INSTALLATION : EXHAUST FLUE INSTALLATION
INTERNAL VERTICAL FLUE
Installation will require the use of double-wall UL-103 HT (US) or ULC-S629 (Canada) Class A 2100°F stainless steel flue components to pass through the ceiling, attic and roof. Connect and seal all flue connections as indicated at the beginning of this section.
VERTICAL FLUE - HEIGHT ABOVE NEARBY BUILDING COMPONENTS
The vertical flue must extend to a height not less than 2 ’ above any building component within a 10 ’ radius of the flue. If the vertical portion of the flue penetrates the roof overhang, a DuraTech Firestop radiation shield and adjustable roof flashing are required. The vertical flue must extend at least 3 ’ above the roof surface where it penetrates the roof. DO NOT INSTALL A FLUE MANUFCTURER’S FLUE CAP as it will unduly restrict the flow of pressurized exhaust gases. Use only the GARN manufactured rain cap, Part # P-0102 available at www.garnparts.com. Check with your local building inspector about any additional height restrictions.
DO NOT USE A VERTICAL FLUE IF THE BUILDING HAS A COMBUSTIBLE ROOFING MATERIALS OR IF TREE BRANCHES ARE ABOVE THE FLUE.
CONNECTION TO A MASONRY CHIMNEY
Only under limited circumstances may a GARN® be connected to a masonry chimney. Masonry chimneys are designed for heating devices that burn continuously in cold weather. Because the GARN® is only burned periodically, the masonry chimney must have a continuous, insulated minimum 6” diameter stainless steel liner. It must be surrounded with fireproof insulation and it must be no taller than 24 ’ . The maximum total static pressure loss in the vertical portion of the existing flue must not exceed 0 .10” of water column at a flow rate of 375 CFM.
GARN WHS 1000 and WHS 2000 Manual © HY-C Company LLC - September 2024
48
Made with FlippingBook - professional solution for displaying marketing and sales documents online