Furnaces. Very inefficient!
Seems to me that the furnaces in rv's are patheticly inefficient. There are natural gas house furnaces that are so good that the exhausts are plastic!
Forum Discussion
I don't think there is anything wrong or inefficient with RV furnaces. Actually, they throw a tremendous amount of heat for their size. The problem is single pane windows, thin walls, drafts around slide-out seals, small holes, openings, sky light roof vents that are think plastic single layer, no insulated. Then consider many RV's are designed to heat space that is not livable, like basements, under bellies, and such, and actually, those small RV furnaces do quite a remarkable job!
