Propane furnace sending heat to outside vent
Hi, Running our Suburban propane furnace it seems like the unit is pushing as much (or more) heat out of it's exterior vent as it is to the interior vents. At the vents the flow is a gentle convect...
Forum Discussion
Sam Spade wrote:Chris Bryant wrote:
They are both the same motor- one cannot fail without both failing, plus the sail switch is specifically meant to prevent this.
OK on the sail switch; forgot about that.
But since when is there a fan helping the exhaust gasses get out ??
ONE motor with TWO blower wheels on it....
Combustion air wheel which supplies burner and then forces hot air thru heat exchanger and out exhaust port (high temp limit switch)
Room air wheel which flows air across heat and out thru discharge plenum to duct/floor registers (sail switch)
