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Buyers Guide & Information

10 Best Garage Heaters: Reviewed, Rated & Compared

We have rated and compared the best garage heaters for safe home and commercial use. Warm your workspace efficiently & effectively with these top brands.

Buyers Guide & Information

10 Best Garage Heaters: Reviewed, Rated & Compared

We have rated and compared the best garage heaters for safe home and commercial use. Warm your workspace efficiently & effectively with these top brands.

by Joshm

Best Propane Garage Heater

Pro-Temp Cabinet Heater
Pro-Temp Cabinet Heater

This quality propane heater works with a 2olb tank attached and warms areas up to 450 sq.ft.

Best Electric Garage Heater

Fahrenheat FUH54 240-volt Garage Heater
Fahrenheat FUH54

This powerful garage heater offers up to 5000 W and can heat workspaces up to 1300 sq.ft.

Best Portable Garage Heater

The Mr. Heater F232000 MH9BX Buddy Heater
Mr. Heater MH9BX

This personal space heater is versatile and can be used anywhere as it heats areas up to 225 sq.ft.

The garage is not always the first place that you think of for installing a heating solution. But they can be one of the coldest areas of the house and may need an efficient heating solution. It is for that reason that is owning a garage heater comes in handy.

People use their garages for a wide range of applications other than storing their cars. In a recent survey, it was found that 55% of Americans spend 1 – 2 hours every week in the garage on hobbies and other activities.

This might be fine in summer, but with the teeth-chattering cold of winter approaching, it makes sense to have a garage heater for those hours and hours spent in the garage. There are many different reasons to retreat to your garage – whether because it is the one quiet spot in the house, or to work on their non-compliant vehicles and motorbikes, or to have a get-together or fun place with their friends, but it should still be comfortable and usable.

Garage heaters heat your garage, basement or workshop and they come in various shapes, styles, and models. The wide range of options includes those that use electricity, propane, natural gas, and kerosene.

In this detailed guide to garage warmers, we do all the research and testing so that you don’t have to. We looked at all of the garage heater models on the market and narrowed your options down to find our top ten best garage heaters of 2018.

In our testing and research phase, we considered the pros and cons of specific models, including their performance, the various features they offer, their operation, and other unique qualities. We hope that after reading through our breakdown of the top options on the market, you will quickly decide on the model that speaks to your heat and warmth needs.

5 Important Questions Before Purchasing A Garage Heater

Before purchasing a new heater consider these important questions. Being able to answer them or at least some of them will help find the best garage heater for you and your work space.

1. How Big Is Your Garage Or Workshop?

Heating a one car garage with a work bench is entirely different to warming a large workshop with employees. Have an exact measurement of your space or at least a rough guide to the square feet you won’t to heat.

2. Do You Want To Heat Yourself Or The Whole Area?

Small portable heaters can be sufficient if warming up one person in their garage. Entire areas are also easy and spread heat, they require a little more planning so figure out what you require.

3. Do You Want A Fixed Or Portable Heating System?

Fixed systems allow for constant and even heat throughout a home garage. Portable devices give the advantage of manoeuvrability. Consider which is better for you.

4. How Do You Want To Power It?

Electric is easiest and most common. That doesn’t mean it’s always better. Propane, natural gas and kerosene are all options for heating up a work space.

5. What’s Your Budget?

Prices range from $25 into the $1000’s with an average being approximately the $200 range. Have an idea of what you are prepared to outlay before you start searching.

Our Top Pick

Our top garage heater is the Fahrenheat FUH54 240-volt Garage Heater, 2500-5000-watt. The system is small, but it is powerful, efficient, portable and very safe. It is capable of providing up to 25,600 BTU, has a built-in thermostat that offers simple temperature control, can consistently heat large areas ranging up to 1,300 square feet and its ceiling-mount installation means it won’t take up a valuable real estate on your garage floor.

Considerations Before Buying A Garage Heater

As you shop for your garage heater this cold season, be sure to consider some of these key elements:

Size & Shape of the Area

When it comes to the size and shape of the area that requires heating you need to look into the following aspects:

  • What is the height of the ceiling and the surface area of your room?
  • How well insulated is the space you need to be heated?
  • Are there any drafts in the space?

One way you can consider the floor space and size is through looking at it according to the square feet.
Ten watts per square foot is the easiest way to determine the size of the heater you need to keep yourself or your employees warm. If you, however, have terrible insulation or high ceilings, then you might need to consider more than 10 watts per square foot.

For example, a 7,000-watt heater will cover 700 square feet. Therefore for you to figure out watts from BTUs here is the conversion ratio:

1 watt = approximately 3.41214 BTUs/hour

BTU/3.41 = Watts or Watts x 3.41 = BTU

Check your calculations against an online conversion calculator. It will help you figure out how many BTUs or watts you will require based on the dimensions of your garage/basement space, insulating conditions, and temperatures.

BTU to Watts Calculator

Watts to BTU Calculator

Heat Output (BTU’s)

The heat output you need depends on the size of the garage and when it comes to the heat capacity we look into BTUs.

BTUs, the British thermal unit (BTU) is used to measure the heat output that heater gives out. If you perhaps have a large garage, then you need to consider investing in a heater that has higher watts and BTU. For example, 4000 to 5000 BTU is the perfect range for the large garage. Smaller garage spaces, on the other hand, require BTUs of 1000-2000 BTU.

Here are some of the BTU and Watts estimates:

  • 1500+ Watts: For smaller garages, up to 150 square feet.
  • 2500+ Watts: For medium garages, up to 250 square feet.
  • 4000 to 5000 Watts: For larger garages, up to 500 square feet.

Thermostat Options

A thermostat provides you with the ability to set your home’s heating and cooling temperatures to suit your family’s schedule and lessen your total energy costs. When selecting a garage heater based on the thermostat option you need to consider how much energy you need to use and the type of unit you want. Since you trying to get rid of the cold, you should ensure that your thermostat options are from 60°F to 68°F.

Safety Features

When you are dealing with a powerful heating source like a garage heater, you need to check the safety features and the precautions to take in case of an accident. You need to be sure about the efficiency of the system, and whether you can turn it off or start it up quickly. Consider the various safety features like:

  • The Tip Over Safety – If the system tips over, the heater automatically shuts off.
  • The Overheat Shut Off – The garage warmer will turn off if the system overheats.
  • The Flame Out Protection – The unit shuts down if the flame goes out to avert a build-up of gas that isn’t being burned off.
  • The Guards – Many garage heaters are equipped with guards and other safety nets so that you cannot inadvertently burn your delicate body part when they are near the radiator.

Heating Costs

Considering the heating costs of your garage is going to be the most volatile variable in your plan of purchase. You need to determine the market rate for electricity or natural gas, and the easiest way to do that is by looking at your last bill.

Once you know the amount you the gas company and power company charge on a monthly basis, you can approximately estimate the cost of heating the garage. You will also need to know the BTUs on your heater and the size of the garage. Doing so will help you to see the temperature you want to keep at the garage as well.

Here is an estimated cost table of the utilities you will be using:

Power Source Energy Content Unit Price Heat Conversion Efficiency
Kerosene 134,000 BTU/gal $4/gal 85%
Natural Gas 100,000 BTU/therm $3/therm 80%
Propane 92,000 BTU/gal $2/gal 80%
Electricity 3,412 BTU/kHz $1/kHz 100%

Figures according to Access Energy Co-Op.

Portability

Are you in need of a garage heater that is easy to move around? Do you work in different areas of your garage? These are things you need to ask yourself when considering the portability or position of your unit. You might also want to consider getting a unit with wheels or one with a handle.

Design & Features

Other things you need to consider are the type of style you need and unique features like the remote control for easier access and operation, a fold-down handle does not only allow you to transport the unit, but it also helps in the reduction of storage space, among other additional features. Some models have the auto shut-off option that when tipped over when the pilot light comes off, or if it senses that there are low levels of oxygen, it also comes off.  Other modes have different mechanisms that make them a better and more preferred option.

Warranty

Most garage heaters have a warranty of one to two years, while others offer five years of cover.

10 Best Garage Heaters Reviewed

1. Fahrenheat FUH54 240-volt Garage Heater

Fahrenheat FUH54 240-volt Garage Heater

Specification Summary

Best Choice ForElectric Garage Heater
Type of FuelElectricity
Watts2500 (low) 5000 (high) Watts
BTUsUp to 25,600 BTU
Heating Area Up to 1,300 square feet
Price Range$$$
WarrantyYes - 1 Year and 10 Years for the Heating Elements

The best electric garage heater is hands-down the Fahrenheat FUH54 240-volt Garage Heater. For a unit with industrial-strength power, you might expect something bulky that would take up valuable floor space in your garage or workshop, but this compact unit really gets the job done. Not only that but it doesn’t have to take up floor space at all! Unlike a lot of heating units, this one can be installed on a ceiling or wall mount. The heat can be directed just where you need it to be without getting in the way of your projects.

One thing that is important to note about this unit (but should not be a deterrent to purchasing it) is that this garage heater is not a plug-in-and-go model. It will need to be hardwired by an electrician or someone who really understands what they are doing. When you purchase this unit on Amazon, you even have the option of receiving “expert installation” for a reasonable price upon delivery.

The FUH54 is a small but powerful fan heater that is designed to heat garages, basements & workshops. Be aware that it weighs around 25 lbs but once set-up this will no longer be a concern.

Its ceiling-mount enables you to keep the floor of your garage space clear and, since it is electric, there is no need to mess around with a gas supply. It is still powerful with a max BTU of around 25000 and a wattage range of 2500 to 5000 from low to high.

It also features a thermostat that you can comfortably adjust from a range of 45°F to 135°F. However, in most of these Fahrenheit models, there are usually no degrees listed on knobs. It also has an adjustable louver on the front of the unit that allows you to control the direction of the heat with less effort. The FUH54 is a cost-effective choice in heating with several users reporting a cost of approximately $1 per day to their heating bill.

It is the best investment you can make when it comes to garage heaters that are of a medium size. This product suits 2-3 car garages or bigger workshops and represents value for money.

What We Like

We love that this unit is hardwired and is safe to be run consistently (even when you’re not present), just like a home furnace.

What We Do Not Like

This isn’t a portable heater by any means. You will really need to commit to a mounting location right off the bat, as the fixture will be a semi-permanent one (or require a lot of additional work).

2. Pro-Temp Cabinet Heater

Pro-Temp Cabinet Heater

Specification Summary

Best Choice ForPropane Gas Heater
Type of FuelPropane Gas
WattsN/A
BTUsUp to 18,000 BTU Heat Output
Heating Area Up to 450 Square Feet
Price Range$$
WarrantyYes – 1 Year

For areas that only need to be heated occasionally or don’t have an electrical hook-up, I highly recommend a propane gas heater. This Pro-Temp Cabinet Heater uses the same 20lb propane tanks that most grills use, and its functionality makes it the best propane gas heater for your garage.

What I love most about this unit because the gas supply is directly in the heater, there aren’t any bulky cords or extensions that you need to worry about tripping over. The unit is atop four heavy-duty wheels and can be easily moved, so if you’re working on a car you can move it to the area you need it most, like a personal heater. Its size will make it quite difficult to knock over, but if it does fall the automatic safety-switch will disable the unit until you start it again.

This ‘cabinet heater’ is the ideal choice for both professionals and the DIY fanatic.  Pro-Temp heaters are suitable for a wide variety of spaces including workshops, construction sites, warehouses, fishing, and any application where a portable heater is necessary.

It is smart, functional and perfect to maintain the temperature of an indoor setting. The space heater has a BTU output range of 6600 BTUs (low) to 18000 BTUs (high), which is adequate to create a comfortable temperature in indoor (and outdoor) spaces.

3 heat settings allow for adjustment which is ideal for garage work. The shut-off safety features such as tip-over switch and oxygen depletion mean your health is prioritized by Pro-temp.

What We Like

We love the warm radiant heat this propane gas heater gives off, and how it’s completely portable and can be put away when not in use.

What We Do Not Like

Like anything that runs on a propane tank, if you use it often you will need to replace the fuel often.

3. Cadet RCP502SCM Camo Heater

Cadet RCP502SCM Camo Heater

Specification Summary

Best Choice ForSpace Heater for Garages
Type of FuelElectricity
Watts3333 (low) 5000 (high) Watts
BTUsNot indicated
Heating Area 750 square feet
Price Range$$$
WarrantyYes – 5 Year

This space heater by Cadet is nicknamed “The Hot One” and for good reason, as it will really create a toasty environment! We rate it the best space heater for garage because you really couldn’t ask for more from a plug-in, portable unit.

With the Cadet, you simply set the thermostat to where you want it and it will reach and maintain that temperature. The unit is designed to turn-off once your ideal temperature is reached (or if the unit becomes too hot). Its built-in fan can also be used alone, without heat.

Even though this Cadet Space Heater is a plug-in model, beware that it will not work with standard electrical outlets. It requires a 240-volt receptacle, or 3-prong outlet, which you’ll probably recognize from your dryer unit. If your garage or workshop doesn’t have one of these outlets, it can easily be installed in about ten minutes by a licensed electrician. The cord supplied with this unit is 6-feet long, so you do have a little bit of wiggle room with where you’d like to keep it.

This Camo heater has 5000W and meets the needs of medium to large, even poorly insulated spaces such as a garage or basement. Its rugged construction and style help it withstand bumps and dings within the workshop as well as cold winters.

This combination offers a serious amount of hot air quickly and for mild temperatures, it is capable of spaces up to 1000 sq. ft. In colder climates, it is wise to halve that space to 500-600 sq.ft in terms of heating. Other factors such as insulation, floors, number of doors will influence any heaters ability.

It also comes with two heating settings, a thermostat control dial, and an automatic control temperature switch. These allow you to adjust the heat of your room depending on your heating preferences and needs. The sturdy bracket will enable you to use it as a free-standing heater or to mount it on the wall and a 6-foot power cord. Most garage heaters are either wall mounted or stand on the ground so this Cadet model solves this dilemma by allowing both.

What We Like

We love that the Cadet Hot One can heat up an entire garage in a relatively quick and quiet manner. Even when temperatures outside were below freezing, the Cadet model provided comfortable heat inside.

What We Do Not Like

If you need to have a 240-volt receptacle installed it will be an additional cost, and you can obviously only move the unit to other areas where a 240-volt receptacle is available.

4. Mr. Heater Vent Free 30000 BTU

Mr. Heater Vent Free 30000 BTU

Specification Summary

Best Choice ForVent Free Natural Gas Heater
Type of FuelNatural Gas
WattsN/A
BTUs20,000-30,000 BTU
Heating Area Up to 750 Square Feet
Price Range$$$$
WarrantyYes – 2 Years

If your home is connected to a natural gas line, you might consider using a natural gas heater in your garage or workshop to supply you with clean, efficient heat. One of the greatest benefits of this Mr. Heater Natural Gas unit is that it will continue to supply cozy heat even in the event of a power outage. Because of its easy installation and mounting flexibility, we rate this Mr. Heater unit the best natural gas garage heater.

Some reviewers have mentioned liking it so much that they brought it inside to replace their gas-powered fireplace! Unlike many natural gas heaters, this one does not need to be vented to the outside. You still do require air circulation, so this wouldn’t be the best option for super small locations like a shed.

It has a five-setting temperature control, low oxygen shut-off-sensor and it is 99.9% fuel-efficient, making it one of the most energy efficient heaters for a basement or garage.

The unit does not require any electricity and anyone can easily install it as a wall mount unit or as a free-standing unit. The CSA certified heater also helps you heat your workshop, basement or garage, preferably a room whose size is 750 square feet and it comes with a limited two-year warranty.

It also comes with several safety features. The auto shut-off option for when it is accidentally tipped over, auto shutoff when the pilot light is out, or even if it senses levels of low oxygen it will cut out. It also goes on to give a fold-down handle that helps you reduce the storage space.

As long as you place it an enclosed space and it has the proper fuel connection, the heater will provide you with a solid heat source.

What We Like

This unit comes with a Mr. Heater adaptation kit, which makes installation manageable whether you’re doing it yourself or having someone do it for you.

What We Do Not Like

Some people reported a bad smell from the unit, but fortunately it seems to go away after a few uses.

5. The Heatstar by Enerco F125444 Garage Heater

The Heatstar by Enerco F125444 Garage Heater

Specification Summary

Best Choice ForOverhead Natural Gas Heater
Type of FuelNatural Gas
WattsN/A
BTUs25,000 BTUs
Heating Area Up to 600 sq.ft.
Price Range$$$
WarrantyYes – 2 Years

For the guy or gal who works out of their garage daily, professional-level overhead heat will make a world of difference for your comfort. This Heatstar by Enerco is a great overhead natural gas heater option for your 2-2.5 stall garage.

It conveniently comes with a thermostat that you can have wired into your garage and operate without reaching the unit, but the unit itself doesn’t require any electricity. Because it is ceiling-mounted and requires hook-up to a gas line, the installation itself must be done by a licensed technician. Once installed though, the Heatstar will give you constant, radiant heat even when the power is off. For a person who spends a lot of time in their garage with insufficient heat (like my dad in Michigan in the 1990’s with a tiny space heater), this heater would be the ultimate gift!

Heatstar’s 25,000 BTU radiant heater is one of the most fuel-efficient garage heaters and is another great choice for those wanting to utilize natural gas. It heats up to 600 sq.ft although in testing we found the warm dissipates after about 400 sq. ft.

It is one of the most economical options for workshop heating and has the ability to be hooked up to a 40 lb gas tank. The system needs to be placed 7-9 feet above the work area and be mounted overhead and should have a clearance of 14-15 inches to the top. This may seem complicated at first, but Heatstar provides an easy to follow instruction manual.

It is perfect for workshops, garages, barns, utility, storage sheds, loading docks, and construction sites.

What We Like

We love that a thermostat is included and that the temperature doesn’t need to be adjusted on the unit itself.

What We Do Not Like

If your garage doesn’t have any ventilation to the outdoors (like a super insulated door), you may find condensation built-up on your windows, etc. We recommend a carbon monoxide detector to help with any indication that you may not have enough airflow.

6. The Mr. Heater F232000 MH9BX Buddy Heater

The Mr. Heater F232000 MH9BX Buddy Heater

Specification Summary

Best Choice ForPortable Garage Heater
Type of FuelPropane Gas
WattsN/A
BTUs4000-9000 BTUs
Heating Area Up to 225 sq. ft.
Price Range$
WarrantyYes – 1 Year

If you’re looking for a portable option to help with your garage projects, but also would like a heater for other options, then the Buddy by Mr. Heater is an excellent choice for you. We rate it the best portable heater for garage because we believe its versatility makes it a home must-have!

Unlike many propane gas heaters on the market today, the Buddy is certified safe for both outdoor and indoor use. It holds just a 1lb propane tank, so its not ideal for long-term use, but the occasional tinkerer will truly appreciate this product.

I love how safe and reliable this product is. You can use the Buddy to help heat up a tent of up to 200 feet without having to worry about starting a fire or breathing in too much carbon monoxide. Its sturdy handle makes it perfect for any situation in which you will need quick heat – my favorite being use during tailgate season!

The built-in safety features are great additions although care still needs to be taken.  It also has a low-oxygen safety shut-off (ODS) and tip-over safety shut-off. The system still gets hot, especially at the front guards so extra care needs to be taken when used in a tent or RV. The ceramic burner tile is mounted with shock absorbing insulation for durability and easy replacement. The adds an extra layer of safety, but once again, please take care.

It comes with a fold-down handle that significantly lowers the footprint and storage space of the device. The high-temperature wire guard protects you from the heated surface but as stated above, it does get hot when constantly running. It also features the swivel regulator that makes it easy for hose installation and the integrated Piezo sparkling mechanism that has four position controls. You can view more of these options in a video here.

It is the perfect garage heater option for camping, tailgating, sporting events and small garages. If you are looking for a quick and economic garage heater for small spaces that will keep you warm and safe, then this garage heater is your best buy.

What We Like

We love that you can literally take the Buddy by Mr. Heater anywhere. It’s safe to use indoors or outdoors and will make a great back-up supply of heat if your furnace goes out.

What We Do Not Like

The fuel tank on the Buddy is only 1lb. That means it only provides about 4 hours of solid heat before it’s time for a refill.

7. The King KBP1230 Unit Heater

The King KBP1230 Unit Heater

Specification Summary

Best Choice For120V Garage Heater
Type of FuelElectricity
Watts2850-5000
BTUs15,000 BTUs
Heating Area Up to 600 sq. ft.
Price Range$$$$
WarrantyYes – 5 Year

If you grew up in Michigan like I did, then you already know that it’s going to take a whole lot more than a little space heater to warm up a garage or workshop in the dead of winter. As a teen, I didn’t get the luxury of parking in my parent’s heated garage and would often have to run my car for a solid twenty minutes before the ice would even start to melt away. But, I digress!

When it comes to the best 120V garage heater, we chose the King KBP1230 for its capacity to heat large areas and keep them warm even when the frost is biting hard outside. The company suggests that installation is easy and can be done in as little 30 minutes. And if you’re having difficulties, they will try to walk you through the process over the phone so that you can get the heat you need fast.

King has been a trusted brand in the US for over 60 years, and not only do they still make all their parts right here in the United States, but they also offer a 5-year warranty on their products. This another quality wall or ceiling mounted option. This brand focuses primarily on commercial purposes although larger residential spaces would be ideal for these products.

This company is proudly ‘Made in the USA’  and has designed its heaters for rugged performance. They feature a flow-through design that efficiently moves air by pulling air from the back and discharges it out the front, easily heating ample spaces up to 600 sq. ft. King electric offers unique ‘Pic-A-Watt’ adjustment in their steel fin elements so you can determine which size is best for your room and heating needs.

It also features a patented Smart Limit Protection system that automatically shuts the power off to the heater in case of an abnormal event and must be manually reset for safety. A summer fan switch has been added to keep you comfortable year round.

What We Like

We love how warm and cozy this heater makes garages! Whether you’re working on personal projects or keeping employees warm, this heater makes a great addition to any garage.

What We Do Not Like

The thermostat on this unit is built-in, so depending on where you mount it, it might become hard to reach and adjust.

8. KEYNICE Electric Table Heater

KEYNICE Electric Table Heater

Specification Summary

Best Choice For110V Garage Heater
Type of FuelElectricity
Watts450W-950W
BTUsN/A
Heating Area Small – Personal space
Price Range$
WarrantyYes – 1 Year

Now that we’ve looked at some of the bigger options, the best 110V garage heater is this model by KEYNICE. This portable, personal heater is great for pointing heat directly where you need it, and it has a built-in oscillating fan that will give you a wider range than most personal units. It’s also approved for indoor use, so whether you’re keeping your feet warm while sitting at a computer or working with tools outside, the KEYNICE model will help keep you comfortable.

I like that this KEYNICE model is not only aesthetically pleasing, but it’s also super affordable at under $50. It would make a great addition to any room that needs a little extra boost of heat. It’s also relatively quiet so it won’t disrupt your work by any means.

This electric heater has low noise of about 30db when it is working, and it does not disturb you when resting, reading, or working. It is comfortable to enjoy and give can help give you a high-quality nights sleep.

The unit uses a dual protection system whose design comes with the over-heat protection design for thermal control. It cuts off the power when the temperature is over-heat. It also has a rotation to the wide-angle heating. When you go ahead to press the rotation button on the top panel, the heater will rotate at a 90-degree angle to offer warming air more widely and evenly.

It is the perfect portable electric heater for personal space, your home, the office, and school.

What We Like

We love that this portable option plugs into any standard outlet and provides constant heat on an oscillating fan.

What We Do Not Like

The thermostat on this model only offers two options – high and low. Pickier consumers may want to choose a more flexible option.

9. The Heat Storm Mojave Infrared Space Heater

The Heat Storm Mojave Infrared Space Heater

Specification Summary

Up to 200 sq.ft
Best Choice ForInfrared Garage Heater
Type of FuelElectricity
Watts750 – 1500W
BTUs5200 BTU
Heating Area
Price Range$$
WarrantyYes – 1 Year

The best-infrared garage heater on the market must be this Mojave Heat Storm for its convenience and versatility alone. It’s a compact unit at just over 10lbs, yes, but it puts out big heat. It can heat about 500 square feet by itself, and up to 1,000 square feet with supplemental help. I love how portable this unit is. It has a solid carrying handle and can be plugged into any standard outlet. Not only that, but it’s incredibly quiet.

You can use the Heat Storm in your garage or in your house and you will be just as pleased with its efficiency. The unit has two built-in air filters on either side that can be removed/cleaned to make sure that you are always running at top quality.

Perhaps my favorite feature of the Heat Storm is that not only does it have a nice digital LED display that can control the unit, but it also has a remote control. This, paired with its lightweight, makes it an especially good space heating choice for senior citizens or those who are less mobile.

This infrared quartz heater was designed to take the heat to any room up or downstairs without breaking your back. It boasts a fragrance feature that leaves your garage space smelling crisp and fresh, making your room cozy as it can be. It also features a patented heat exchanger with HMS Technology that combines with humidity in the room to provide soft, safe heat without reducing oxygen or moisture.

It helps keep the energy bill low since it automates how much energy you need to keep your room warm—so rather than consuming excess energy, this heater only uses the required power and will not cut on and off.

What We Like

The Heat Storm is super portable and a great option for those who can’t lift heavy objects. It has a lot of power for a little guy!

What We Do Not Like

Although this unit puts off great heat, it should not be left unattended.

10. The Mr. Heater Corporation MH70KFR

The Mr. Heater Corporation MH70KFR

Specification Summary

Best Choice ForKerosene Garage Heater
Type of FuelKerosene
WattsN/A
BTUs70,000 BTU
Heating Area 225 Square feet
Price Range$$$
WarrantyYes

Kerosene garage heaters are not as popular as the other varieties, but they are still a great option for fast heat in an effective manner. This Mr. Heater kerosene heater holds almost 3 gallons of fuel that will provide lasting heat for about 6 hours. Many reviewers commented that they chose this model over sever forced air heaters because this one is so quiet you hardly would know that it’s there. Alternatively, it can also use diesel fuel just as well.

It should be noted that even though this heater runs on kerosene, it also requires an electrical hookup. The cord attached to the unit is less than a foot long, so you will also need to plan on purchasing a dedicated extension cord.

It has a robust frame with ergonomic handle and heavy-duty wheels that safeguard the motor and ensures portability. It also has an easy to operate thermostat controls the heat output, thus helping manage fuel consumption. Packed with versatility and safety features, the MH175KTR is perfect to use for industrial and domestic applications.

What We Like

This isn’t a little space heater. At 40 lbs, this unit is big and built to heat up an open workspace like a garage or barn. Some users even mentioned that with any more power that they would be too hot!

What We Do Not Like

This unit should only be used in open spaces, so if you’re planning on using it in your garage it should only be run with the doors open.

Types of Garage Heaters

There are different garage heater models; these are some of the most common types:

Fan & Forced Air Heaters

A fan-forced heater works by drawing air through the system through a fan, then goes ahead to warm it with the heating elements, and lastly, blows the heated air back into the room. It is capable of efficiently heating any enclosed space you might require heated up fairly quickly. However, you need to also keep in mind that just because a fan forced air heater blows air — and dust — they may not be the most practical option when you are painting or finishing wood projects.

Infrared or Radiant Heaters

Instead of heating the air, the infrared or radiant heaters work by directly and swiftly warming the objects you direct them at including floor spaces, work surfaces and you (if you happen to be underneath one.)

These heaters do not include vast spaces as quickly as fan-forced air varieties, but they provide a steady source of warmth — without having to blow air or stir up dust particles, making them a suitable option for when you are painting or finishing up wood projects.

Gas Powered

The gas powered heaters use gas or fuel instead of electricity. They can heat a garage quickly, and since they do not require an electricity supply, they are also highly portable and economical. They work on the principle of an extremely controlled flame within the unit heating the air inside before a fan pushes the heated air out into the room.

They are common in the industrial application works, and they can produce large quantities of heat for a considerable period.

However, you need to ensure you take precautions when operating them since they can be hazardous to use in an enclosed space.

garage needing heating

What Fuels Garage Heaters?

There are various types of garage heaters depending on the power source they use. Some include:

Kerosene

These are space heating devices that are portable, perfect for homes and garage and use kerosene to heat up. They are an ideal backup plan especially when you consider the fact that during winter the power might be off and thus you can always go for them.

There are two types of kerosene heaters namely: the radiant kerosene heater and the convection kerosene heaters. The radiant kerosene heaters are mostly rectangular, and they have a reflector or even fan for directing heat in one direction. They are also the best option for small spaces.

Convection kerosene heaters, on the other hand, are cylindrical. Their fuel tank is usually on the bottom and the wick on top. Most also tend to have a grill around the heater for added safety. Convection kerosene heaters even distribute warmth upwards and outwards. Their design is mostly for large areas or multiple rooms.

Propane

When you do not have a gas line, propane heaters are the better alternative even for those who are unable to use an electric heater. One thing, however, is that propane canisters require you always to do some refilling, and unless you have a backup plan at hand, you could easily be left in the cold without warning. These can be a great option for anyone considering an outdoor patio heater.

Natural Gas

Natural gas heaters are usually the most cost-effective when it comes to heating large spaces over extended periods of time. They undeniably offer quick and efficient heating, and if you already have a gas line in place, then this is the ideal option. You can also shut down them rapidly to ensure everything cools off quickly.

Electric

These are the most popular heaters due to their ease of use. They are more expensive to run, but they also have considerably fewer safety concerns compared to fossil fuel varieties. They come with automatic turn off switches in most cases, and recently, these units have become so powerful that they are the most sought-after option for heating larger spaces as well. Some of the most common types include the infrared heaters, the ceramic space heaters, the oil-filled electric heaters, and the electrical panel heaters.

Sizes, BTU’s & Heating Areas Explained

A BTU is a unit of energy used on an international basis in both heating and air conditioning industries.

When used as a unit of power, it is usually used per hour commonly written as “BTUs per hour.” BTUs per hour refers to the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit.

To convert watts to BTUs and vice versa, here are the conversion ratios:

One watt=approximately 3.41BTU/hour
1000BTUs/hour=approximately 293 watts

To calculate the size of the heater you need, you need to start by working out the square footage of your garage. You do that by measuring its length and width in feet.

You multiply the length and width together to determine the area of your space in square feet:

For example, 50-foot x 50-foot space = 1000 square feet

Then you head on to calculate the BTUs. One measures a garage heater’s output in BTUs. So, in general, you need 20 to 40 BTUs per square foot to warm your garage, even though that depends on your level of insulation and climate as well.

Depending on where you live, you may need a different Btu per square foot in your home to keep it at a comfortable temperature.

In Climate Zone 1, you need to have around 30 to 35 Btu per square foot of your home.

In Climate Zone 2 (which includes areas such as Florida and Louisiana) you need to have at least 35 to 40 Btu per square foot. In Climate Zone 3 (such as Arizona, California, Georgia, and Mississippi) you have around 40 to 45 Btu per square foot is required. In Climate Zone 4 (Missouri, Delaware, Kansas, and Kentucky) you’ll need 45 to 50 Btu per square foot.

Finally, climate Zone 5 (such as Connecticut, Illinois, and Indiana) calls for about 50 to 60 Btu per square foot of heatable space.

Here is a visual guide to help you check out see what kind of heater would work best for you depending on the room size.

Area (Square feet) BTU’s Watts
Up to 500 square feet Up to 25,000 BTUs Up to 5000 Watts
Up to 250 square feet Up to 15,000 BTUs Up to 3000 Watts
Up to 150 square feet Up to 75,00 BTUs Up to 1500 Watts

Volts & Watts Explained

When you are performing home upgrades or buying a new garage heater for your most treasured haven, you should consider factors including volts, watts, and BTUs.

When you do not fully understand volts, watts, and BTUs, you have a high chance of being stuck with a heater that does not produce enough heat to warm your room, or worse yet, you can find yourself with a heater that will not fit into your standard electrical outlet.

Voltage

Voltage or volt is the work needed per unit of the charge against a static electric field to move a test charge between the two points.

In SI units, it is work per unit charge, and it is expressed as joules per coulomb, where 1 volt = 1 joule (of work) per 1 coulomb (of charge).

The official SI definition for volt uses power and current, where 1 volt = 1 watt (of power) per 1 ampere (of flow).

In layman’s language, voltage is measured as the root mean squared value between two slots or holes in an electric outlet of the sort mounted in a wall.

In most countries in the west, the standard voltage of a power outlet is 120 volt, and it is rated for 15 amps. Therefore, for these regular outlets, one use any of the conventional 120-volt electric space heaters.

However, when it comes to larger appliances, such as industrial heaters, most of them are powered through 240-volt plugs, and you cannot power them through the standard plugs.

If they you tried to power these appliances by a 120 volt supply, then that means they would require more than 20 amps of current running through the wires.

The voltage from one hot wire to the other (commonly referred to as the line-to-line voltage) is 240 volts, and the energy from either of the cables to the neutral center-tap (known as the line to neutral voltage) is half of that.

You can find these 240-volt outlets in garages, building sites, and other industrial areas.

Watts

A watt is a unit of power equal to one joule of energy per second. According to the wiki, watts are used to quantify the rate of energy transfer.

In regards to wattage, about all 120-volt space heaters are rated up to 1500 watts at the maximum setting, and there is a 10/1 ratio of watts to square feet heated.

So, for example, if you have a 1500 watt space heater (120 volts), that means it can heat a garage room of 150 square feet, and if your friend or loved one has another that is rated at 5,000 watts that means that it can comfortably heat an area over 400 square feet.

So, in conclusion, if you have a 450 square foot garage or basement, it means you would need to purchase three space heaters for sufficient heating.

How To Install An Electric Garage Heater

Installing a 220/240 volt electric garage heater is easy as long as you follow the instructions given.

The first thing that you will need to do is to make sure that there is correct wiring in place so that you can securely install the heater. You need to do some:

Prep Work

You need to make sure that there is the correct wiring in place so that you can securely install the heater by:

  1. Install the outline of sheathed cabling from your main power box to your thermostat unit.
  2. Take the cable from the thermostat and move it straight to where you want your garage heater installed.
  3. Take two screws and use them to lock a junction box to the place you want to install the heater.
  4. Make sure that you pin the cable in place using electric cable straps.
  5. Ensure that you turn off the circuit breaker.
  6. Take off the panel cover from the circuit breaker and place the double circuit breaker.
  7. Take the wire strippers and use them to remove the sheathing off the cable in the panel box.
  8. Connect the ground to the bus wire. The bus wires need to run to the terminal lugs on the breaker.
  9. It is essential to keep in mind that the breaker lugs are live so you should take extra care and not touch them.
  10. Ensure that you color the wires so that they match regulations in your residential area.

Wiring the Thermostat

  • To fit the thermostat, you need to take off some of the sleeves from both ends of the cable that are not leading to it.
  • It would help if you then colored each of the wires so that they meet the regulations of your home area.
  • Try to pinpoint the location of the wires labeled L1 and L2 and then make sure that you attach the two wires that lead to the circuit breaker.
  • Use the wire nuts to cover the connections.
  • Attach the ground wires to the thermostats ground wire, which are usually green in color.
  • Screw the thermostat onto the wall.

The Final Wiring: the Garage Heater Wiring

  1. Attach the cable to the junction box by scraping off some of the sheathings.
  2. Ensure that you have one piece of black insulated wire and one green insulated wire running through the duct.
  3. Make sure that you have the strip around an inch of the wires from all the cables in the junction box in the ceiling, which would be a total of five coils.
  4. Twist the black wires together and then cap them with a wire nut.
  5. Color the wires again, so that they match your local regulations.
  6. Twist the wires and ensure that you cap them with a wire nut.
  7. Place the shield back on the box.
  8. Look for the black heater wires and join them with the black supply wire.
  9. Connect the green wires for ground.
  10. Place the cover back on the junction box and make sure it is safe.

Helpful Hint

We have covered the installation process, but it is vital to read the manufacturer’s instructions and follow the given guidelines to install your new garage heater correctly.

Ensure that you regularly follow up to date wiring guidelines. However, if you are not sure about this, hire a professional.

Also, if you are looking to have some hardwiring, seek the services of a professional since it can be a challenging and complicated process, and if done it haphazardly, it could cause an accident.

I thoroughly recommend watching this youtube video for as guidance.

Indoor Heating Safety Guide

With sub-zero temperatures and winter storms, most people have opted to use portable garage propane and gas heaters as an alternative option for providing them with temporary heat, especially in areas hit by power outages.

However, in as much as these units are economical and useful during power outages, some emit CO thus, in one way another leads to Carbon Monoxide (CO) poisoning. So, before you head on to take your propane or gas heater, you need to follow these safety guides to the letter.

  • Ensure that you regularly read the manufacturers’ packaging and operating instructions for proper use and handling. Be sure to look for, and read any given information about the indoor safe use and safety features.
  • If you have any heater identified as ‘for outdoor use only,’ that means it burns fuel at a high rate, and you should never use it indoors or in your in tents, campers, residential garages, trailers, and other indoor spaces.
  • When using your gas or propane heater, make sure that you only use the approved fuel. Never use gasoline!
  • Do not fill a heater that is still hot and never overfill the heater. It would help if you allowed for the expansion of the liquid.
  • It would help if you also remembered that portable gas-fired heaters operate on fuel combustion and that you should place need them far from windows and air intakes.
  • Also, no matter how cold, no fuel-burning appliance, including indoor-safe machines, should be left unattended or functional while sleeping.
  • Last but not least, make sure that you have your vented space heaters professionally inspected every year. If your warmer is not vented correctly, or if it is not vented at all, or if it is blocked, separated, rusted, or corroded, dangerous levels of carbon monoxide (CO) can enter the home causing sickness and death. So be sure to do regular maintenance.

Frequently Asked Questions

How Do I Install A Hanging Garage Heater?

You need a few tools to do so which you can look up or ask your local store attendant to guide you. You can then:

  • First, you need to examine your garage heater. Many garage heater models have slots on top of the radiator that is used to hang it from the ceiling.
  • Measure the distance between the two anchor points on top of the garage heater. Mark out a spot on a ceiling joist in your garage and then make another mark at a distance you have just calculated.
  • Drill the holes and screw it in.
  • It would help if you then determined how far down from the ceiling joists you want your garage heater to hang and cut two threaded rods at this length.
  • Screw each threaded rod and tighten them down with your pliers.
  • Head on to hang the garage heater by mounting the threaded rods to the radiator through the mounting holes.
  • Last but not least, adjust the garage heater as necessary until it is level and tighten down the nuts used.
How Do I Install A Shop/Workspace Heater Vent?

In the case of natural gas heaters, one needs to vent exhaust gasses from the burners to the outside of the building. According to most claims, manufacturers recommend that you have an expert install the heater and connect the gas line. However, if you are into DIY, you can consider the size of the vent duct depending on the diameter of the vent flange on the unit.
You will also need to find the amount of required tube depending on the distance from the heater to the garage roof. You can then take up the measurements and obtain the pipe, do a roof flashing and vent capping at a heating supply outlet and voila! You will have vented your garage heater.

Do I Need Extra Insurance Cover After Installing A Heater?

Yes, you might in case there is an accident you might need fire insurance or theft insurance in case you are robbed of your heater. Speak to your insurance broker to find out if there are any additional requirements.

Can I Use A Solar Powered Heater For My Garage?

Yes, one can. A solar space heater gives your garage workshop a little kick of sustainable energy and allows you to be comfortably energy-efficient. Note that a garage heater is generally used in the winter when the sun’s rays are weaker (and the weather tends to be more inclement). This might mean that solar power will be less effective as there is not enough sunlight to power the heater.

Conclusion

Your garage can get cold during the rainy seasons or winter, a factor that ends up damaging anything inside the garage and means that you are less likely to use the space. A garage heater is an essential factor to consider since it will help maintain the temperatures, making them stable, and comfortable for you while also preventing damage to your other valuable items.

Amongst of all the garage heaters we have reviewed, the Fahrenheat FUH54 240-volt Garage Heater, 2500-5000-watt is the garage heater models we’d recommend. It features an automatic fan that kicks on when the heating element is warm and shuts off when it cools. It also has a ceiling-mount style thus helping you keep the floor of your garage space clear and, since it’s electric, there’s no need to mess around with gas, propane, or kerosene to supply power to the unit.

What are you waiting for? Get yourself a garage heater this season! Investing in the best garage heater today will allow you to use your garage throughout winter in comfort.

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