This 91-inch tall commercial outdoor patio heater features a quartz glass heating tube. 41,000 BTU's of heat create a cozy atmosphere in your outdoor area, allowing your family or guests to enjoy a pleasant evening any time of year. Patio Lane offers this commercial grade outdoor glass patio heater which features an anti-tilt device as well as wheels, allowing easy mobility to relocate anywhere on the patio. This outdoor commercial heater runs on a 20 lb. propane tank (not included).