efficiency of the heater/furnace
I haven't had this experience with the camper I am using now (the 2009 H/R may have a different type furnace than the 20006 Jayco but I doubt it) but last year it was cold outside and I was at a camps...
Forum Discussion
You didn't say what make/model your furnace is, but the quote below applies to the Atwood/hydro-flame 8500 series furnaces used in many RV's.
Atwood 8500-IV Series Furnace
NOTE: Furnace efficiency rating is a thermal rating determined under continuous operating conditions, independent of any installation. Efficiency rate is given at 77% minimum, actual efficiency rating may be higher.
Atwood 8500-IV Series Furnace
