Product Description
The Big Buddy® Portable Heater MH18B by Mr. Heater is a powerful and dependable propane radiant heater designed to provide efficient warmth for spaces up to approximately 450 square feet. Offering three heat settings—4,000 BTU (Low), 9,000 BTU (Medium), and 18,000 BTU (High)—this unit delivers flexible heat output for a variety of environments. Perfect for use in garages, workshops, cabins, tents, or as an emergency backup heat source, the MH18B combines strength, safety, and simplicity. Built with rugged materials and advanced safety features, it’s the trusted portable heating solution for both indoor and outdoor applications.
Key Features
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Adjustable Heat Output: Choose from 4,000, 9,000, or 18,000 BTU per hour to match your comfort level and space size.
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Large Heating Capacity: Effectively heats spaces up to 450 sq. ft., ideal for workshops, garages, or medium-sized rooms.
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Dual Fuel Compatibility: Operates with two 1-lb propane cylinders or connects to a 20-lb propane tank using an optional hose for extended use.
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Easy Ignition System: Built-in Piezo ignition allows quick, reliable lighting with a single control knob.
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Safety-First Design: Features an Oxygen Depletion Sensor (ODS) and automatic tip-over shut-off switch for safe operation.
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Durable and Portable: Rugged construction with convenient carry handle for mobility and long-term use.
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Swivel Regulators: Simplify connection and fuel changes for ease of setup.
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Indoor/Outdoor Versatility: Designed for use in approved indoor spaces or outdoor environments like campsites and job sites.
Specifications
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Model: MH18B
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Heat Output: 4,000 / 9,000 / 18,000 BTU per hour
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Heating Area: Up to approximately 450 square feet
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Fuel Type: Propane
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Fuel Connection: Two 1-lb propane cylinders or one 20-lb tank (with optional hose kit)
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Dimensions: Approximately 19 in L × 12 in W × 12 in H
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Weight: Approximately 17 lb
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Maximum Elevation: Operates effectively up to 7,000 ft above sea level
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Warranty: 1-Year Limited Manufacturer Warranty
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Certifications: Indoor safe in the U.S. (except Massachusetts); outdoor use only in Massachusetts and Canada
