I don't have a heater at this moment, but I have been looking at a few lately. Oddly enough yesterday morning I had a quick nap in the tent after I set it up. With the unit sealed up and just my body heat (and the dogs) the tent seemed to warm up quite quickly.
Nice. I have a mr heater ceramic heater. Just the single one for space concerns and it works really good. It's the only one I know of that's safe to run all night inside of a tent. At least with using propane.
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