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Thread: furnace vent prblem
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09-02-2011, 11:43 AM #1
Kenneth Jahn Guest
furnace vent prblem
I have a problem getting a proper draft during high wind. Is there an attachment for the end of the intake pipe to prevent the wind from causing no vent? Thank you
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09-02-2011, 01:32 PM #2
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Re: furnace vent prblem
Drafting problems or back drafting are usually associated with the flue pipe not being tall enough above the roof; too close to another object like a ridge peak or wall; Distance of flue pipe is too long; etc.... Another cause can be the lack of proper combustion air.
Originally Posted by Kenneth Jahn
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09-02-2011, 02:02 PM #3
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Re: furnace vent problem
I kept reading this and presuming it was a direct vent (i.e., the "intake pipe"), but I now suspect this is a Type B gas vent and the "intake pipe" is at the draft hood ... so, based on that ... Originally Posted by Kenneth Jahn
In addition to what Scott said: insufficient slope of horizontal section; horizontal section greater than allowed in relation to the height above the draft hood; use of a regular Type B gas vent cap instead of a high wind style Type B gas vent cap (there is a difference); no draft hood being used; and I am sure there could be other causes as well.
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