Space Heather MH18B Mr. Heater Big Buddy 18000 BTU Radiant Propane

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