Regarding my second post. For primitive site camping, what is the advantage to having a gas furnace if a generator is required for the 12 volt battery? With a generator, it would seem I might as well use the electric heating unit that comes with the unit.
Thanks for any clarifications on this issue!
Sorry if you were a bit disillusioned or misinformed about some of the technical aspects of wanting to "camp off the grid," but the propane furnace needs control power to operate, and that comes from the battery if you don't have shore power available to run it from the converter. Sooner or later, (more likely sooner,) you will need to recharge the battery due to the current that has been drained just to run the furnace on propane. Same thing with the fridge, as it also needs 12 vdc to work, even on propane. And don't forget, you also have several other "parasitic" loads like the smoke detector and CO detector, and maybe a few more depending on your options, that are on all the time too. A gen-set isn't something you have to run all day and night, just for a few hours a day to pump up the charge on your battery. Use it to your advantage, and if you have need to use any other electric appliances, do it during the time you are recharging. It isn't all that bad.
As for using the electric heating unit in the A/C unit, you will still need 120 vac to run it, so in either case you will need to have shore power or a generator. An alternative if you are only interested in recharging the battery would be investing in a solar panel system to supplement your 12 vdc power needs. I gave up "tent camping" years ago. I'm too old for that anymore. Besides, I bought the trailer with all the conveniences because I like having them, otherwise I could have saved a whole lot of money and just bought a tent.
If you expect to truly live "off the grid" without using any battery power, I guess you need to turn everything off, and bring lots of firewood and a large Ice cooler to keep your food cold. Most of us got tired of that a long time ago, which is why we bought trailers with all the amenities to be comfortable, but to each his own.
Edited by Euphoria, 10 January 2017 - 01:16 PM.