Mr. Heater MH18B Big Buddy Portable Propane Heater – 18,000 BTU Radiant Heat for Indoor/Outdoor Use

Emits 4 .000 . 9 .000 or 18 .000 BTU/hr radiant heat

Designed and approved for indoor and outdoor use

Heats up to approximately 400 square feet

3 temperature settings: low . medium . and high

Connects to two 1 lb. cylinders

Swivel regulators

Automatic low Oxygen Shut-Off System (ODS)

Accidental tip-over safety shut-offZ