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Thread: negative pressure ?
02-01-2006, 12:05 AM #1Professional Member
- Join Date
- Sep 2005
I hear a lot of people talking about negative pressure causing problems with furnaces not running correctly.
How can u tell if a house has negative pressure on it.
I also read on a prior post that is could make a limit pop on inducer motor. How is that possible.
02-01-2006, 12:16 AM #2
I assume your talking about 80+ furnaces. They are really natural draft, the vent pipe should be negative. if the home is negative, it can prevent the flue from venting properly and trip the over temp switches.