I have spent many a night, and day, cold weather camping in my Roamin Chariot (RC) camper. When I write cold, I mean temps below -10 degrees (Fahrenheit).
The RC doesn’t have a installed heater. When ‘off the grid’ I use a Mr. Heater Portable Buddy that uses propane fuel and puts out 18,000 BTUs. My heater is many years old, 15 or 16 years I think, and is actually a ‘Buddy’ sold under the Coleman nameplate.
Mr. Heater is used only when I am awake as it is an open flame heater and the RC doesn’t have a CO sensor. Mr. Heater quickly gets the camper nice and comfy … though the floor of the camper stays cold and when it is really cold out I will wear good warm socks. Once the camper is warm I set Mr. Heater to his lowest setting.
When 110V is available I use a heater that doesn’t put out as may BTU’s (about 2500). The heater is a Vornado model VH101. This little hot air generator has done well in ‘taking the edge off’ when it is chilly and if the outside temp is about 20 degrees the heater will keep the camper just above freezing. Why so little a heater? The RC doesn’t have a 110V electrical system, so I am limited in how much power run safely though an extension cord.
I will sleep when using the electric heater is operating as the camper has a smoke detector.
Keeping warm while sleeping, as Mr. Heater is turned off, requires good bedding. I use a quilt and when it really gets cold a 0 degree rated sleeping bag laid over the quilt. On really cold nights I wear flannel PJ pants, a warm shirt and heavy socks. Snuggled down for the night I am very comfortable.
The new Outfitter Caribou Lite has a built in 16,000 BTU forced air propane heater with a thermostat. This will be very nice to keep the camper comfortable even on the coldest nights. When staying in a location with 110V I will heat up the camper with the forced air and then use the Vornado to keep the camper comfortable (the Caribou is also wired for 110V). Even though the electric heater only puts out fraction of forced air heater, this solution will result in less propane use as the 110V only needs to maintain the camper’s temperature.