Mr.Heater hunting buddy heater 12000 btu FEATURES-6,000 or 12,000BTU per hour-For use with propane gas-Heats up to 300 sq. ft.-Single control start knob-Hi-Low heat settings-Silent electronic ignition-Swivel regulators-Automatic low oxygen shut-off system (ODS)-Accidental tip-over safety shut-off-Connects to a 1 lb. cylinder-Connects to a 20 lb. cylinder with optional hose & filter-10.25"L x 15.50"W*THE USE OF UN-AUTHORIZED ACCESSORIES/ATTACHMENTS WITH THIS HEATER ARE EXPRESSLY PROHIBITED, MAY CAUSE SERIOUS INJURY, AND WILL VOID THE WARRANTY Other Features: 6,000 to 12,000 btu, quiet electonic ingnition, swivel regulator and single control, fold down handle, hi-low heat settings, certified, low oxygen safety shut off, runs off 1 lb cylinder, storage space for spare 1 lb cylinder, gloves, acc, runs approx 3.5 hrs on 1lb cylinder