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Mr. Heater

Mr. Heater F232017 MH9BXRV Buddy Grey Indoor-Safe Portable RV Radiant Heater (4,000-9,000-BTU)

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Color: Grey


Style: Heater


Features

  • 4,000- to 9,000-BTU radiant heater for spaces up to 225 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.
  • Auto shut-off if tipped over, if pilot light goes out, or if detects low oxygen levels
  • Fold-down handle; swivel-out regulator; connects to propane tank (not included).Fuel Type:Propane
  • THE USE OF UN-AUTHORIZED ACCESSORIES/ATTACHMENTS WITH THIS HEATER ARE EXPRESSLY PROHIBITED, MAY CAUSE SERIOUS INJURY, AND WILL VOID THE WARRANTY.

Description

North America's Most Popular Portable Propane Heater! This patented radiant 4,000-9,000 BTU Liquid Propane heater connects directly to a 1 lb. cylinder and is the perfect solution for heating enclosed spaces like large tents up to 200 sq. ft. The expertly engineered size to BTU ratio is augmented with a fold down handle to give this heater maximum output while retaining a minimalistic footprint. A swivel regulator gives you the ability to adapt usage from a disposable cylinder to a remote gas supply with the purchase of a hose and filter. To light the unit, simply rotate the knob to pilot and push. Then the integrated 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


Color: Grey


Form Factor: Compact


Indoor/Outdoor Usage: Indoor


Special Features: Portable


Form Factor: Compact


Indoor Outdoor Usage: Indoor


Power Source: gas_powered


Heating Method: Radiant


Recommended Uses For Product: Use


Mounting Type: Floor Mount


Room Type: Bedroom, Home Office, Study Room


Heating Coverage: 225 square feet


Heating Element: Radiant


Heat Output: 9000 British Thermal Units


Fuel Type: Propane


Number of Speeds: 2


Max Temperature Setting: 100 Degrees Celsius


Color: Grey


Brand Name: Mr. Heater


Model Number: F232017


UPC: 089301001749


Global Trade Identification Number: 49, 43


Part Number: F232017


Item Type Name: Heater


Manufacturer: Mr. Heater


Included Components: 6 complete heaters


Item Dimensions D x W x H: 8.3"D x 13.4"W x 15"H


Item Weight: 16 ounces


Frequently asked questions

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View our full returns policy here.

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Top Amazon Reviews

    • OH YES!!!
Color: Grey Style: Heater
Perfect for heat in an emergency or camping/hunting! Uses the small propane cans, but not much of it! Heats well. No wobbling. Perfect! One heater heats our school bus/hunting camp in freezing temps.
Reviewed in the United States on January 28, 2026 by ENL Enterprises
    • This heater worked wonderfully.
Color: Grey Style: Heater
I just came back from tent camping. I got in late for the first night and did the bare minimum, I regretted the decision not to set up the heater. I was so cold I had difficulty sleeping. The next day I set it up immediately. My tent is a 9' x 10' and on low it heated the tent beautifully, almost too warm, I had the vents open on the top and a window 1/3 open and I still had to operate a fan hanging from the center to diffuse the heat while the unit was set to low. Great heater, I highly recommend it. The heater worked for 4 hours on one 1 lb cannister of fuel, so it took 2 canisters a night to heat it throughout the night. Next time I will attach it to a 5 lb cannister so I don't have to switch it out in the middle of the night. ... show more
Reviewed in the United States on June 3, 2022 by T Lyn Champagne
    • Worked great in an emergency
Color: Grey Style: Heater
Had an occasion to test this product over the winter when my furnace went out, and I was without heat for a week. Worked well, but a little too small for a large open space. Would be ideal for a small bedroom. Still, it put out enough heat to keep me more or less comfortable in the living room while there was no heat at all in the house. Light weight and very easy to carry. Very easy to replace tanks and turn on and off. This little unit I got had no fan, might think of getting a larger one with a fan in the future for a larger space. However, this model did me just fine in a heat-off emergency. ... show more
Reviewed in the United States on March 13, 2022 by Joel Carr
    • Easy to use.
Color: Grey Style: Heater
I use this with refillable small tanks. Great in my shop and off grid RVing. A sweet little rig it is.
Reviewed in the United States on January 20, 2026 by David
    • Purchase when it's warm out
Color: Grey Style: Heater
People often end up buying these when the winter storms come along, which is what I did. And thankfully, it did get here just in time to save us from having a vacate to a hotel. But WOW it cost quite a bit at that time, so if you live out in an area that's prone to losing power in the winter climate, just own one of these or something like it. Why not grab it in the summer time when they're discounted? We have it set up where we can re-fill portable tanks, or rig up the heater to work with a large tank. We only have a 1-story ranch house at about 1200 sq/ft to heat in emergencies. However, it does get the job done when placed in the center of the floor space. We were out of power for nearly 5 days. The portable buddy did not create a warm and toasty atmosphere or anything like that... but it did keep the house livable. In our case, we set it up between the kitchen and living room, and just lived inside the living room for a couple days... not expecting this little thing to fill an entire house with radiant heat from one source. We do have brand new Andersen windows that hold heat well, so that was a factor in maintaining the warmth. However, I was still impressed at how this heater performed at even its low setting. We switched it back and forth between low and high to conserve propane, and sometimes were even able to turn it off for a while when the sun was beaming in. Before it arrived we were at an indoor temp of about 50 degrees, and threatening to go lower. This heater combined with our new windows was able to hold us above 60 in the living room and kitchen areas. We just closed the bedroom doors until the power was restored. Sure we still needed sweaters and fluffy socks, but like I said... it was bad, and we were lucky we didn't have to leave. An affordable heater and 20lb tank of propane (maybe 2) is a lot cheaper than several days in a hotel. I suspect this would also do well in an insulated garage setting, although it likely would only create a bearable environment as opposed to a toasty one. Either way... when you're pressed into a slight emergency, you wanna already have one of these, especially if you've already got the propane tanks laying around for your grill or whatnot. Get it while it's cheap, spend an hour or so familiarizing yourself with the heater and your propane setup, and then store it until you need it. ... show more
Reviewed in the United States on July 30, 2022 by Evan
    • Glad I bought this! gonna get a back up!
Color: Grey Style: Heater
Definitely worth the money! Kept me toasty as hell in my blind. One 1 lb propane tank on low lasts about 5 hours. Very easy to use! VERY light weight. So many other uses! You can grill hot dogs on this thing!!!!
Reviewed in the United States on November 14, 2025 by brandon r reigert
    • Started right up.
Color: Grey Style: Heater
Works great, exactly what I wanted.
Reviewed in the United States on December 3, 2025 by Matt Odenthal
    • Really puts out great amount of heat in small amount of time--it sure seems safe for indoor use
Color: Grey Style: Heater
Given the stellar reviews, it really seemed that this would serve my needs--to supplement a decent electric heater on those below zero days in a small room in an unheated garage. And I think it will do that great, it really cranks with the heat, and starts right up. But I'm worried about the CO factor some. There are no windows in the small room, and running the unit immediately kicks the air cleaner into high gear (the air cleaner detects changes in air quality and reacts accordingly). But that probably is because there always is the faint smell of propane when starting a heater like this--and that's normal, you'll smell a little on all propane devices, like gas grills, etc. My air cleaner will not detect CO. Reviews on the subject are split, you DO need venting because it's gas powered, you DO NOT need venting because unit has an oxygen depleting sensor that will shut unit off if it is triggered, thereby eliminating possibility of CO being produced. Even the instructions hedges their bets on it--for emergency indoor use that touts benefits of aforementioned sensor, while also stating that proper ventilation is necessary in use of unit. It seems like it should be one or the other. And if it's just a case that so long as unit is functioning properly there is no need to worry about CO, then I wish Mr Heater said so in that simple of language in the instructions. I'll pick up a CO detector and go with what it indicates. UPDATE: Ran unit on high with Kidde CO detector 4 feet above and away from it for an entire life of 1 lb propane cylinder, 2 hours with door closed. Garage room is about 7' by 8' by 15'. Alarm did not go off, not once. I'm NOT recommending running it without ventilation, but feel much safer with it now that it tests out to my satisfaction. Changed rating from 4 to 5 stars, I highly recommend this unit. ... show more
Reviewed in the United States on January 3, 2018 by Dilf

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