Heat out the exhaust

[campfiregirl57]

Well I am trying to use the propane furnace again after getting a leak fixed.
I checked those two outlets on the outside of the camper behind the furnace and there is seems to be a lot of heat blowing out of there ...my question is ...is that norma?
TIA

[Bluepill]

Absolutely normal. It is exhaust heat, just like a car.

[Flybob]

Yes top one is usually the exhaust ( think furnace chimney) and the lower one is fresh air intake.