W415-0702 / 10.30.08143.4 OUTSIdE AIR3.5 mOBILE hOmEAvailable from your Authorized Dealer (114KT)Outside air must not be drawn from an enclosed space (garage, unventilated crawl space).NOTE: Wolf Steel Ltd. strongly suggests using outside air for all residential installations, especially forthose that are energy efficient, air-tight homes.Outside air supply must not be over 15' long.Outside air vents must be made with 1 3/4" diameter or larger metal or aluminum duct with a metal screenattached to the end to keep out rodents (P.V.C. or other materials may not be used).The outside air inlet must not be above or within 12" of the chimney termination, must have a rain cap ordown-turned elbow to prevent the water from entering and be located so that it will not become plugged bysnow or other material.Outside air is required for all combustible built-in enclosure installations.Installation into a manufactured home or mobile home should be installed inaccordance with the Manufactured Home Construction and Safety Standard,Title 24 CFR, Part 3280, in the United States or the Mobile Home Standard,CAN/CSA Z240 MH Series, in Canada.The heater must be grounded to the steel chassis of the mobile home (Somestates do not require this; check with your local building department).! WARNINGDo not install in a sleeping room.The structural integrity of the manufactured home floor, wall, and ceiling roof must be maintained.TP - OUTSIdE AIR 114kTTP - mObIlE hOmE_PEllETfIGure 3.6