Oh so it's a pressure switch, ok. Keeps the heater from operating unless there is pressure so it doesn't overheat? Maybe air pocket in the lines?
Good luck.
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16 years ago
cost of running an exhaust fan 24/7?
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16 years ago
It's not just the cost of running the fan. That air is being exhausted to the outside, and has to be replaced by other air that must be heated or cooled to room temperature. So, your HVAC is running more, also.
Steve
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4 years ago
replying to jthread, Tonya Riggs wrote: You are a very sick individual. Seek help!