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Availability:
In Stock.
Arrives
Tuesday, Aug 4
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Color: Red
Style: portable
Features
- Emits 4,000 or 9,000 BTU/hr radiant heat
- Designed and approved for indoor and outdoor use
- Heats up to approximately 225 square feet
- Features emergency low oxygen safety system
- 2 temperature settings: low and high
- Runs 5.4 hours on low and 2.4 hours on high with 1 lb propane cylinder
- Constructed with self-extinguishing materials
- The use of un-authorized accessories/attachments with this heater are expressly prohibited, may cause serious injury, and will void the warranty.
Description
For chilly deck parties, icy days on the lake, or cold nights at the campsite, the Portable Buddy is the perfect companion. The radiant burner acts as your own personal fire pit, with two settings giving up to 9,000 BTU of heat. Connects quickly to a 1-lb propane bottle—or to a 20-lb tank using Buddy accessories—so you can spend more time doing what you love. Speaking of time, a 1-lb bottle will last you up to three hours on the high setting, so the enjoyment (and warmth) will last. With the heaters’ 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. No matter how you spend your time outside, don’t forget to bring your Portable Buddy.
Brand: Mr. Heater
Special Feature: Portable
Color: Red
Form Factor: Pedestal
Indoor/Outdoor Usage: Indoor, Outdoor
Special Features: Portable
Form Factor: Pedestal
Indoor Outdoor Usage: Indoor, Outdoor
Power Source: gas_powered
Heating Method: Radiant
Recommended Uses For Product: Garage, Home, Patio
Mounting Type: Floor Mount
Room Type: Living Room
Heating Coverage: 225
Heating Element: Radiant
Heat Output: 9000 british thermal units
Fuel Type: Propane
Number of Speeds: 2
Voltage: 115
Amperage: 12 A
Max Temperature Setting: 900 °F
Color: Red
Brand Name: Mr. Heater
Model Number: F232000
Unit Count: 1 Count
Warranty Description: 1-Year Limited Warranty
UPC: 089301320000
Global Trade Identification Number: 00
Included Components: Piezo Igniter, Portable Buddy Heater
Item Type Name: heater
Manufacturer: Enerco Group Inc.
Part Number: F232000
Item Dimensions D x W x H: 7.7"D x 13.4"W x 15"H
Item Weight: 7.1 pounds
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Aug 4
This item is non-returnable:
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
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Top Amazon Reviews
Color: Red
Style: portable
I have, over the past few years, grown tired of trying to use a small portable electric heater (with two heat settings, rated at 850W and 1500W) to heat an 8.5 x 8.5 foot greenhouse dome tent (the ceiling of this dome tent averages 7' to 8.5 feet in height) that sits in my backyard and has been adapted for use as an outdoor office and meditation room. This outdoor dome tent, which occupies about 72 sq. ft., and about 585 cu. ft. of space, and which has translucent plastic tent walls, sits on the ground, and the floor is a tarp sitting on the ground, covered with some old carpets for a bit of comfort. This dome tent is entirely uninsulated, and, due to the translucent walls that easily allow heat to escape even in the near-infrared (NIR) and visible light regions of the spectrum, it offers even far less insulation than would a tent structure of the same size/volume that used an opaque material such as green tent fabric. This dome tent is equipped with eight zippered screened windows (four near ground level, and four at a height of 6' above ground) and I always leave each window partially unzippered year-round to allow for the flow of fresh air into the dome tent; this is important at all times anyway for adequate ventilation, but it becomes doubly-important when using a portable combustion heater such as this heater inside a dome tent such as this! So, as a result of the factors that I have discussed above, this structure has always been somewhat of a challenge to heat using the 1.5 kW electric heater whenever outdoor temperatures have falled significantly below about 55 degrees F, and it has been impossible to get the interior to anywhere near even 70 degrees F when outdoor temperatures have dropped to 50F or below. So, I finally decided to stop using the portable electric heater and to upgrade to a protable propane heater that was rated and certified as indoor-safe, and that could deliver at least 8,000 to 9,000 BTUs of heat. I finally purchased (via Amazon Marketplace) this Mr. Heater MH9BX portable propane heater, which has heat settings of 4,000 BTU and 9,000 BTU, after careful research into each of the various brands and models of portable propane heaters available on the market. I particularly liked the stable and robust design of this heater, and the fact that it has auto-shutoff for tilting, auto-shutoff for low oxygen levels, and also because of the pilot light and the built-in piezoelectric igniter. At the same time that I ordered this heater, I also ordered a Mr. Heater 12; propane gas hose, and a Mr. Heater inline propane gas filter for use with it. When the unit first arrived, I tested it for a week using a 1 lb. propane tank as the propane fuel source, and then, when that first tank had emptied, I installed the propane fuel filter and the 12' hose running to a 20 lb. propane tank outside the dome. I am extremely pleased with the performance of this heater. It is easy to use, and it produces a lot of heat, far more than my old electric heater did on its high power setting of 1500 W. In fact, I have run tests over the past few days (late October 2013, at an altitude of 1,000 feet in the Appalachian mountains, where we live) in the early morning hours, at about 4 AM (three hours before sunrise), where outdoor temperatures were about 36 degrees F with a 2-4 mph wind, and where the starting interior temperature inside the dome tent was also 36 degrees F. Using this heater on the High heat setting (it is rated at 9,000 BTU at this setting), the interior temperature of the tent was raised to above 70 degrees F within 6-7 minutes from start (this is amazing to me!), and was raised to 82 degrees F within 25 minutes of start; the interior temperature finally stabilized during each test run at about 83 degrees F while the outdoor temperatures were still at 36F. Given the fact that this dome tent has a lot of interior volume for its floor dimensions, and also because this dome tent has very poor insulation (the average insulation rating for the translucent plastic tent material on the walls and ceiling is less than 0.1 R, and the floor, consisting of a tarp and some old carpets sitting on bare ground, also has about the same terribly poor R rating, and also beause of the fact that I always leave all 8 zippered windows in the dome tent partially cracked, I am amazed that this little heater is able to heat the interior to of this structure, in the middle of the night (therefore there is no incident heat from sunlight entering the structure) from 36F to 83F in a bit over a half hour; this is an increase in interior temperature of 47 degrees F (over outdoor temperature and over interior starting temperature) in a structure that is entirely uninsulated and that loses heat very rapidly! In fact, this is an acid test for a heater such as this, for this is a kindof worst-case test for a portable heater! My above-cited tests, along with others that I have not enumerated here, show me that this heater, on the High heat setting, should be able to keep the interior temperatures of this totally-uninsulated dome tent at a comfortable level down to outside air temperatures of around 20 degrees F, and should be able to keep the interior temperature at "usable" levels down to outdoor air temperatures of below 10 degrees F/ If I could give this little portable combustion heater an Amazon rating of 7 stars instead of 5 stars, I would do so! And now, since I am a scientist and an engineer, let me share a few caveats with you about the use of this heater, and of ANY portable propane heater: Particularly if using this heater indoors, you will want to be absolutely sure to follow the manufacturer's safety recommendations to carefully check all propane gas connections for any possible leaks after installing, and to check them again prior to each use, tightening connections as needed to eliminate even small propane gas leaks. When you are first starting the stove after having installed a new 1 lb. propane tank directly (i.e,. no hose used) to the heater, bear in mind that the pilot light will not immediately light, and that even when it first lights, it will likely go out (i.e., extinguish) a few times for the first 45 to 60 seconds, because of air present in the internal propane gas line. Thus, you may need to hold the pilot light control down for a few seconds to purge any air present in the propane line before the pilot light will stay lighted. In other words, after having changed tanks, remember to bleed the fuel line by holding the pilot light control down prior to sparking, else you will be "wasting" some sparks! And, of course, once the pilot light has ignited and stayed lit, it is important to hold down the pilot light control for at least 30 seconds until the internal pilot light safety thermocouple has warmed up sufficiently to allow the pilot light to stay lit. When you are first starting the stove after having installed a new external propane tank (usually a 20 lb. tank) using propane gas hose (they are available in lengths ranging from 5 ft to 12 ft) remember that ths hose will, at first, also contain a lot of air, and thus you will wish to bear in mind that the pilot light will not immediately light, and that even when it first lights, it will likely go out (i.e., extinguish) repeatedly a few times for the first 60 to 90 seconds because of air present in the internal propane gas line. Thus, you may need to hold the pilot light control down for a bit seconds to purge any air present in the propane line before the pilot light will stay lighted. Once any stray air present in the propane gas line has been cleared, the pilot light will then stay on continually. In other words, after having changed tanks, remember to bleed the fuel line by holding the pilot light control down prior to sparking, else you will be "wasting" some sparks! Late Update, as of October 27, 2018: This amazing little heater is still working perfectly! I love it!
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Reviewed in the United States on October 27, 2013 by Vinny P.
Color: Red
Style: portable
I’ve been using these things since the ‘70s. I kept one in my VW Camper to keep warm in the winter nights. I’ve used them camping. They are simple and durable with no liquid fuel to worry about. Propane doesn’t spill and stinks if it leaks. Portable Buddy This is the second Portable I’ve purchased. The first was for my aforementioned ‘76 VW camper. This one is for our family inflatable 200sqft Koala 7 canvas tent. Yes, this little gem keeps things toasty in the evenings and overnight. I get about 100hours out of a 20lb tank. Good for about 4 days running on low 24hrs/day or 10 days just evenings and overnight for 10hrs/day. We do have a wood burning stove that we’ll use during the day should we have to if we’re in camp. But normally the days aren’t very cold where we camp in the winter, usually in the mid southeast. The wood stove is a nice ambiance, but the smoke is a problem if the air pressure outside is higher than the heated air inside. Hot air is less dense (it’s how hot air balloons float) and so lower air pressure per volume. If your stove draft isn’t strong enough to overpower the difference, you get a “back wash” of smoke. Cough, cough…. Big Buddy This has two ceramic elements, each is the same size as the portable buddy. Growing up in the northeast, we used the Big Buddy. With two elements, working independently (one lit is for Low and Medium settings and both for the high setting.) you get the benefit of the two units. If you need the heat of the portable Buddy, just use the Big guy on low and medium. If the temp is going to drop well below freezing, set it on high with both tiles glowing, for those times. The high setting flexibility is good to have, while the fuel and heat efficiency of the Portable Buddy “single” is the first option. Hoping your Buddy proves to be a good friend….
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Reviewed in the United States on November 2, 2025 by ‘76 VW Camper
Color: Red
Style: portable
Very portable and easy to use with 1lb or a 20lb adapter. Excellent heating. Will have you sweating in a small room. Even on low this unit heats well. Recommend to use filter if using large tank. Also look into a refillable 1lb tank setup.
Reviewed in the United States on June 30, 2026 by Casey Lee Bradbury
Color: Red
Style: portable
This is something everyone should have, honestly ditch those dangerous propane tops, yes this gets hot but man, if it tips even a bit safety shuts her right off! The power went out one time and we ended up using this, it last for hours! The size is small but mighty and perfect. I’m thinking about buying another one! Would be a great idea for hunting season, that’s coming up! Again hands down the safety feature is my favorite!
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Reviewed in the United States on July 5, 2026 by DannyPhantom
Color: Red
Style: portable
Perhaps this should be a five star review? Nothing wrong with the heater, just expensive to use. But, the price of propane is not the heater's fault. I use this in my 34' motorhome. It sufficiently heats the open front end on low - until the cylinder is empty. : ) Doesn't quite make it to the back bedroom, and of course not to the bathroom. I'm very happy with it. I do recommend, even for occasional use, getting the refill adapter (http://www.amazon.com/gp/product/B000AMC5WO/ref=oh_details_o00_s00_i00?ie=UTF8&psc=1) and a 20# (BBQ) tank so you can refill your cylinders. Unless of course you plan on getting the hose and fuel filter. A 1# cylinder will last about 6 hours on low, if new. In my experience a refilled one only lasts four hours. I've gone through three tanks refilling the cylinders and four hours is it. I've the Mr Heater in the front driver area, at night I do use an oil radiator on low about midway through the coach along with the propane. This keeps it from getting too cold when the cylinder empties and my (awful) furnace from kicking on too much. I do change the cylinders during the night. In Arkansas, we don't have the terrible prolonged cold. However, we've been below zero and had a few days in a row where our highs were only in the teens this winter. I've yet to need to use this on high - but, I do dress accordingly. This is my first winter in the coach, I'm planning on rearranging the bedroom so I can use a Mr Heater in it also. And, I plan on getting the hose & fuel filter for next winter. I used a kerosene heater in the 1980's, while I think it produced more heat, I prefer refilling the propane to refilling kerosene. I don't open a window, the coach is not that airtight, and I've indoor/outdoor cats so the door is opened regularly. I don't like the propane furnace, it's not exactly efficient and I smell exhaust from time to time. I've got three co detectors, not one has gone off, yet my cats want outside if the furnace has been running for more than five minutes. They enjoy the Mr. Heater. I have no concerns leaving the heater unattended, the safety tip-over and low oxygen shut-off make this safe. (but not idiot proof - don't put it below curtains or other flammable objects) I highly recommend this heater. If by chance you have an issue with one, remember, nothing is 100% all the time. There is a 1 year warranty, and if your issue is right out of the box, Amazon is the greatest, get a replacement.
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Reviewed in the United States on January 30, 2014 by Katz
Color: Red
Style: portable
The Mr. Heater Portable Buddy Heater (MH9BX) is easily one of my favorite overlanding products! I first discovered this heater through the Camping With Steve YouTube channel, and I can see exactly why it’s so popular. This little heater packs a serious punch, offering 4,000-9,000 BTU of radiant heat, and it’s safe for indoor use, which is perfect for camping or overlanding in colder conditions. What I really love is that it runs on the same 16 oz propane mini tanks that power my Coleman Stove, making it super convenient to use with the gear I already have. The performance is absolutely impressive. The heat kicks in quickly, almost immediately after the pilot light turns on. Within just a few minutes, the area around it is toasty and warm. It’s amazing how such a compact heater can heat up a small space so efficiently. It’s also incredibly clean and quiet once it’s running—aside from a very slight propane smell when first lighting, I barely notice it after that. It’s the perfect addition to my setup when I’m in the middle of nowhere and need to stay warm. In all seriousness, other companies should take notes on this heater’s design and materials. It’s clear that a lot of thought went into making it durable, portable, and easy to use. The build quality feels solid, and I trust it to keep me warm during my overlanding trips. It’s one of those products that you never knew you needed, but once you have it, it becomes essential. As a loyal customer, I can honestly say I’ll be using this heater for a long time. It's a lifetime keeper for me, and I wholeheartedly recommend it to anyone looking for a compact, reliable, and efficient heating solution for their camping or overlanding adventures.
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Reviewed in the United States on February 27, 2025 by John
Color: Red
Style: portable
Mr. Buddy Heater Mr. Heater F232000 MH9BX Buddy 4,000-9,000-BTU Indoor-Safe Portable Radiant Heater ITEM #: F232000 Model #: MH9BX Hmmm, Where do I start with this little gem? This item deserves more than 5 stars, its very rare that you purchase a product and it exceeds all your expectations My first time using this was on a Klondike Derby in a 10' x 10' EZ-Up tent with attached sides. Outside temp was hoovering around 30 degrees and was a bit cloudy. The heater worked flawlessly and kept the interior comfortable enough for a heavy shirt or sweater. My second time using the Mr. Buddy was on our winter trip February 20-22 2015. This is where I realized it was truly a great product. The Mr. Heater Portable Buddy was used in an 8 man Alaskan Guide Tent from Cabelas, the outside temp hit a low of -8°F. The heater worked well enough to warm the tent enough to sit in a light jacket. I was using refilled Propane Tanks, although I ordered the Mr. Buddy (NO FILTER REQUIRED) hose, Mr. Heater Buddy Series Hose Assembly - 10-ft., Model# F273704 we used the one pound propane bottles instead. I refilled a bunch using aMr. Heater F276172 Propane One Pound Tank Refill Adapter We had another heater, the Mr. Heater Big Buddy, Mr. Heater MH18B, Portable Propane Heater ITEM #: F274865 Model #: MH18B that we hooked to a 30 pound propane tank. Between these two heaters the "Portable Buddy" on low at 4,000 Btu's and the "Big Buddy" on medium at 9,000 Btu's the tent stayed toasty warm all weekend. We even took the "Portable Buddy" to a portapotti and heated the portapotti up to, "Do the 2". I felt comfortable leaving both of these heaters on when we slept, in fact we were stuck in the tent from Friday afternoon till Sunday morning and these were never shut off, we also ran a propane lantern on low at night and used a Camp Chef Everest High Output 2 Burner Stove for hot beverages and cooking. We had a carbon monoxide detector in the tent and it never once beeped, even after frying some porterhouse steaks and as load of potatoes. The Mr. Buddy Series heaters make no sound at all, has zero smell, are easy to use and are incredibly efficient. The piezo ignition works well, but I want to point out one thing, if the heater is pitched back slightly, the pilot will not light the propane , this is due to the angle of the ceramic, just make sure its on a flat surface. I would just tilt the heater slightly forward to ignite the propane. Tanks screw in with a little push to push through the seal in the propane, the fact that the connection swivels out makes changing out tanks easy.
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Reviewed in the United States on February 25, 2015 by Richard Leyden
Color: Red
Style: portable
The heater worked just as advertised. We used it through the very cold times to reduce heat bills and create a warm area.
Reviewed in the United States on June 18, 2026 by Leo