The Most Popular Portable Propane Heater in North America. This patented radiant 4,000-18,000 BTU Liquid Propane heater connects directly to two 1 lb. cylinders and is the perfect solution for heating up to 450 sq. ft. Two swivel regulators give you the ability to adapt usage from disposable cylinders to a remote gas supply with the purchase of a single hose and filter. To light the unit, simply push and rotate the knob. The built in Piezo sparking mechanism will take care of the rest. With the Oxygen Depletion Sensor (ODS) and accidental tip-over safety shut-off, you can be sure that you will enjoy years of comfortable outdoor safe heat.

• 4,000, 9,000, or 18,000 BTU per hour
• For use with propane gas
• Heats up to 450 sq. ft.
• Single control start knob
• Hi-Med-Low heat settings
• Swivel regulators
• Automatic low oxygen shut-off system (ODS)
• Accidental tip-over safety shut-off
• Connects to two 1 lb. cylinders
• Connects to a 20 lb. cylinder with optional hose
• The distinctive RED Mr. Heater Buddy that has delivered comfort and safety for decades.

* The use of un-authorized accessories/attachments with this heater are expressly prohibited, may cause serious injury, and will void the warranty
* Due to recent governmental changes to import tariffs, Mr. Heater has removed the fan on some models of the Mr. Heater Big Buddy (MH18B)