Originally Posted by blevinseve
I am a bit confused about the heat pump. You have a furnace why a heat pump? Not sure when to use it or why. Yes I'm a newbie....appreciate any feed back.
Heat pump--(yes heat pump, not just electric coil in AC). Advantages, runs on electric so (at a camp site) it costs you nothing. Air distributed through ceiling ducts. Disadvantage--only effective down to about 35 degrees. Warm air is not circulated into air under floor or compartments to keep holding tanks and pipes warm.
Furnace--Runs on 12 volt (for fan and controls) and propane for heat. Advantages--heats with much warmer air than heat pump, through ducts generally at floor level. Can be used when no electric is available (although uses up battery power rather quickly). Heats space where pipes and tanks are under floor to help prevent freezing. Disadvantage--uses your propane.
If I have electric available and outside temperature is 40 or above, I use heat pump. Switch to furnace in lower temperatures or when no electric (of course you could run generator for electric).