Residential patio heater with commercial quality - the Endless Summer 9209SP Deluxe Residential Outdoor Patio Heater helps you stretch the season on your deck or patio. Outdoor patio heater providing 40,000 BTUs of heat, a durable stainless steel burner, and premium construction. This patio heater operates using a propane grill cylinder and is equipped with automatic safety switch that immediately shuts the unit off if it is tilted. Endless Summer ES-9209SP Outdoor Patio Heater is capable of heating an area equivalent to a 20′ circle. This heater is designed for the rigors of outdoor use. With an advanced multi-spark ignition system, the Endless Summer 9209SP Patio Heater merges commercial grade features, with simple residential mechanisms to effectively produce radiant heating. Has the option of getting a cover to protect and keep your heater clean!