I have finally found that Easy Heat (www.hollowick.com) a canned fuel restuarants use for chafing dishes, burns non toxic,without venting and is virtually odor free.I bought a case of 48 cans at a Rest. Supply store for 37$! The flame is yellow & adjustable although not as high as gel alcohol fuels. It is almost as hot.Wicks support the combustion of diethylene -glycol in the cans. The cans are lower than the gel cans so you need to prop them higher (on a metal tray or empty cans)& the effect is almost as good without the stink.