Mr. Heater Big Maxx Unit Heater 50,000 BTU/Hr.

  • SKU: SKU: F260550

    • $895.99
      Unit price per 

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    • 50,000 BTU per hour
    • For use with natural gas - Natural Gas to Liquid Propane conversion kit included
    • Heats up to 1,250 sq. ft.
    • Spark ignition features self-diagnostic control module
    • Includes 2 angle brackets for ceiling mount
    • Low Profile Design - Can be installed in low-ceiling buildings
    • Minimum 8 ft clearance from floor to base of heater required
    • 1/2in gas connection
    • Category 1 vertical, category 3 horizontal venting


    Turn your garage or barn into a work space you can use all year-round, with this safe quiet and reliable heat source.

    It uses a built-in electric high velocity fan to pull cool air into the rear of the heater, across a heat exchanger, then forcing warm air into the surrounding areas. These heaters only require 115V AC power and can be vented vertically or horizontally - please check local codes and restrictions.

    With a mounting clearance of only 1 inch, the supplied brackets, external access to power, and thermostat connections - installation is a cinch.

    With the Durable Spark ignition and robust factory standard self-diagnostic control module, we can offer a 3 year factory warranty on all parts and burners and a 10 year warranty on any defects in the heat exchanger.

    This heater offers the operating versatility and safety that you have come to expect from Mr. Heater.


    Show Download Tool No
    BTU per Hour 50,000
    Heating Area (Sq Ft) 1,250
    Electricity Required No
    Weight (Lbs) 70.00
    Model MHU50
    Oversized Yes
    Length 25.00
    Width 18.50
    Height 12.00
    Disclaimer No
    Use Residential Garages, Metal Buildings, Warehouses, Agricultural Building, Storage Buildings
    Warranty 3 year Limited on parts and burner, 10 year limited on heat exchanger
    Thermostat Yes
    Safety Tip-Over Switch No
    Fuel Type Natural Gas
    Heat Type Forced Air
    Oxygen Depletion Sensor (ODS) No
    High Limit Safety Shut-off (HLS) Yes
    Indoor Safe No
    Ignition Electronic
    Hose & Regulator Included No


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