There was a group a few years ago camped next to us elk hunting and they had two of them in a huge wall tent.  He sais he had used the same barrel for many a years and have nver had any issues and they give off great heat.

Before going to all that trouble and having to find or cut wood I would just buy a second propane heater and just make sure you have proper ventilation and a carbon monoxide detector as a safety precaution.  That's what I use in my camper and have never had any problems out in Wyoming up to about 8,000' elevation for the last 13 years.

That can and will happen with those type of hookups with hose attachments.  I have used what we are talking about down into the single digits many times and with the direct hookups those heaters have right into the bottle valve I've never had a problem.  I did have one freezeup in a long line under my camper going to my stove one morning and it took care of itself as it warmed up during the day, but that's about it in all the years I've been out to Wyoming.  They do make smaller wood stoves that fold right up when you're traveling and the vent pipes nest together for easy storage.  I know those are available through Cabelas, but I don't know whether one would heat a big tent like he's talking about though.

I have 14' x 16' tent, i use a 30,000 to 80,000 btu propane heater in it, i have been useing it for about 7 years now, it work great, i bought it at Northern Tool for about a $100.00                         I think it is called a covection heater.

Kevin

Hey bucky!  I'm just a shout away from you in Allegan!!!

I made one with TWO barrels once. One on top of the other, and the top one is just a smoke chamber. You can get a kit for this type as well. It worked great.

I'm gonna get a lightwieght GI sardine can for backpack  camping. Had one before, and it really worked well and didn't wiegh much. But dirty!

All you guys, regardless of what you use, make sure it vents outside properly. Don't use anything that is supposedly "ventless".