Dixie_Rebel,
My group hunted out of a 14x17 canvas wall tent here in Virginia for many years and we enjoyed the time there camping with the kids and grandkids. Now the one we used had a sewn-in floor and it was a pain in the assss to put up but as "1minute" posted a tent without a floor will be very hard to keep the critters out of. My vision of Alabama is that it is infested with critters, from snakes ( I hate snakes) to alligators, so if that is a concern to you a sewn-in floor is a good idea. Just be aware of how difficult they are to put up.
As far as heat a wood stove works best because as others have mentioned the condensation from gas heaters is a problem. All tent will be warmer than you want when wood stove is burning and cold shortly after the fire dies. I am sure the climate in Alabama is warmer than here in Virginia so I don't know how much of a problem heat would be.
