Portable Propane Patio Heater, 9000 BTU
One hour on high is the figure that defines this heater. A 1 lb cylinder at 9,000 BTU is gone before a football game finishes, and three hours on the 4,500 setting is the realistic way to use it: a tent porch at dawn, a greenhouse during a frost warning, a garage bench on a Saturday morning. Two hundred square feet is a single-car garage or a small patio corner, and the oxygen depletion sensor is what makes the enclosed version of that acceptable.







