop Business ParkColthrop Lane, Thatcham Berkshire, RG19 4NB T: 01635 292400 F: 01635 201737 E: info@docherty.co.uk

The Docherty Group in the UK

www.docherty.co.uk

Specialist distributor of flues, chimneys & heating appliances

Area Sales Managers

Birmingham branchBranch Manager: Alan Turberville55 Woodburn RoadBirmingham, West Midlands, B66 2PUT: 0121 555 6789

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Nottingham branchBranch Manager: Lee HarrisUnit 15, Robin Hood Street Ind. Est.off Alfred Street SouthNottingham, NG3 1GE

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Gateshead branchBranch Manager: Yasmin BlakeburnEleventh Avenue, Unit 15 Kingsway Interchange, Team Valley Trading EstateGateshead, NE11 0JYT: 0191 488 1111

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Bristol branch Branch Manager: Neil JewellFlue House, Portway Trading EstatePortview Road, Bristol, BS11 9LQT: 0117 982 8252

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Norbiton branchBranch Manager: James MoorcroftUnit C Station Yard, Coombe RoadNorbiton, Kingston, KT2 7AZT: 020 8391 0093

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Thatcham branchBranch Manager: Liam IlottUnits 15/16 Colthrop Business ParkColthrop Lane, Thatcham Berkshire, RG19 4NB T: 01635 292400

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Dunkeswell branchBranch Manager: Darren HooperUnit 20, Flightway Business ParkDunkeswell, Devon, EX14 4RDT: 01404 890098

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Sure Fire Training ServicesUnit E, Fairview BuildingsHeage Road Industrial EstateRipley, Derbyshire, DE5 3GHT: 01773 570408 • 0345 260 0166E: info@surefire.org.uk

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Leeds branch Branch Manager: Ryan MoorhouseUnit 7, Overland ParkGelderd Road, Leeds, LS27 7JNT: 01132 381200

Warrington branchBranch Manager: Mark GarrettUnit 2, Rivington CourtWarrington, WA1 4RTT: 01925 807950

Adina Heating ProductsUnit C, Fairview BuildingsHeage Road Industrial EstateRipley, Derbyshire, DE5 3GHT: 01773 571 330 E: sales@adinaheating.co.uk

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Benjamin Chapman07771 654897 bchapman@docherty.co.uk

Darren Willetts07850 994 128dwilletts@dochertyco.uk

Jason Edwards07918 561 431 jedwards@docherty.co.uk

Alan Smith07545 503 575asmith@docherty.co.uk

Sacha Aarons07974 975 444saarons@docherty.co.uk

Andy Bishop07595 205 268abishop@docherty.co.uk

Marc Foster07918 561 430 mfoster@docherty.co.uk

Mark Kerry07966 471 139mkerry@docherty.co.uk

Phil Chaplain07590 228 714pchaplain@docherty.co.uk

Alex Daynes07818 030 721 adaynes@docherty.co.uk