May I suggest Alcohol. Can be burned indoors with very little ventilation, then look into getting a alcohol stove, very easy to operate and will serve the purposes for which you outlined. may I recommend this site.
http://zenstoves.net/. there are a couple of commercial manufactures of alcohol stove on the market, Tania and Virgo coming to mind.
http://www.trangia.se/english/http://www.vargooutdoors.com/index.htmlThe fuel can be bought at Home depot,service Stations,paint stores and Wal-Mart to name a few.