Mr. Heater F232000 MH9BX Buddy Indoor-Safe Portable Heater Review

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Last Updated: 12/16/2020

We’ve likely all been in a situation in which we’d love to have a portable heater keeping us warm and cozy on a cool evening, camping trip, or anywhere else that you need some portable heat. In these situations, a battery-powered tent heater just might not be enough to heat you.

If that’s the case, you might want to explore getting a propane-powered tent heater. However, with so many products on the market, it can be hard to choose which portable heater is the best and which one will fit your needs. Today, we’re going to be reviewing the Mr. Heater F232000 MH9BX Buddy model. This is one of the most popular Mr. Heater models out there, so it’s naturally in high demand because of its reputation.

We’ll cover everything about this heater and go over some of the specific features that it has to offer to better enable you to make your decision and determine if this heater meets your needs.

Mr. Heater F232000 MH9X Buddy

Mr. Heater F232000 MH9X

  • 4,000- to 9,000-BTU
  • Auto shut-off if tipped over
  • Covers up to 200 sq. ft.
  • 9 pounds weight


Being easily transportable is definitely one of the key features for this heater. It sports a large heating surface and folding handle so that you can pack it up and carry it around as you need very easily. It also has a swivel-out fuel connection, which will prevent it from bumping other things when being moved and also protect from damage in transit. Weighing only 9 pounds, you shouldn’t find it too difficult to pick up and carry about as needed. It’s the perfect size to store in a car, small room, closet, or other area when not in use. When it’s time to bring it on the road, you can easily fit it into even the most compact cars without sacrificing much space.

Adjustable Heat Settings

Part of the versatility of this heater is that you have adjustable heat settings. This means that if you need more or less heat, you can easily accommodate those needs by simply adjusting your heat settings. This particular heater can be set to 4,000 BTU/hour or 9,000 BTU/hour. This gives you the flexibility that you need in order to heat a variety of spaces in a variety of situations.

Wider Heating Area

This model by Mr. Heater delivers great value in the amount of heat that it is able to put out and how well it distributes that heat. The large, durable coated heating surface of this heater helps to direct the radiant heat from the machine to a wider area. Not only do you get the most bang for your buck in terms of raw heating power, but this heater actually expands on that by also offering this advanced heating distribution system.

Safety Features

Good safety features are on the forefront of many consumers’ minds, as they won’t want to put themselves or their family in danger by their selection of heater. You’ll be happy to know that this model by Mr. Heater does offer two key safety features that eliminate most safety concerns in one fell swoop.

The first safety feature is a low-oxygen safety shut-off feature. This means that if the heater detects low oxygen levels in the room, it will automatically shut off. This is important for a heater that runs on propane to have, since these machines typically increase the carbon monoxide level in a room. Too much of this can be dangerous, but with this safety feature, it’s not a concern.

The other safety feature that this heater offers is a tip-over safety shut-off. This is an especially handy feature for those who have small children and pets. If you are leaving your heater on throughout the night or for long periods of time, you might not always be able to keep an eye on it. When kids or pets run around, this heater could be tipped over. This creates an obvious fire hazard, and could be very dangerous if you don’t have the security of an auto shut-off feature that is activated if the machine is tipped over.


There are a variety of situations that you could choose to use this portable heater in. It would be the perfect solution if you are looking for something to heat your tent, cabin, camper, deer stand, or rooms in your home. Because of how portable it is, you won’t have a problem using it in one or all of these places on a consistent basis.

Pros and Cons


● Perfect alternative to a battery-powered tent heater
● Highly portable
● Multiple power settings
● Extensive safety features
● Wide heating area


● Requires propane to operate


If you are looking for a dependable, reliable space heater to serve you well in a variety of situations, this is a great option. It does represent a larger investment up front than some other space heaters that are more pedestrian, but it delivers great value with a lot of options and settings while also giving you durability and dependability at the same time.

Charles Jasper

Charles Jasper is the owner and main author of Home Climate Center. He has a degree in Engineering and 20 years experience on working on HVAC systems. He has a passion for everything related to home improvement and loves to travel. When he is not working, you might find Jasper working on projects around the house or organizing a camping trip.

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