This Double Tank Top Heater is constructed from steel and aluminum that makes it sturdy and durable. The heater generates 15,800 BTUs of heat from each burner that can be variable controlled and sits right on top of a 20lb propane tank. It features an anti-tilt switch for added safety. It is easily installed and portable for your convenience. This is the perfect way to easily bring the heat where ever you go. This Double Tank Top Heater from Heaters requires some assembly before it can be used and is CSA certified.