Its propane fired, there are no electric heater elements. The blower and electronic ignition are 12VDC. We keep a small electric space heater with us to use when we come across a site with hookups. Saves on the propane and I find it to be much quieter than the furnace.
2014 Jayco Jayflight Swift SLX 184BH Baja
2016 Toyota Tundra DC 5.7L
Nights Camped in 2015 - 24
Nights Camped in 2016 - 9