Replying to the question about wood stoves. I used a homemade stove, made from a discarded water heater, for 20 years. I posted the build as Shutterbugger on instructables.com. or http://www.instructables.com/id/Convert-a-Hot-Water-Heater-Into-a-Wood-Stove/
These require collecting & cutting wood, dealing with ashes, and chimney cleaning.
The local government and neighbors don’t like these stoves. They will complain to the fire department and claim your stove is illegal. Any insurance company will also object to it.