Yes, propane only. The 12v also operates the thermostat. So while the furnace heats only with propane, it requires 12v to run. If you lose power to your 12v system, there’s no heat, no AC, no fridge (which also requires 12v to operate the controls), etc.
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Jeff & Sandi (and Teddy - 7lb Schnorkie)
2018 Montana HC 305RL / HW Progressive EMS
2015 RAM 3500 Laramie Longhorn Crew Cab 4x4 DRW / Demco Recon Hitch on RAM Puck Ball
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