We spent out two weeks out on our trial run in St George and Mesquite with temperatures around 32 to 37 deg. at night and we used three tanks 7.5 gal,
In Jan we headed south for the winter Nev, Az, and Ca. our first ten days in Nev. I used a couple of tanks 7.5 gal .We had an electric space heater, Fireplace and used heater in the morning.
In Arizona in a week I went through about four tanks the temps were cold at night and cool in day, we were dry camping and I using a 55K LPG Onan generator, Furnace and our coach had a electric fireplace I think it’s about 15 Kw. We were having breaker switch problems first on the site power then the generator breakers 20 AMP were braking figured out the amps and we were at some times 33 amps as close as I could figure.
In Quartzite, Az. I purchased a Wave 8 LPG catalytic heater I think about 10,000 BTU three setting that unit really works well, and cut down on our propane use.
Hope this give you some insight on what we have experienced in 2 1/2 months but remember if you have and use all these products you’ll have to pay to play.
Sonny