Simply put, an RV furnace is a main source of heat that uses both propane and electricity. Propane heats the furnace system while electricity enables the fan to move. Working with such a forced-air system is not at all complex, as you just need some basic things like a thermostat, a blower motor, and some ductwork.

Do RV heaters work without electricity?

2. Use a Portable Space Heater in your RV. One of the easiest ways to heat a camper without electricity is to use a portable propane heater. These small heaters can efficiently heat a space without needing to be plugged in because they run off propane gas.

How does a RV gas heater work?

Forced Air RV Furnace. … When the thermostat is set higher than the temperature of the RV, the blower motor is activated and the heater is switched on. Propane burns to create hot air and this air is then blown through ducts throughout the system. Electricity is needed to turn on the system and run the fans.