Thoughts on circulating warm air in the RV?

2gypsies wrote:
Have you thought of using a propane heater? They create a constant warmth and are very economical. We used one for 16 winters.

Yes, the Big Buddy or the catalytic heaters work well for heating small spaces. Since they are burning inside an RV, open windows or vents are necessary for fume removal and oxygen replenishment.

I have a vented propane heater in my 22' trailer. This replaced the typical RV furnace. The Sportsman heater I have is 20K BTU and when the trailer is up to temp, we turn it down to idle or just the pilot. Depending on outside temps and door openings, it sips propane. It doesn't have the typical furnace fan so doesn't draw down batteries. I have used a small computer fan near it to move heat further into the cabin.

I have 2" pipe to the heater for combustion air and for stack air. There's little sense to be exhausting or burning the cabin air since the make-up air will come from outside through any openings, principally through the door seals.