Why no continuous furnace fan option?
I am on my second 35 foot gasoline powered Class A coach and both have two roof mounted Dometic heat pumps and a separate gas furnace, one an Atwood and the other a Suburban. The heat pumps have high...
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Another reason why there is no continuous fan setting for RV furnaces is that the fan motor serves two purposes (there are two fans connected to the motor shaft). One fan is the circulator fan for the heated air, running on the house side of the heat exchanger. The other fan moves combustion air through the burner and heat exchanger on the other (outside) part of the heat exchanger. If there is no flame, the heat exchanger is going to be taking heat from the interior air and transferring it to the colder outside air. You'd be cooling the RV, not just circulating the air.
Household furnaces either don't have a fan on the burner side, relying on convection, or else have a completely separate blower assembly that can be controlled independently.
Household furnaces either don't have a fan on the burner side, relying on convection, or else have a completely separate blower assembly that can be controlled independently.
