4,000- to 18,000-BTU radiant heater for spaces up to 450 square feet. Approved for indoor/outdoor use; clean-burning; nearly 100-percent efficient

When operating the heater at altitudes over 7,000 FT above sea level the heater may shut off. Maximum Hours Of Operation- 220.0

Auto shut-off if tipped over, if pilot light goes out, or if detects low oxygen levels

Low, medium and high heat level control knob for steady temperatures; connects to propane tank (not included). Note- Due to recent governmental changes to import tariffs, Mr. Heater has removed the fan on some models of the Mr. Heater Big Buddy (MH18B).

THE USE OF UN-AUTHORIZED ACCESSORIES/ATTACHMENTS WITH THIS HEATER ARE EXPRESSLY PROHIBITED, MAY CAUSE SERIOUS INJURY, AND WILL VOID THE WARRANTY. › See more product details