This is one of my favorite items when it comes to being prepared for a cold weather power outage. Not only is it one of those cool survival items, it's great to use when working in the shop or attending a sporting event.

Mr. Heater
Big Buddy

Portable Propane Heater

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  • 4,000- to 18,000-BTU radiant heater for spaces up to 300 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.
  • 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)
  • THE USE OF UN-AUTHORIZED ACCESSORIES/ATTACHMENTS WITH THIS HEATER ARE EXPRESSLY PROHIBITED, MAY CAUSE SERIOUS INJURY, AND WILL VOID THE WARRANTY.

Mr. Heater Big Buddy Features

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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 enclosed spaces like cabins up to 450 sq. ft.


An integrated fan increases the heating capacity of this unit, blending radiant and convection style heat to give you the best of both worlds. 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 indoor safe heat.


*THIS PRODUCT CAN NOT BE SOLD TO CANADA AND MASSACHUSETTS*

**Please note when operating the heater at altitudes over 7,000 FT above sea level the heater may shut off.**

NOTE for Massachusetts and Canada:

The standard Big Buddy (MH18B) is not approved to be sold in these areas. If you are in Massachusetts or Canada, you must purchase the approved version (F274865-Massachusetts/Canada).

Mr. Heater MH18B, Portable Propane Heater

High-pressure gas squeezes rubber as it passes through most hoses, and can occasionally pull some of the oils and plasticizers out during these periods of high pressure. Those contaminates will travel with the flow of propane and land somewhere inside the heater, slowly building up over time and causing gas flow problems once the buildup becomes large enough.

Do I need a fuel filter with my Buddy heater when connected to a 20lb tank?

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Mr.Heater Hose Options

High Pressure

NO FILTER NEEDED

NO FILTER NEEDED

Low Pressure / For RVs

NO FILTER NEEDED

Low Pressure
Quick Connect w/ Regulator

FILTER NEEDED

High Pressure

Mr.Heater Accessories

Also...

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