Mr. Heater F215100 MH4B Little Buddy Review

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Last Updated: 12/16/2020

If you go camping in tents often, you know the importance of having a space heater to keep you warm. Though camping is a lot of fun, the amount of fun decreases a little as the night goes on and the temperature drops. In these cases, it is extremely helpful to have a reliable propane small tent heater to keep things warm within your tent while temperatures drop outside. Though it’s easy to understand why these are needed, it can be hard to find one specifically that fits your needs and works well for you.

We’re going to show you one of the most popular heaters that is used by campers, hikers, and vacationers on a daily basis to keep themselves warm inside their tent even while it is chilly outside. This heater is one of the most commonly used ones for a number of reasons, including portability, ease of use, specifications, and more.

Mr. Heater F215100 MH4B Little Buddy Propane Heater

Mr. Heater F215100 MH4B Little Buddy

  • Automatic low oxygen shut-off system (ODS)
  • Maximum Elevation (Ft) 7000 Feet.
  • 45-degree heating angle
  • Low-oxygen sensor 

Indoor Safe

Safety is a huge concern when dealing with portable heaters. In the wrong hands or under no supervision, they have been known to start fires and create other hazards that people just don’t want to deal with, especially when they are camping. You can reduce the risk of anything going wrong during your camping trip by using this propane heater.

The main safety feature of this heater is the oxygen detector. If this machine detects that the oxygen levels are low in the room, it will automatically shut off to protect you from potential carbon monoxide levels. This is a great feature because it’s a hazard that we can’t always detect ourselves. Even while the heater is hard at work keeping our tents warm, it is also working to protect us.

Another safety feature that this small tent heater offers is an auto shutoff when it gets knocked over. While this sounds like an anomaly, heaters get tipped over pretty frequently. This is especially dangerous while you are sleeping, as you could accidentally knock over the heater. Another instance where this might happen is if you are in the campsite and the heater gets knocked over without anyone noticing it. These situations create dangerous fire hazards, but the safety features that this heater offers will combat those potentially dangerous situations.


Typically, heaters that run on propane have a bit of a reputation for stinking up the room like propane. However, you don’t have to worry about that with this heater. It is completely odor-free, meaning you can get a good night’s sleep without distraction and the hassle of having to smell propane.


If you are a person who appreciates simplicity in their devices and electronics, this heater is going to be perfect for you. The controls are simple and easy to understand, meaning you won’t have to struggle with the heater to get it to turn on or off.

Beyond the basic controls, it is also easy to load and reload the propane. It uses a single cylinder of propane which burns clean and without odor. Simply change it out when it’s empty and you’re ready to go through the process again.


This heater is extremely compact. Where it lacks in power, it makes up for in the ability to take it virtually anywhere that you want to. It measures 11 inches on the longest side and weighs only 6 pounds!

It will fit just fine in a backpack or camping pack as well as the trunk of a car for emergency situations. Whatever your need for this heater, you certainly won’t have a problem transporting it to that location.


There are a wide range of potential uses for this heater, and you could use it in your tent, shack, small room, cabin, ice fishing shanty, hunting blind, campsite, or anywhere else that you need reliable portable heat.

The design of this heater makes it a valuable piece of equipment for your outdoor adventures, no matter what they be.

Heating Power

When compared with other, larger heaters, the heating power of this device is not very impressive at all. It puts out a mere 3,000 BTU, which isn’t near enough to rival those larger devices. However, for its size, this heater fills its role perfectly. It’s not meant to heat an entire house. It’s meant to give you a steady source of heat in your tent or at your campsite, which it will do perfectly.

Pros and Cons


● Small for easy portability
● Versatile
● Affordable
● Wellmade
● Easy to use


● Low heating power


If you are looking for the perfect, affordable small tent heater that your camping and hiking trips have been lacking, this is an excellent candidate. It is portable, powerful enough to heat a tent, and has all the safety features that you might want while using it in the woods. Given its excellent reputation and quality construction in addition to these features, we won’t hesitate to call it one of the best compact propane heaters out there.

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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