•Distance from bottom of termination and grade - one foot (1 ft.) minimum. This is conditional upon the plants and nature of the grade surface. The exhaust gases are hot enough to ignite grass, plants, shrubs, etc. located in the vicinity of the termination. The grade must not be a lawn. Distance from bottom of termination and public walkways is seven feet (7 ft.) minimum.
•Distance to combustible materials – two feet (2 ft.). This includes adjacent buildings, fences, protruding parts of the structure, roof overhang, plants and shrubs, etc.
•The installation must include a cleanout tee to enable the collection of fly ash and permit periodic cleaning of the exhaust system. 90° elbows accumulate fly ash and soot, thereby reducing exhaust flow and performance of the unit. Each elbow or tee reduces draft potential by up to 30%.
•Total length of horizontal vent must not exceed 48” (4 ft.). All joints in the vent system must be fastened by at least 3 screws, and all joints must be sealed with RTV silicone sealer to be
•The “PL” vent or single wall stainless exhaust system must be installed so as to be GAS TIGHT! Follow the vent manufacturer’s installation instructions.
•The area where the vent pipe penetrates the exterior of the home must be sealed with silicone or other means to maintain the vapor barrier between the exterior and the interior of the home.
NOTE: These are guidelines only. Proper venting is accomplished by design and common sense. In most installations,
DO NOT CONNECT TO ANY AIR DISTRIBUTION DUCT OR SYSTEM.
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