The original propane heater from Mr. Heater is great for all you hunting and sporting needs. The propane heater has adjustable heat controls allowing you to choose a low to high heat. With variable output the propane heater has an output of 8, 12, 14,000 BTU’s per hour. Ready to use the propane heater has a Piezo push-button ignitor and operates on a 5-20 pound propane tank (not included) that gives you up to 54 hours of maximum heating on one tank. Rest assured this heater also comes with a heater safety shutoff for your safety.