Best example I can give is the following. Several years ago in December I had to drive to the Reno dog hospital from Susanville (between major snow storms); my Aust. Shep broke her leg (long story short -they found she had bone cancer and they had to cut off her leg). The temp was in the low one digits, the snow on my roof frooze a couple of inches thick and i had to chip it off with a trowel and shovel and use deicer spray, before i could raise it---it was cold and i had no arctic pack back then. I stayed in the Bordertown RV park and HW 395 was a mass of black ice and there were wrecks everywhere and i had to drive to the other end of town-as i say it was cold out. Okay, the first night i stayed, I set the therm temp for 70 or so and it kept the camper nice and comfortable all night long-of course i got very little sleep because it kept coming on every hour or so. The gauge said It used about a half a tank of propane.
I am one of those who believe in the toasty toes-cold nose theory of sleeping-and except for the above event , hardly ever leave the thermo on all night-just crank the stock heater up before i rack out, warm the camper up, crawl into the sleeping bag, and yes crack open the window so i have that cold air on my nose. You can get real warm real fast by sitting in front of the heater and on cold nights before bed, i either use the thermo or just hit the switch when it gets cold inside to keep things comfortable. On a cold morning while the coffee water boils i turn on the heater to warm up the camper. Getting a WAVE heater is on my list of things to think about and my arctic pack makes those real cold nights comfortabe and i use allot less propane. By the way, my dog lived for another seven months and we spent every moment of it WTW to her favorites places. That help?
Smoke