The Buck Stove B1200 Dual Fuel Vent Free Gas Stove delivers 99.9% efficient home heating without the complexity of venting. Featuring a dual burner system that produces 25,000 BTUs and comfortably heats up to 1,100 Square Feet.A built-in thermostatic control and ODS safety system make the Buck Stove B1200 an easy-to-use and safe solution to heat your home.