direct propane heat is the most cost effective and 'distribution' effective
the propane furnace will heat the 'whole' RV, the furnace intake and exhaust connect outside, it is a sealed system just like a HOUSE
it uses battery power for the blower,
but MUCH LESS power than your electric heater is using
electric heat via inverter from battery is costly, NOT efficient and hard on the batteries
a Catalytic heater plumbed into the RV propane system is extremely efficient and cost effective
ours is in the kitchen, i crack the kitchen ceiling vent and one kitchen window
to provide for fresh air ventilation when the Cat heater is on
