Mr. Heater Big Maxx Natural Gas Unit Heater 250,000 BTU with NG to LP Conversion Kit

  • SKU: SKU: F262500

    • $3,384.99
      Unit price per 

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    • 250,000 BTUs heat up to 8,400 sq ft
    • Efficient and effective forced air heat
    • Power exhaust allows for vertical or horizontal venting
    • Designed for right and left 6" vent pipe
    • Electrical and flue connections
    • Aluminized tubular heat exchanger
    • Spark ignition with self-diagnostic control
    • High temperature safety shut-off switch and gas safety shut-off flame sensor
    • Includes a natural gas to propane conversion kit
    • Ceiling-mounted forced air unit heater turns garages, barns, and workshops into heated workspaces


    The Mr. Heater Big Maxx 250,000 BTU unit heater will turn your garage or barn into a work space you can use all year round. Uses a built-in high-velocity electric fan to pull cool air in and across the heat exchanger, then forces warm, comfortable air out. Its low profile design requires only a 10 ft minimum ceiling height and 1 in. mounting clearance. Features a high-temperature safety shut-off, gas safety shut-off flame sensor, and an electric spark ignition with a self-diagnostic control module, to bring you peace of mind and years of comfortable, safe heat. Comes as natural gas and includes a propane conversion kit. Requires 120-Volt AC power and can be vented vertically or horizontally - please check local codes and restrictions. This heater offers all the operating versatility and safety you have come to expect from Mr. Heater.


    BTU 250,000
    Weight 180
    Heating Area (Sq. Ft.) 8,400
    Model MHU250NG
    Length 41.9
    Width 29.2
    Height 29.55
    Use Indoor Personal Heat
    Thermostat N/A
    Fuel Type Natural Gas w/ Propane Conversion
    Heat Type Forced Air
    Gas Safety Shut-off Yes
    High Limit Safety Shut-off (HLS) Yes
    Indoor Safe Yes
    Ignition Electronic


    3 Year Limited on Heater Parts; 10 Years Limited on Heat Exchanger


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