The Mr. Heater Portable Big Buddy Propane Heater can heat areas up to 400 square feet and comes with an easy to control low, medium and high heat level dial. It features swivel regulators, single control, and large 4-position heat level control dial for adjusting even when wearing gloves. It is equipped with an automatic low oxygen shutoff system and an accidental tip-over safety shutoff for extra protection. Users can also hang the heater on the wall using its key-shaped rear mounting holes.