(Q) How long will my tank last when using your stove?

(A) Our stoves are build to be very powerful cookers but at the same time, they do a very good job of conserving energy. Usually, a 30,000 btu burner will burn about a pound of propane per hour of use. So a two burner stove would last about 15 to 20 hours on a 20 lb tank depending on altitude and what level you cook at. A three burner would be about 15 hours when using all the burners on Medium. It is very common for something that cooks on occasion on the patio or on family trips to have the same propane tank all summer long.