Take glance at this site. I know you mentioned no room for wood but these new coal stoves take very little room and the "STOKERS" are near automatic. This isn't the sooty stinkey coal of yester year . 40 lb Bagged coal is about 5.00 a bag and last about 18-24 hours and puts out ALOT of heat. We grew up burning wood and this is sooo much better in many ways.
http://www.nepadigital.com/bb/index.php?sid=1483168d779ec67d91fcec2e2646e79a