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Mr. Heater

Mr Heater 18,000 BTU Big Buddy Heater NF

  • Based on 5,649 reviews
Condition: New
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Availability: Only 2 left in stock, order soon!
Fulfilled by Al's Sporting Goods
Arrives May 23 – May 25
Order within 10 hours and 24 minutes
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Style: Space Heater


Features

  • Emits 4,000, 9,000 or 18,000 BTU/hr radiant heat
  • Designed and approved for indoor and outdoor use
  • Heats up to approximately 400 square feet
  • 3 temperature settings: low, medium, and high
  • The use of un-authorized accessories/attachments with this heater are expressly prohibited, may cause serious injury, and will void the warranty.

Description

Cold campsites and frozen lakes call for the warmth of a Big Buddy heater. For your next excursion, the Big Buddy will keep you comfortable with up to 18,000 BTU of heat. Swivel regulators make for easy setup; just screw on two 1-lb propane cylinders or connect to a 20-lb tank using Buddy accessories. The 450 square feet of coverage makes any ice shanty a sauna and any deck a sunroom. With the heaters’ registered Life Safety System you won’t sweat too much knowing the oxygen depletion sensor, thermal shut-down system, and tip-over switch are keeping you safe. For all of your indoor and outdoor adventures, the Big Buddy is there for you.

Brand: Mr. Heater


Special Feature: Low-Oxygen Safety Shutoff, Portable, Tip-Over Protection


Color: Black, Red


Form Factor: Cabinet


Indoor/Outdoor Usage: Indoor, Outdoor


Special Features: Low-Oxygen Safety Shutoff, Portable, Tip-Over Protection


Form Factor: Cabinet


Indoor Outdoor Usage: Indoor, Outdoor


Power Source: gas_powered


Heating Method: Radiant


Recommended Uses For Product: Desk, Garage, Garden, Greenhouse, Home, Office, Patio


Mounting Type: Floor Mount


Room Type: Bedroom, Dining Room, Home Office, Living Room, Study Room


Heating Coverage: 400 square feet


Heating Element: Radiant


Heat Output: 18000 British Thermal Units


Fuel Type: Propane


Number of Speeds: 3


Min Temperature Setting: 40 Degrees Fahrenheit


Max Temperature Setting: 90 Degrees Fahrenheit


Color: Black, Red


Brand Name: Mr. Heater


Model Number: MH18B


Warranty Description: 3 Year Limited


UPC: 089301004825


Global Trade Identification Number: 25


Part Number: F274805


Unit Count: 1.0 Count


Item Type Name: big buddy heater


Manufacturer: Enerco Group Inc.


Included Components: Heater


Item Dimensions D x W x H: 16.7"D x 11.2"W x 12"H


Item Weight: 13 Pounds


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 23 – May 25

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Mr. Heater Big Buddy Heater, 4,000 to 18,000 BTU Propane Heater
Color: Black
I purchased this product because despite running two very efficient and very expensive heat pumps, my home was always cold. Additionally, my electric bill was becoming more and more outrageous. I was hopeful that the Mr. Heater Big Buddy Heater would at least be able to heat up my bedroom and also be able to heat up the master bathroom for showers and such. That said, I have been extraordinarily happy with the performance of the Big Buddy Heater. The heat output can be tailored to the exact needs of the moment, there are no unpleasant smells produced by the heater, and the fact that it puts out infrared heat makes it very pleasant to be near when the room is chilly. The heater is very easy to start with its piezo igniter and the heat produced is infinitely adjustable from low (4,000 BTU) to high (18,000 BTU). While the model I purchased did not come with the built-in heat distribution fan, I was able to add the factory fan with a purchase through Amazon (Mr. Heater Big Buddy Heater Back Cover Fan (E78404) (www.amazon.com/gp/product/B09S16JL8G)). I would recommend that everyone purchase the new Big Buddy Pro model that does come with the factory built-in fan. I use the Mr. Heater 6-Volt Power Adapter to power my heater's newly added fan (www.amazon.com/gp/product/B000HE6OAE). I also use the Mr. Heater 12' Hose with Regulator & Quick Disconnect (F271803) (www.amazon.com/12ft-Big-Buddy-Hose-Regulator/dp/B000UC7966) to supply low-pressure propane to my heater. I have found the Big Buddy Heater to be very efficient in its use of propane. It has saved me a great deal of money by not having to use my heat pumps to stay warm. In summary, I have been overwhelmingly happy with my Mr. Heater Big Buddy Heater purchase. I have had no problems of any kind with the product. Further, I have been so happy with the performance of the heater that I have purchased a second one. Mr. Heater should be very proud of this product. ... show more
Reviewed in the United States on April 6, 2024 by J. Harris
    • Warm yourself by this fire!
Color: Black
This is an amazing heater! It arrived packaged nicely with no issues. It was easy to unbox and easy to follow the instructions. Installed the tanks and BOOM, I finally had warmth in my fully tiled ensuite! (You know how cold tiles get when it's cold outside and you don't have floor heaters built in!) As a matter of fact, I have to set this to the lower setting because it does such a great job of warming things up. I use it for the ensuite, the deck, and the garage and it works fabulously (much better than the other heaters!) Just put it in your basket, you won't be dissapointed. ... show more
Reviewed in the United States on March 9, 2025 by Dolly Ihli
    • Great Heater! ... needs info. re: what hose to use, for 20 lb. tank.
Color: Black
GREAT HEATER - and far less expensive to use, than the fuel for the big propane tank, that is “delivered by” the Propane Co. It also works MUCH BETTER than my propane heater in the living room! .... which is cast iron, and looks like a wood stove. This gives off MUCH MORE HEAT. And, it heats very quickly, and “without the noisy blower” that my living room heater needs to be even minimally effective.... but which is nerve wracking! This is a surprise, because I have lived with gas stoves that look like wood stoves, before, but this one at home, radiates very little. So this Mr Buddy Heater, was a god-send last winter! Issue: The hose, needed to connect this heater to the 20 lb. propane tank, is NOT specified in the data here; otherwise I would have ordered it “with the heater”. I ordered a hose from Amazon, that says it is for these types of heaters..... BUT now I see that this brand (Mr Heater Buddy) says - in its MANUAL - that certain “model numbers” are what they use with the heater. SOooo, almost a month later, I am still trying to figure out if I can use the hose I got from Amazon. The Amazon hose, “GasSaf” has no model number; it looks just like the picture of Mr Heater Buddy’s for this use.... BUT I will need to now, call the Mr Heater Buddy people tomorrow - to find out if I can use the one I bought - or IF I need to return it, and buy one from them. Meanwhile it has gotten much colder ... and I’d really like to use this heater. This whole step could have been easy IF they had a note about it in their data on the Amazon site. The Mr Heater Buddy, information needs to state what hose to use. And, it is a great item! ... show more
Reviewed in the United States on December 7, 2020 by Shastina Free
    • Great Little Heater
Color: Black
A good friend of mine used this to heat his small home enough to keep pipes from freezing when his furnace went out in the middle of winter. Since then we have used his regularly hunting in a 10x14 canvas tent. My tent does have unzippable vents in both eaves, and with the oxygen-depletion sensor on this unit it can be safely used in a tent or camper with proper fresh air. However, as a safety precaution, I always take propane and carbon-monoxide detectors with us out of paranoia...you can find these at any RV Supply store... I've also seen questions asked about the 16oz/1lb propane tanks...It absolutely can use the 1lb propane tanks--in fact, it is designed to use two of them simultaneously (that's what the bubble out's on both sides are for, to each hold 1 tank). However, while I used it that way the first time, any more, I purchased the separate hose so I can hook it up to a 30lb tank (many use a 20lb tank as well), and it works flawlessly either way. I will say this about the 1lb tanks though, as they get low, their pressure isn't well regulated so you get a lot of popping and jumping in the flame across the heating surface (kind of annoying if you are a light sleeper) and in my experience, this continues for about 15+ minutes until the smaller tanks are finally depleted. This little heater has been such a staple in our hunting equipment that I recently purchased my own as a backup unit for our hunting trips. These are definitely worth the money. Also, while they are no longer adding the fan to the unit, we never used the fan on my hunting buddies heater, as it required batteries, and the unit heated our 10x14 tent area well enough without the fan...so don't let the fact that the fan is no longer a feature in the unit dissuade you from purchasing, as this is a solid, versatile heater. ... show more
Reviewed in the United States on October 16, 2019 by Brad

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