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Mr. Heater

Mr. Heater 18,000 BTU Big Buddy Pro Series Portable Propane Heater

  • Based on 3,286 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, Jul 21
Order within 8 hours and 7 minutes
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Color: Red


Features

  • 4,000- to 18,000-BTU radiant heater for spaces up to 450 square feet. Approved for indoor/outdoor use; clean-burning; nearly 100-percent efficient
  • When operating the heater at altitudes over 7,000 FT above sea level the heater may shut off. Maximum Hours Of Operation- 220.0
  • Auto shut-off if tipped over, if pilot light goes out, or if detects low oxygen levels
  • Low, medium and high heat level control knob for steady temperatures; connects to propane tank (not included). Note- Due to recent governmental changes to import tariffs, Mr. Heater has removed the fan on some models of the Mr. Heater Big Buddy (MH18B).
  • THE USE OF UN-AUTHORIZED ACCESSORIES/ATTACHMENTS WITH THIS HEATER ARE EXPRESSLY PROHIBITED, MAY CAUSE SERIOUS INJURY, AND WILL VOID THE WARRANTY.

Description

The Most Popular Portable Propane Heater in North America. This patented radiant 4,000-18,000 BTU Liquid Propane heater connects directly to two 1 lb. cylinders and is the perfect solution for heating enclosed spaces like cabins up to 450 sq. ft. An integrated fan increases the heating capacity of this unit, blending radiant and convection style heat to give you the best of both worlds. Two swivel regulators give you the ability to adapt usage from disposable cylinders to a remote gas supply with the purchase of a single hose and filter. To light the unit, simply push and rotate the knob. The built in Piezo sparking mechanism will take care of the rest. With the Oxygen Depletion Sensor (ODS) and accidental tip-over safety shut-off, you can be sure that you will enjoy years of comfortable indoor safe heat.WE ARE NOT ABLE TO SELL THIS PRODUCT TO CANADA AND MASSACHUSETTS Please note when operating the heater at altitudes over 7,000 FT above sea level the heater may shut off.

Brand: Mr. Heater


Special Feature: Portable, Low-Oxygen Safety Shutoff, Adjustable Temperature, Flame Resistant, Tip-Over Protection


Color: Red


Form Factor: Pedestal


Indoor/Outdoor Usage: Outdoor, Indoor


Brand: ‎Mr. Heater


Special Feature: ‎Portable, Low-Oxygen Safety Shutoff, Adjustable Temperature, Flame Resistant, Tip-Over Protection


Color: ‎Red


Form Factor: ‎Pedestal


Indoor/Outdoor Usage: ‎Outdoor, Indoor


Product Dimensions: ‎18.5"D x 18"W x 11.4"H


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


Mounting Type: ‎Floor Mount, Wall Mount


Room Type: ‎Living Room, Home Office


Heating Coverage: ‎450 sq ft


Burner type: ‎Radiant


Fuel Type: ‎Propane


Number of Speeds: ‎3


UPC: ‎089301748002 089301748255


Global Trade Identification Number: ‎06


Manufacturer: ‎Mr. Heater


Model: ‎Big Buddy Pro Series


Item Weight: ‎11 pounds


Country of Origin: ‎China


Item model number: ‎F274800


Batteries: ‎4 D batteries required.


Is Discontinued By Manufacturer: ‎No


Manufacturer Part Number: ‎F274800


Special Features: ‎Portable, Low-Oxygen Safety Shutoff, Adjustable Temperature, Flame Resistant, Tip-Over Protection


Date First Available: October 23, 2004


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Jul 21

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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Similar Products

Top Amazon Reviews

    • Great Product
Color: Red
These are great little heaters, bought three; two gifts and one for myself. You may use the small propane tanks, sold separately, or it has a connector inside to plug a separate hose into and connect large propane tank, so you'll have plenty of propane. Puts off plenty of heat, which is adjustable, of course the higher the heat is adjusted the more propane it will use but it does a great job. It's safe of course but make sure it has plenty of ventilation. I use during cold weather on the back porch and in my garage when I work out, leave the door and windows cracked. Nothing negative to say about this heater. ... show more
Reviewed in the United States on July 3, 2025 by JRMJR
    • Solid product and recommend.
Color: Red
Good price and well thought out design. I have used this heater for various outdoor projects to provide some localized heat to keep you going. It is also a nice addition at deer camp to be able to have some additional heat source to warm things up quickly. I do appreciate and have used the ability to add the external regulator to the unit to enable hook up to a 20llb or larger propane tank for extended use. Lastly, i have used this unit to heat a small shed approximately 12 x 16' in sub freezing weather and it made the space very comfortable to work in. ... show more
Reviewed in the United States on June 19, 2025 by BB
    • Excellent Product – Even Better Customer Service
Color: Red
I don’t often leave reviews, but I had to share my experience with Mr. Heater. I bought the Big Buddy heater but didn’t get around to opening the box until after the return window had closed. When I couldn’t get it to light, I reached out to their tech support—and they were amazing. Patient, knowledgeable, and truly helpful. What really impressed me, though, was the warranty exchange process. Not only did they honor the warranty outside the return window, but they were incredibly accommodating—even after I had a flood in my garage and the unit got wet. Most companies would’ve turned me away at that point, but Mr. Heater stood behind their product and went out of their way to help. Everyone I know who owns one of these heaters swears by them, and now I understand why. In a world where online customer service is often terrible, Mr. Heater is a rare gem. Great product, even better people behind it. Highly recommend. ... show more
Reviewed in the United States on May 13, 2025 by carley montgomery
    • So Far - Working
Color: Red
Arrived on a timely basis, well packaged. Set up immediately. 1 lb. Propane. It was fairly easy. Once I realized The input would turn to make this an easy process. I did experience an issue with the electronic start. I had inserted the battery and all seemed well but would not function. I called customer service and was very pleased with quick response. The problem with the electronic ignition was a user error. I had installed the battery with the negative toward the spring on the cap. Come to find out it goes in the other way. Once the change was made I immediately had electronic ignition. I set this up in my shop and it is pretty cold here. Set on high and it began to heat quickly. As with many others, The built-in fan is pretty weak in distributing. I will be setting up another fan behind to direct the air flow better. The manual leaved a bit to be desired. It certainly covers all potential hazards and I'm sure is very helpful to first-time propane users. The manual should have explained about installing electronic battery. Second, there was no indication as to whether it required a c or d battery for the fan. Just looking at it. I figured it was D. That worked. The other issue is to describe plug needed for the fan if someone does not want to use the batteries. I am in the process of preparing to hook up a 20 lb bottle and only used the 1 lb to test out the efficacy of The heater. At this time, I can say I am pleased with it Update. One of The regulators for the 1 lb propane bottles was bad. A machining issue. I contacted Mr. Buddy heater and they indicated to return the item or go through Amazon. I chose to go through Amazon and return the item without any problem and 3 days later had the new one. The new one does not have this issue. I can only say that between Mr. Buddy heater and Amazon. I am now satisfied. The new one has no issue with either one of the regulators. I can say that it has heated up my shop very quickly to a comfortable temperature. ... show more
Reviewed in the United States on January 18, 2025 by C. Lee

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