Mr Heater MH18B Big Buddy F274800
  • Mh18b_02

Mr. Heater Big Buddy Indoor/Outdoor Heater

Description: (read more)

4-18k BTU Indoor/Outdoor Propane Heater

Are you looking for an indoor/outdoor radiant portable heater that will heat up to 400 sq. feet for 220 hours?  The MH18B from is exactly what you are looking for. This Big Buddy heater can be used in a variety of applications such as emergency heat, workshops, job sites, construction trailers, garages, hunting blinds, ice fishing, patios and much more.  The Big Buddy indoor and outdoor heater, F274800, is America’s most popular brand of portable heater and you can get yours today at

  • The above propane heater can not be used in California or Canada in the home.
  •  NOTE: A different model required for Massachusetts and Canada due to local regulations.  Please look at F274865 for this heater.
  • Designed and approved for emergency indoor and outdoor use
  • Heats up to 400 sq. feet for up to 220 hours
  • CSA certified for indoor use
  • Built in low-oxygen shutoff sensor and tip-over switch
  • Blower fan power on/off switch
  • Handle for easy carrying.

This heater qualifies for free shipping at


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This product is currently on backorder. If you're interested in purchasing this product, please contact us at 1.877.796.8884 or email us at Thank you!

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  • Product Information:
    • Heats up to 400 sq. feet for up to 220 Hours
    • CSA Certfied for Indoor Use
    • Built-in Low Oxygen Shutoff Sensor and Tip-over Switch
    • Blower Fan power On/Off Switch
    • Easy Carry Handle
    • Connects directly to two 1 lb. disposable cylinders or to a 20 lb. cylinder with optional hose (F271803)
  • Weight: 20.0 lbs.
  • Color: Black
  • Brand: Mr. Heater
  • Condition: New

Manuals and PDF Downloads:

  • pdf/78438CAL MH18B_eng_rev_a - View Now

Alternate Part Numbers:

089301748009 , MH18B , F274800

Parts Breakdown Model:
MH18B - MH18B 8K-28k BTU Heater
  • Radiant Heater
  • Owners Manual

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July 18, 2014 - Dean Edney wrote:

5 I can't say enough good things about this company. This heater came FAST with FREE UPS SHIPPING, EXCELLENT PACKAGING, NO SALES TAX and THE BEST PRICE you can find. If you have any questions you can call and talk to a real person. I am so glad I found this company.

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