The Best Garage Heater Is Not Just a Heater

Mr. Heater F232000 MH9BX Buddy 4,000-9,000-BTU Indoor-Safe Portable Radiant Heater

For tropical countries like Southeast Asian ones, a garage heater might not sound as appealing as it can be to countries that have four seasons. However, again, countries with four seasons, experience the coldest season every year: WINTER.

This is why investing in air conditioning systems and heaters are crucial to them. Buying the best garage heater for your house should be treated as a long-term investment. Which is why today, we will be listing down some important things and key points to consider before buying one.​

Top 5 Best Garage Heater Reviews

#1 – Mr. Heater F232000 MH9BX Buddy 4,000-9,000-BTU Indoor-Safe Portable

Mr. Heater F232000 MH9BX Buddy 4,000-9,000-BTU Indoor-Safe Portable Radiant Heater

This heater from Mr. Heater can heat up spaces up to 225 square feet. It is a liquid propane heater that can directly connect to a propane tank. In addition, it has two heat settings, 4,000 and 9,000 BTU.

It has a fold-down handle which makes it more portable and space-efficient. It also has a swivel-out regulator so you can easily install a liquid propane tank and a hose. The unit automatically shuts off when it detects low levels of oxygen or when it is tipped over.​


  • Easy to use
  • It doesn’t require electricity to operate
  • It is portable. The handle makes it easy to carry around from one place to another


  • It only has two heat settings
  • It eats through the 1-pound canisters at a fast rate. The instructions state that you cannot use it with 20 lb. Propane tanks in enclosed spaces

#2 – Dr. Heater DR966 240-volt Hardwired Commercial Heater, 3000-watt/6000-watt

Dr. Heater DR966 240-volt Hardwired Shop Garage Commercial Heater, 3000-watt/6000-watt

The Dr. Heater DR966 is a heavy-duty single-phase commercial heater. It has an adjustable thermostat with low and high settings. It comes with a mounting bracket so you can mount this onto your wall or ceiling.

The 8” fan provides robust and evenly distributed airflow with minimal noise. It has a rugged stamped steel cover and five-way adjustable louvers so you can easily control the air’s direction.​


  • It has a 1-year parts and labor warranty
  • It has an adjustable thermostat
  • Easy to install


  • The adjustable thermostat does not have markings aside from “low” and “high"
  • Uses up a lot of electricity
  • It doesn’t have a power switch

#3 – Dyna-Glo RMC-FA60DGD 30,000 - 60,000 BTU Liquid Propane Forced Air Heater

Dyna-Glo RMC-FA60DGD 30,000 - 60,000 BTU Liquid Propane Forced Air Heater

The Dyna-Glo RMC-FA60DGD is a safe option to heat up your garage or any other space that needs heating. It has a tip-over shut-off function and a back pressure switch for safety. Also, it has an auto shut-off protection against overheating, so you don’t have to worry.

It has a blower that spreads the heat, and an adjustable heat angle so you can easily control it. In addition, it also comes with a ten ft. hose and a regulator. The swivel carry handle makes it portable and easy to carry around.​


  • It can heat up to 1,350 square feet
  • It is safe for use both indoors and outdoors
  • You can use liquid propane tanks up to 100 lb


  • It becomes noisier the more you heat it up
  • It can burn through propane tanks quickly
  • You have to unplug it every time you turn it off

#4 – Fahrenheat FUH54 240-volt Garage Heater, 2500-5000-watt

Fahrenheat FUH54 240-volt Garage Heater, 2500-5000-watt

This heater from Fahrenheat is an ideal option for garages, basements, and other large spaces. It’s a durable, heavy-duty industrial type heater made of steel, so rest assured that it would last for a long time. You can easily mount it using its built-in ceiling mount bracket, too!

The heater has adjustable louvers so you can quickly redirect the heat to where you need it the most. It comes with a built-in thermostat knob which ranges from 45-90 degrees Fahrenheit.​


  • The louvers make it easily adjustable
  • It doesn’t produce much noise
  • It has a 10-year warranty


  • The manufacturer highly recommends hardwiring this unit
  • The thermostat knob doesn’t have labels
  • It also does not have an on/off indicator

#5 – Modine HD45AS0111Natural Garage Heater 45,000 BTU

Modine HD45AS0111Natural Gas Hot Dawg Garage Heater 45,000 BTU with 80-Percent Efficiency

This heater from Modine packs a punch at 45,000 BTU. It’s certified for residential, commercial, and industrial use. Its minimalist design can help it blend in wherever you choose to use it.

This model is silent – you probably won’t even hear it running. It’s easy to install with field wiring connections and knockouts so it can quickly access gas and electricity. It also has a small-diameter vent pipe that simplifies side-wall or roof venting.​


  • It operates quietly
  • Easy to install
  • It comes with a 10-year warranty


  • It does not come with a thermostat. You will have to install a separate one yourself

​Best Garage Heater - Buyer’s Guide

There are a lot of stuff that might make your garage heater effective or ineffective. Here are some things to look into before deeming a garage heater model superb.

#1 Size of Your Garage

The size of your garage matters a lot. The general floor area, the height of your ceiling as well as the number of cars in the garage are part of this factor. If you think that your ceiling is pretty high, there is more than one car present, and the garage, in general, is big, it is best to get a more powerful heater.

size of your garage

The power rating of garage heaters is usually presented in the form of BTU or British Thermal Unit. Higher Watts and BTU means a more powerful garage heater. If your heater is not powerful enough, you won’t just get insufficient heat; you might even damage the heater itself as well.

This is because having the heater go over its capacity just to heat up a bigger place will only wear out its engine.​

#2 Temperature Rise

The temperature rise in your place or country is also something to consider. The temperature rise is just the difference between the temperature outside your home/garage versus the increased temperature you want to achieve inside.

This is also where the insulation of your home/garage comes into play. Whether or not your place is insulated, and the temperature rise is high, affects the overall performance of a garage heater.​

For instance, if you live in a country that is almost constantly cold, and if space is not insulated, then you will need a more powerful heater to raise the temperature in your garage.

Read more about dehumidifier for home

#3 The Type of Heater

There are four main types of garage heater: the electric/fan-forced, the radiant, the infrared and the gas/diesel/kerosene type of garage heater. Although all four can do their job, they are used for different situations and have different power levels.​

The electric or fan forced garage heater is one of the easiest ones to install. They are easily portable and can be taken anywhere around the garage. Just like your typical electric fan, they convert energy to heat and uses fan blades to distribute heat.

Just plug in it any compatible outlet, and it’s ready to go. However, do mind the power requirements of the heater and the capacity of your outlets before plugging in to avoid accidents.

​The radiant type, on the other hand, works similarly like sun rays. They heat up very quickly. However, they can only radiate heat from the unit to individual objects or even people inside the garage.

It does not heat up the whole garage as other heater systems would. This would only be ideal if you are going to be working in your garage on a cold winter night and you need warmth nearby.​

The third type which is the infrared, is also, again, similar to radiant type heaters. The infrared wavelengths that send out heat also transfer heat or warmth only to specific objects or people. Or even your work area, but not the entirety of your garage.

Unlike fan-forced heaters, the radiant and infrared types are very silent because they don’t make use of fan blades or any engine at all that may produce a loud noise. So, if you want a more quiet heater for small garages or working spaces, these would be ideal.

Finally, the gas/diesel/kerosene operated heaters, are considered to be one of the most powerful heater systems out there. This is perfect for large spaced garages or industrial work areas.

Although because of their power, they might take a little longer to heat up but can increase the temperature of your entire place. No matter how big it is.​

#4 Safety and Protective Features

Though it goes without saying, malfunctioning or unattended heaters are potential fire hazards. A place can get as quickly burned if it is already getting heated up. This is why a lot of heater brands and models have safety features.

Manufacturers usually equip heaters with surfaces that don’t heat up or automatic sensors that shut down the heating system when the machine has reached some degree of temperature deemed unsafe.

Protective features even go as far as electronic sensors that turn off the heater system when it has been accidentally knocked over. So aside from its heating capacity, make sure to get one with safety features to avoid fire accidents.​

#5 Noise Production and Energy Efficiency

Now, just because a heater is efficient, doesn’t mean it has to produce unacceptable noise levels. Or vice versa, just because a heater is noisy, doesn’t mean it heats up real quick or whatsoever.

For all we know, the heater might’ve been defective already which was why it was producing that much noise in the first place. But then, you can avoid these by choosing heaters that are non-forced or oil operated.

Non-forced and oil operated heaters are usually quieter than other types. You wouldn’t want to be unable to sleep at night just because the heater in your garage is on. And as for electricity operated ones: are they energy efficient?

There are lots of energy efficient heaters out there, but there are also a lot that consumes a lot of power can produce electricity. This can cause your bills to spike up. Especially if the season is cold and you plan on using the heater every day for long durations.​

If you are not too sure about the heater itself, you can calculate you would be heater operating costs using the specifications of the heater and a unique formula. Unlike air conditioning systems, portable heaters do not usually have some standard efficiency level.​

However, if you are opting for more great heaters, please do keep in mind that these powerful heaters might need a lot of power or energy to heat up a bigger place at a faster rate.​

On the Side Note...

All these factors listed might not be everything you should look into when buying garage heaters, but these might be some of the most important ones. Especially, if you want to find the best garage heater for you that is durable, efficient and safe.

But then, do not try cutting on the prices if you want quality heaters. Most heaters that come with good safety features might be a little more expensive than others. So if you want to keep your home safe, do not sacrifice safety for price.​

The Verdict

The Dyna-Glo RMC-FA60DGD heater is the best pick for us since its cons are relatively minor inconveniences at best. It can heat up large spaces, and you can use bigger propane tanks, making it more efficient. This is because you don’t have to buy new tanks as frequently.

Furthermore, it is very versatile as it can be used both indoors and outdoors. If you need to use a heater for other purposes besides your garage, this is also an excellent choice. Other units required to be hardwired and mounted, so it’s not as multi-purpose and a bang-for-your-buck option.

The biggest advantage this has over the others is that it has a safety mechanism that automatically stops it when necessary. Plus, it’s one of the more inexpensive options on this list, too! You really can’t go wrong with this one.​

Steven K. Galloway