Giantex 41,000 BTU Outdoor Heaters for Patio - Propane Patio Heater, Outside Space Heater with Protective CoverThis outdoor heater provides you with a steady and comfortable warmth of 41,000 BTU, which can warm up to 13 feet in diameter. A side door gives you easy access to the 20 lb. propane tank (not included), making it easy to change it out as needed. The outdoor propane heater can provide you and your family with a comfortable temperature for up to 10 hours. This patio propane heater with CSA certification, uses a reliable ignition system for quick, easy