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SKU #: MXH1001

Mr. Heater Big Buddy 18,000 BTU Radiant Compact Propane Space Heater

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Mr. Heater Big Buddy 18,000 BTU Radiant Compact Propane Space Heater

The Mr. Heater Big Buddy 18,000 BTU Radiant Compact Propane Space Heater can effectively control and maintain a room’s temperature. It has an automatic safety tip-over protection shutoff, which helps converse energy as it cuts off before a space gets overheated. It has an easy ergonomic handle at the top, which lends it a portable quotient. This Big Buddy 18,000 BTU Radiant Compact Propane Space Heater from Mr. Heater is made from high quality materials. It is burnished with a red finish whereas the grille adorns a matte black finish. The compact propane space heater has a blower and air filter. The CSA B125.1 Certified space heater requires installation.


  • Ergonomic easy-carry handle
  • Low oxygen shutoff pilot safety system for indoor and outdoor use
  • Blower fan power on/off switch
  • Large 4-position heat level control knob with built-in piezo starter
  • Integrated hot air blower venting system
  • Attached swing-open doors with swivel-out mount for easy cylinder installation
  • Automatic low oxygen shutoff system
  • Accidental tip-over safety shutoff
  • Heats up to 400 sq. ft.
  • Connects directly to two 1 lb. disposable cylinders or to a 20 lb. cylinder with optional hose
  • CSA certified

Product Details:

  • Product Type: Radiant
  • BTU Output: 18000 BTUs
  • Application: Portable
  • Power Source: Propane
  • Maximum Coverage Area: 400 Square Feet
  • Outdoor Use: Yes
  • Installation Required: Yes
  • Product Warranty: 1 Year


  • Overall: 17.5" H x 10" W x 17" D
  • Overall Product Weight: 16lbs

Mr. Heater Big Buddy 18,000 BTU Radiant Compact Propane Space Heater

Weights & Dimensions

  • Overall: 17.5" H x 10" W x 17" D
  • Overall Product Weight: 16lbs


Product Type: RadiantFinish: Red
Grille Finish: Matte blackNumber of Items Included: 1
BTU Output: 18000 BTUsApplication: Portable
Installation Type: CompactBlower Included: Yes
Timer Included: NoRemote Included: No
Power Source: PropaneMaximum Coverage Area: 400 Square Feet
Air Filter Included: Yes
    Air Purifying: No
    Automatic Shutoff: Yes
    • Automatic Overheat Protection: Yes
    • Safety Tip-Over Protection: Yes
    Handle Included: Yes
    Indoor Use: YesOutdoor Use: Yes
    Country of Manufacture: China 


    Assembly Required: NoInstallation Required: Yes
    Additional Parts Required: No 


    Product Warranty: 1 Year 


    CSA B125.1 Certified: YesEnergy Star Compliant: No

    About the Manufacturer

    Mr. Heater's parent company, Enerco Group Inc., is a Cleveland, Ohio company. The business began as a side business venture for a large manufacturer of plastic extrusion equipment. At the time, Al Haire was an outside sales representative for Enerco's overhead radiant heaters. He saw great potential in the business, and when the original owners decided to spin off the Enerco business in 1982, Al bought the company.

    In 1986 Enerco launched Mr.Heater to bring portable radiant heaters to the consumer markets. Over the next 20 years the Mr.Heater product line has grown to be one of the most complete in the industry. The business grew… but they have never drifted from their roots and values.

    Today about 100 people work in their modern headquarters facility. This 150,000 square foot facility is our primary manufacturing and distribution center, and also houses our business offices and our engineering and quality departments.

    In additional to product innovation and quality manufacturing, Mr. Heater has built a reputation on after-sale support and sincere customer service. Every customer phone call and e-mail received is answered by a trained employee. From choosing a product, to maintenance procedures and parts… their team is there to support the people who support them!

    Mr. Heater Big Buddy 18,000 BTU Radiant Compact Propane Space Heater

    Questions & Answers (2)


    “Hi, do I need a regulator or is it already present on this unit?” asked by Julian

    "Hello Julian, there is already a regulator attached to the heater itself, so an additional one will not be needed." Tiffany from Wayfair


    “Hi, does this item make any noise?” asked by Claudia

    "Hi Claudia, it doesn't make much noise, and is virtually silent." James from Wayfair

    Still have questions about this product? We're here to help

    When you buy a Mr. Heater Big Buddy 18,000 BTU Radiant Compact Propane Space Heater online from Wayfair Supply, we make it as easy as possible for you to find out when your product will be delivered. You can check on a delivery estimate for the Mr. Heater Part #: MH18B here. If you have any questions about your purchase or any other Space Heaters product for sale our customer service representatives are available to help.Whether you just want to buy a Mr. Heater Big Buddy 18,000 BTU Radiant Compact Propane Space Heater or shop for your entire business, Wayfair Supply has everything you need.
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    Customer Reviews

    Tell Us What You Think!

    Tell us what you think about the Big Buddy 18,000 BTU Radiant Compact Propane Space Heater. It will help us provide you with better products in the future and help your fellow Wayfair shoppers make better purchases.

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    Average Overall Rating
    (based on 18 reviews)

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    Great stashable outdoor heat source

    from Santa Monica, CA – Verified Buyer

    Great for chilly nights on our roof deck. Nice to stash at foot level,out of the way and sight. It is a signicant source of outdoor heat at semi close range. Love that it is easily movable and easy to put away when not in use. Glad to have found it!

    Was this helpful? Yes1 No0

    Awesome Space Heater!

    from VA – Verified Buyer

    This space heater is awesome! I am remolding an older home and I bought this to use until I upgrade my heating unit, and it works great! It is very easy to use as well. This is something I would recommend to others.

    Was this helpful? Yes0 No0

    Great for RV

    from NV – Verified Buyer– Top 500 Reviewer

    If you fulltime in an RV, you know about cold days & nights. Maybe you want to warm the bedroom before showering, or maybe you want to warm your tootsies while watching DWTS. This Portable Buddy will do the trick for short bursts of heat.

    Was this helpful? Yes1 No0

    Great product

    from Seattle – Verified Buyer

    I love this little heater. I will probably purchase another! Pros: Easy to use, and does exactly what it is suposed to do.

    Was this helpful? Yes0 No0

    Very portable and does a very good job

    from Morrow, GA – Verified Buyer– Top 5 Reviewer

    This thing could heat up an entire gym (not really but you get the point). The best part is that you can keep it in the trunk of your car or even a backpack.

    Was this helpful? Yes0 No0

    Mr. Heater Big Buddy

    from Murfreesboro, TN – Verified Buyer

    Love this so much. Lightweight and portable. Kept us warm while selling Girl Scout cookies outside in February!! Highly recommend !

    Was this helpful? Yes1 No0

    great heater

    from winston salem, NC – Verified Buyer

    love this heater, heats a good size room easily, easy to use, must get the long hose to go with it to use a large propane tank

    Was this helpful? Yes1 No0


    from Fort Wayne, IN

    Great to have if you ever have to go without heat. This model in particular really kicks out the heat. We live in a drafty old farm house & this big buddy heats up the whole downstairs in a matter of 10 minutes. The little propane tanks are reasonably priced and last a long time. The only downer for this product, if you choose to hook up a cylinder tank, it can't be inside because of the fumes. I highly recommend this product. What if you had to go without your furnace?

    Was this helpful? Yes4 No0

    Great Product

    from Dallas, Tx. – Verified Buyer

    I use the heater on the deck and in the garage. Love the safety features.

    Was this helpful? Yes2 No0

    from Oklahoma – Verified Buyer

    Was this helpful? Yes0 No0


    OUR SKU # MXH1001

    Big Buddy 18,000 BTU Radiant Compact Propane Space Heater is also sometimes listed under the following manufacturer numbers: 373-MH18B