Just bought a Pioneer RG22 and try using the heater. It ran all night off and on I had it set at 63 and outside was 36 by morning I had used 5 gallons of propane. Yes the trailer was not cold but I barely could feel any air coming out of the floor ducts and it didn’t feel very warm actually cool. I have an appointment to have it looked at but need some info from you guys, am I thinking right that 5 gallons of propane is ridiculous and there has to be something wrong . My old toy hauler the propane would last a week in the same conditions.