Mr Heater Big Buddy Reviews 2021 [Ultimate Buying Guide]

Winter seasons can be challenging, especially if you don’t have a heater. The Mr. Heater brand is here to ensure that you have a great time during winter. You might be wondering what Mr. Heater has in store for you. We will tell you all about this great brand and the best products it offers. Mr. Heater’s big buddy utilizes propane to produce heat. They are portable heaters that you can use indoors in cold rooms. You can carry them with ease from one room to another. Thanks to their lightweight and portable design. The design of these products might not be beautiful. However, you have a guarantee that you will get an impressive amount of heat.

Most of you must be wondering, why propane? Have you ever thought about what would happen when there is a power outage during winter? Well, I guess you don’t like freezing. Mr. Heater’s brand was wise enough to produce propane-powered heaters for such a situation. I know that is enough for you to get such a heater undoubtable. You can use it for emergency purposes or just for permanent usage. The best thing about these heaters is that they are safe to utilize indoors. Winter seasons need something that you can set up quickly and provide worth if your room becomes too cold. The only heater models convenient for that is the Mr. Heater big buddy models. There are a few Mr. Heater’s big buddy heater models. We are going to review in detail 5 of the models.

mr heater big buddy reviews 2021

Different Mr. Heater’s big buddy models have different features. However, you will notice that there are features that you will find in all the models. You will find that each model is ideal for both outdoor and indoor utilization. This is all possible because it is powered by propane which is very safe. They also come with an oxygen depletion sensor.

The heater automatically goes off once it senses that the oxygen level is low. The sensor responds before the oxygen becomes too low. Therefore, you will still be safe. If you are using the heater indoors, make sure that the room is ventilated.

When using any of the models, you should take into consideration some protective measures. This is common for almost all gas-powered heaters.

The models also feature push-button lighting. This feature is necessary to enhance the ease of starting the heater. All Mr. Heater’s big buddy heater models are very straightforward to start. They utilize a piezo sparking technique. All you need to do is turn the propane gas on and then push the button, and the heater begins its operation.

If you are starting the heater for the first time, it might be a bit challenging. This case applies even after refilling the gas. This happens because the gas may take some time to flow into the combustion chamber. Just give it a few minutes, and you will be set to start the heater. Besides the similarities, you will also get some differences between Mr. Heater’s big buddy heater models.

1. mr. heater f232000 mh9bx buddy review

Mr. Heater F232000 Mh9bx Buddy


  • The generator allows the user to have two heat settings.
  • You can carry this heater with a lot of ease.
  • It incorporates safety features that allow indoor usage.
  • The heater has a large heating surface.
  • It’s design and size allow you to store it in a small space.


  • The smaller propane cylinder heater does not have an extended run-time.

Do you need a heater that you can carry easily from one room to another? Well, Mr. Heater F232000 MH9BX Buddy is the best choice for you. This heater model has all the portability features you need. Its overall weight is 9 pounds. That’s a great weight for you to lift with a lot of ease. The heater also comes with a foldable handle.

This implies that you can unfold and use the handle to carry it effectively. During storage, you can fold the handle. In that way, it will take small storage space. The design and size of this heater also add up in the convenience of storage. You can store it in the most little place you can think of.

This heater can fit perfectly in any small space. This heater’s versatility is just on another level. Thanks to its adjustable heat system. There are times that you need low heat, sometimes moderate, while other high heat levels. Don’t mind because this heater has got you covered on that. You will get two adjustable heat settings. You can set the heat to 9000 BTU per hour as a high setting and 4000 BTU per hour for a low setting.

Therefore, you don’t have to turn on too much heat when you don’t need it. The high heat setting is capable of keeping you warm even when it is extra cold. Its heating surface is also very large to ensure it transfers heat to a wider area.

2. mr. heater big buddy portable heater – Mr. Heater F274800 MH18B

Mr. Heater Big Buddy Portable Heater


  • The construction of this heater is very sturdy.
  • The heater comes with a handle that makes carrying very comfortable.
  • It has three heat adjustment settings.
  • It has oxygen depletion sensors that enable the heater to go off when the oxygen level is low.
  • This heater comes with great security features to ensure that the user is safe.


  • The heater consumes the propane very fast.

With Mr. Heater’s brand heater models, you have a guarantee of portability. This specific model allows for easy lifting up and transportation from one place to another. Just like the other Mr. Heater models, this one comes with a foldable handle. That allows portability and easy storage. This heater has an indoor heating surface that’s capable of heating a room to 450 square feet. That will ensure that everyone in such a room gets enough warmth from the heater. Using this heater is very safe, both indoors and outdoors.

The heater has all safety feature that ensures its users are safe. One of the safety features is oxygen depletion sensors. When using propane-powered heaters, you have to be aware of the production of carbon monoxide. This heater ensures that the carbon monoxide doesn’t reach dangerous levels. The heater automatically goes off when the sensor senses that the oxygen level is almost becoming too low.

That means that the oxygen level will not be too low when the heater goes off. Therefore, the user will still be safe. For security purposes, the heater also features a tip-over switch. The switch enables the heater to go off once it is knocked down. You have three temperature settings that you can adjust depending on the amount of heat you need. There are high, medium, and low heat levels. This heater has a maximum heat level of 18,000 BTU per hour.

3. Mr. Heater F215100 MH4B Little Buddy reviews

Mr. Heater F215100 MH4B Little Buddy Reviews


  • This heater comes with an oxygen depletion sensor.
  • You can tilt the heater at an angle of 45 degrees.
  • Operating this heater model is super easy.
  • It is extremely lightweight, enhancing portability.
  • It is suitable for indoor and outdoor use.


  • The heater provides only one heat setting.

Our buddy here is the smallest heater among the Mr. Heater models. In case you want an affordable heater, the Mr. Heater F215100 MH4B should be your first choice. You can use it for both indoor and outdoor purposes. Enjoy your camping, fishing, and other outdoor experience with this little buddy here. The heaters have a heating capacity of 3800 BTU per hour. It can heat a room of up to 95 square feet. This implies that it works best in small rooms and spaces. This heater is powered by propane.

It utilizes a gas cylinder sized 1 pound. This heater might not have enough run-time to last overnight due to the gas cylinder’s minor nature. The heater can only last for 5 hours. After that, you will need to refill the gas cylinder. In terms of portability, you can count on this heater model. Its size is a clear indication that you can easily lift and carry it. It weighs 5.91 pounds which is extremely lightweight. This heater is very stable. This is because the gas cylinder is connected correctly at the base of the heater.

That increases the overall stability of the heater. When using this heater indoors, make sure that there is ventilation. It will aid a lot in air circulation. Operating this heater is just a straightforward task. It comes with an on and off button. Therefore, if you need to switch it on or off, you just press the button once. That’s super easy, right? 

4. mr heater review – Corporation 29,000-45,000

Mr Heater Review


  • The heater comes with an auto-shutoff system and an oxygen depletion sensor.
  • The radiator design allows 540-degree heating.
  • The heater is easily portable.
  • You can quickly start and stop it using a button.
  • Its heat level range from 29,000 to 45,000 BTU/H.


  • It is only meant for outdoor utilization.

This is the perfect heater model for those who need a heater that can quickly heat a room. The best thing is that it is of very excellent quality. The heater’s quality ensures that its user enjoys long-term utilization. It will provide you with a lot of heat than you could even imagine. Unlike other Mr. Heater models, this model comes with a different design and shape. It narrower and features the radiator at the top and the gas cylinder at the bottom. The idea of placing the radiator at the top aid in ensuring that the heater provides heat to a wider area.

Like the other Mr. Heater models, the Corporation 29,000-45,000 BTU 540 Degree Tank Top, Multi is lightweight. This ensures that the heater is portable. This makes it a good choice for camping lovers and other outdoor activities lovers. You can also use it indoors without any worry about your safety. It features an auto-shutoff system and an oxygen depletion sensor.

The two features work together and ensure that the user always has enough oxygen in the space. Something that makes this heater super impressive is the ease of starting it. It has a push-button. Therefore, just press the button once in case you want to start or switch off the heater. The heater comes with a maximum heat level of 45,000 BTU per hour and a minimum heat level of 29,000 BTU per hour. The heat is just enough to provide all the amount of warmth you need.

5. mr heater 30000 btu review

Mr Heater 30000 Btu


  • It is ideal for 750 square feet of space.
  • This heater comes with a thermostat for temperature regulation
  • It comes inclusive of the unit’s legs
  • You can mount it on the wall or the floor
  • It has all needed safety features


  • It can be a bit bulky.

The features of this heater are just on another level. One of the most incredible ones is the wall mounting features. This heater allows the user to utilize it by conveniently mounting it on the wall. This heater model does not limit its users. In that, we mean that if you don’t like mounting it on the wall, you can just place it on the floor. Both mounting positions will ensure that heat reaches you. The Mr. Heater Vent Free Blue Flame Natural Gas Heater comes with the system’s legs.

This implies that you will be spared the cost of purchasing the legs separately. It is capable of heating a space that measures 750 square feet. The heater offers a heat level of 30,000 BTU per hour which is quite impressive.

This heater model comes with all the accessories that you need to set it up entirely. The heater comes with a thermostat that helps in temperature regulation. The range of temperature regulation is from 60 Fahrenheit to 118 Fahrenheit. Well, isn’t that impressive? The heater comes with all the safety features that any user would need. The safety features mainly ensure that carbon monoxide is not produced at any point.

This heater model is just great for those who need big heated rooms. You can also carry it from one place to another easily. In that way, you can also use it for camping and outdoor activities. This heater is powered by natural propane gas. It also has an auto-shutoff system that allows the heater to go off automatically when there is carbon monoxide.

Customers rating

Customers say that Mr. Heater’s big buddy heaters are helpful in terms of providing heat. The best thing about heaters is the portability feature. This makes them ideal for outdoor use where you need to carry the heater. Most customers like the Mr. Heater F232000 MH9BX handle. You can unfold the handle for easy lifting and fold it when it is storing time. However, you have to be keen on carbon monoxide production when using the Mr. Heater F232000 MH9BX model. They also like the fact that all the models have oxygen depletion sensors. This makes the heaters safe.

Apart from the Corporation 29,000-45,000 BTU model, all the other models are ideal for indoor and outdoor usage. The Corporation 29,000-45,000 BTU only works well for outdoor utilization. Customers also like the efficiency and durability of these heaters. They say that these heaters are significant in terms of providing longer run-time. The heaters also have very sturdy construction that allows long-term usage. For models like Corporation 29,000-45,000 BTU and Mr. Heater F215100 MH4B Little Buddy, they have a great design that is very stable. Apart from minor drawbacks, customers like heaters from the Mr. Heater brand. They are simply amazing.

Related Heaters Guides:

Electric garage heaters, Large room heaters,

Mr Heater big buddy reviews: Buying guide

Safety Feature

This is a crucial consideration when it comes to all propane-powered heaters. It would be best to go for a heater model with oxygen depletion sensors and an auto-shutoff system for the safety features. Luckily enough, all Mr. Heater models have these features. The features will ensure that you are safe from carbon monoxide.

Heat adjustability

Can I adjust the heat level? This is a question that you should ask yourself before deciding on which model to select. A heater might be having a very high heat level that you can’t adjust, which is very disappointing. Go for a model with two or three heat adjustment settings.

Ease of use

Some heaters can be very challenging to use. In case you need a model that won’t stress you up, go for the one with a button. The button is mainly for starting and stopping the heater. This means that the task will be super easy. Also, look for a model that is super easy to set-up.


You have to determine where you will be using the heater before buying one. Some models can be used both outdoor and indoors. Now that is what you should go for. You must also look at the space in which the heater can heat.

Frequently Asked Questions

Q: Can I use Mr. Heater’s big buddy in my bedroom?

A: Some of the Mr. Heater models are meant for indoor and outdoor use, while others are suitable for outdoor use. The decision about whether you can use the heater in your bedroom or not will depend on the model. Remember that Mr. Heater’s big buddy is propane-powered. You have to be very careful about using propane-powered heaters for indoor heating. Some models have all the safety features that make them safe to use indoors. If you have such models, ensure that you open your bedroom’s windows before sleeping. In that way, it will be very safe for you.

Q: Do Mr. Heater big buddy need ventilation?

A: As long as you are using the heater indoors, it is very wise if the room has ventilation. Remember that propane heaters can be hazardous if they don’t have all the safety features. However, even if the heater has safety features, make sure you are using it in a ventilated room. Propane heaters are known to produce carbon monoxide. This may lead to a decrease in the level of oxygen in the room. For that reason, you need to use the Mr. Heater big buddy in a ventilated room. Ventilations will play a significant role in ensuring that the air circulation is perfect.

Q: What safety measure should I take when using the heater in a tent?

A: Heaters play a significant role in providing heat during camping adventures. Some opt to use the heater inside the camping tent. To ensure that you are safe, you need to put into consideration some safety measures. You have to make sure that you are safe while using the heater inside the tent. The heater should be apart from other items at least 3 feet. In case the heater does not have an oxygen depletion sensor, make sure you have a carbon monoxide monitor just to be on the safe side. You should also not leave the heater under operation overnight when you are sleeping

Q: What is BTU?

A: If you have a heater or want to buy one, the abbreviation ‘BTU’ will be familiar to you. Are you wondering what it is? Well, it stands for the British thermal unit. It is used to measure the heat level or amount. For heaters, it is calculated per hour of the heater’s utilization. If you want to know whether the heater produces low or high heat, just look at its BTU. For high heat output, the BTU is usually very high. For low heat, the BTU is low. Therefore, the BTU will help you select a heater depending on the amount of heat you need.

Q: What Mr. Heater’s big buddy model do I need?

A: Several factors will determine this. To begin with, do you want to use indoors or outdoors? Remember that there are some models that you cannot use indoor. Therefore you need to look at each model and where you can use it. For the models we reviewed today, only a single model that’s not ideal for indoor use. You also have to know the space size in which you want to be heated. Different heater models will heat different spaces. There are models for small spaces, others for bigger ones. So as not to limit yourself, look for the one that heats a larger area.

Final Verdict and Recommendation

Do you want effective and fast both indoor and outdoor heating? Well, you have to go for Mr. Heater’s big buddy heater models. So that you know, prepare to be impressed by their fantastic performance. These propane heaters are great backup heaters in case there is power loss. Don’t agree to stay in the cold when Mr. Heater is still in operation. We can say that the Mr. Heater brand has the best propane-powered heaters. Don’t miss this chance of getting this incredible heater model. Say no freezing; get yourself one of Mr. Heater’s big buddies to keep you warm all day.

Similar Posts

Leave a Reply

Your email address will not be published. Required fields are marked *