Mr.Heater "little buddy" heater 3800 btu (indoor safe) FEATURES-3,800 BTU per hour-For use with propane gas-Heats up to 95 sq. ft.-One button ignition on function-8" round stain uses little floor space-Accidental tip-over safety shut-off-Automatic low oxygen shut-off system (ODS)-Connects directly to one 1 lb. disposable propane cylinder-Quite, clean, odor-free operation-5.6 hour run time-Piezo ignition-Radiant heat-12"L x 9.75"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: One button ignition/on function, tip-over safety shut off, 8" round stand uses little floor space, low oxygen safety shut off system heats up to 95 sq.Ft., connects directly to 1 lb disposable propane cylinder, runs approx.5.6 hours on 1 lb cylinder, certified