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Mr. Heater Portable Big Buddy Propane Heater - 10-Ft Hose & Tank Adapter Bundle - Indoor/Outdoor Use - 4,000, 9,000 or 18,000 BTU (3 Items)

  • Based on 275 reviews
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Availability: Only 3 left in stock, order soon!
Fulfilled by AmericaMart

Arrives May 21 – May 26
Order within 1 hour and 44 minutes
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Features

  • Bundle Includes: Mr. Heater Portable Big Buddy Propane Heater, 10-Feet Propane Hose Assembly and Brass Propane Tank Refill Adapter
  • BTU Output: Utilizing propane gas and featuring an impressive 4,000, 9,000 or 18,000 BTUs of heat output, the Big Buddy Portable Heater is capable of heating up to 450 square feet of enclosed space
  • Effortless Use: In addition to its impressive technical capacity, the Big Buddy Portable Heater features a variety of elements that enable effortless use and maximum performance. With its easy-start four-position control, fold-down handle, swivel-out fuel connection and a large overall heating surface, this unit raises the bar when it comes to portability and distinction in heating
  • Safe Heating: The Big Buddy Portable Heater is built for safety and features an Oxygen Depletion Sensor (ODS) and tip-over detection system which accounts for low oxygen or accidental falls and automatically turns off the unit, ensuring safety and ease of use for a long time to come
  • Brass Propane Tank Refill Adapter: With the Mr. Heater Propane Tank Refill Adapter, it only takes a minute or less to refill a 1 lb propane bottle. The adapter features a solid brass construction, a brass nipple to open the safety valve and a rubber gasket for sealing

Description

Stay warm and toasty wherever you go with the Mr. Heater Big Buddy Portable Heater! Designed for convenience and performance, the Big Buddy Portable Buddy is indoor safe and heats spaces ranging from your home’s garage to a large camping tent.4,000, 9,000 or 18,000 BTU OutputUtilizing propane gas and featuring an impressive 4,000, 9,000 or 18,000 BTUs of heat output, the Big Buddy Portable Heater is capable of heating up to 450 square feet of enclosed space.Effortless Use and Maximum PerformanceIn addition to its impressive technical capacity, the Big Buddy Portable Heater features a variety of elements that enable effortless use and maximum performance. With its easy- start four-position control, fold-down handle, swivel-out fuel connection and a large overall heating surface, this unit raises the bar when it comes to portability and distinction in heating.Safe HeatingThe Big Buddy Portable Heater is built for safety and features an Oxygen Depletion Sensor (ODS) and tip-over detection system which accounts for low oxygen or accidental falls and automatically turns off the unit, ensuring safety and ease of use for a long time to come! Wherever your travels take you, wherever you’re going on your journey, bring the Mr. Heater Propane Portable Buddy Heater along, so you can stay warm and comfortable! Note: The fan is not included.Bundle IncludesMr. Heater Portable Big Buddy Propane Heater10-Feet Propane Hose AssemblyMr. Heater Brass Propane Tank Refill Adapter

Brand: Mr. Heater


Special Feature: Adjustable Temperature


Color: Black


Form Factor: Rectangular with a carrying handle


Indoor/Outdoor Usage: Indoor


Special Features: Adjustable Temperature


Form Factor: Rectangular with a carrying handle


Indoor Outdoor Usage: Indoor


Power Source: Gas Powered


Heating Method: Forced Air


Mounting Type: Floor Mount


Room Type: Bedroom, Home Office, Study Room


Heating Coverage: 450 square feet


Heating Element: Radiant


Heat Output: 18000 British Thermal Units


Fuel Type: Propane


Max Temperature Setting: 144 Degrees Fahrenheit


Color: Black


Brand Name: Mr. Heater


Model Number: ABIGBUDD12HOSEK1


UPC: 646791441273


Part Number: F274800


Manufacturer: Mr. Heater


Item Dimensions D x W x H: 23.6"D x 18.1"W x 16.2"H


Item Weight: 16.81 Pounds


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 21 – May 26

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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Top Amazon Reviews


  • Great Heater with a good price.
Excellent heater! Came boxed well with no damages. The heater works very well, and controlling the heat ranges is excellent by using the dial for hi, med, and low settings. It was difficult to find the battery holder for the lighter, as it was not illustrated in the user's manual, but I finally found it. One AAA batter needed. Should have bought 2 of them. ... show more
Reviewed in the United States on February 11, 2026 by F.Miller

  • Good addition to have heat when power goes out
I received my heater yesterday. I was surprised to find it has fan built in. After putting 4 D batteries in and battery for starter it works great. I bought for power outages. The company was supportive and quick to answer when it seemed it was lost in the USPS. I will try it with the hose on 20 lb tank when I can figure that out. I did get the filter for that. ... show more
Reviewed in the United States on January 31, 2026 by Debra

  • Get one now!
These are the BEST heaters. I’ve used them for years. We just purchased a replacement, because we gave ours to someone who became homeless. It was cold out at the time, and you DO NOT want to wait to buy one until you need one. They work so well, you’ll be lucky if they’re in stock.
Reviewed in the United States on December 5, 2025 by Trina

  • Can't be trusted
Worked for 2 months took heater to local propane co. They wanted $175.00 to fix . Both regulators ,and valve control needed to be replaced. Next door neighbor bought one also his worked less time than mine did exact same problem
Reviewed in the United States on February 8, 2026 by Crow167

  • If heater won’t light, check your 5 gal propane tank hose
Upon assembling Big Buddy I attached a 5 gal propane tank to it. I opened up the propane tank but could not get the pilot to light. I replaced the 5 gal tank with two 1lb propane canisters, and it works fine. I checked with MrHeater. Seems there is a safety device in the propane hose #F273704 that shuts off supply from propane tank to Big Buddy. There is no trouble shooting answer in manual regarding this. If it happens, remove the hose from the 5 gal propane tank and tap against the tank or workbench. This will reset the safety device. Reattach the hose to the tank, and slowly open the propane tank. If the propane tank is full or over pressurized, and you open it quickly the safety device will shut down the flow. Other than that I like the heat output and design of Big Buddy. ... show more
Reviewed in the United States on January 6, 2024 by Sunvalleyslim

  • The company is price gouging during ice/snow emergencies.
I paid $179 in January 2025. They are listing for $374 after this current winter snow/ice storm. That's really unfortunate that a company will do folks in need that way. Shame on them. It's a great heater, and it kept my house/water warm while out of power for 4 days, but it wasn't because of the heater alone. The fan does not work very well on the required 4 D sized batteries. I supplemented it with a rechargeable fan (that worked strong for 3 days on one charge). I really like the heater and will watch for a price drop to get another, but historically companies that treat folks like this don't last. I.E., Sears. Making a good product alone won't assure them of success. The one star off is due to the fan not being great and the price gouging. It isn't worth $374 unless the option is frozen water pipes, and they shouldn't profit so much under those circumstances. ... show more
Reviewed in the United States on February 1, 2026 by Mourning Light

  • Very reliable and efficient
This thing is AWESOME! Saved our butts during power outage. I bought it to use at the racetrack in an enclosed space so the CO2 was a concern has never been an issue. We also run carbon monoxide detection.
Reviewed in the United States on November 10, 2025 by Sean Castner

  • Price is good
I got the larger propane tank and it works great
Reviewed in the United States on March 13, 2026 by joanne p.

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