You must be from Florida.
I don't know about that particular tent but there will be several answers to each question. They can be damp but usually not. They can be heated ok but they won't hold any heat when the heater is turned off or the stove burns out. If you use a propane heater, it will leave lots of condensation on the tent. A good wood stove will keep it nice and dry.
Since you're talking AL, that's a lot different from ID or MT. How cold does it get there during hunting season? If you just need a heater to take the chill off, a Big Buddy heater will work fine. If it's below freezing, I highly recommend a wood stove. It'll be a lot more comfortable although it's more work to keep it fed.
