The Sunglo Natural Gas Permanent Patio Heater - Black is very popular with restaurants, hotels, country clubs and many other commercial grade applications. Offering 50,000 BTU's of warmth it is sure to keep your guests warm. Made of stainless steel with corrosion resistant material and coating it is built to last and made in the USA. For extra safety, this heater has 100% safety control to ensure maximum peace of mind. This heater is easy to control with a 24-Volt control that allows for connection to thermostat or ON/OFF switch for easy fingertip operation (24 Volt control includes 24 volt transformer). Not only is this heater commercial grade it has a sleek design and is CSA design certified.