Originally Posted by alageezer
If you're talking about a standard 1500 watt electric heater, I doubt very seriously it will run more than an hour or so off the batteries.
Something you might want to do is test your theory out at home before you try it for real.
How's this for winter camping?
Great photo! How cold did it get and what did you use for heat?
We will take a dry run this weekend to see how everything holds together. My primary concern is carbon-monoxide from our supplemental heat -- so we will keep windows cracked. Our first year ice fishing, the CO2 alarm went off and it was a huge scare. We learned the value of ventilation and now use 2 CO2 detectors.
Our heating plan is to run the primary furnace (12 volt and I think it's 20,0000 btu's) for much of the trip. We 'll supplement the heat with an electric heater when we run the generator. At night we would like to run the 12 volt propane furnace set on the lowest setting and a small Wave 3 heater.
Below is a photo from our last outing where it got a little chilly. We didn't have the generator for this trip so it was all on the 12,000 BTU heater (the camper was not a F/R product). Good times...