Best Electric Garage Heaters 120v / 240v For the Money: Reviews 2019

​​​Last year, we visited the Ortons to see what they had done with their garage. They had earlier asked for suggestions on how to organize their garage and were glad to show us the results.

When we got there, we were pleased to see that our plan had worked for them, but one thing grabbed our attention. The place was super cold! We asked them how they were coping working in such a low-temp environment, but they talked of something to do with “adapting” which didn’t seem like a fair excuse.

Mr. Orton even had a bad cold, and he admitted it might have been as a result of working late in such an environment.

If you’re here, we’re guessing it’s because your garage feels a little cold. Maybe you’ve even tried installing some form of insulation, but that has proven to be inadequate during fall and winter. If you’re living in a region whose temperatures are often on the low side, insulation is not enough.

Installing a garage heater is the best step to conquering the cold.

Don’t go anywhere. In this post, we’ll introduce to you some of the best electric garage heater 120v and 240v models and discuss ways in which you can make your garage warmer.

Things to Consider Before Buying the Best 120v / 240v Electric Heater for Garage

When the cold season comes, you want to be sure that your heater for garage will deliver. But choosing a powerful, reliable heater isn’t always easy. There are numerous brands and models, and if you’re not careful, you can get the wrong one.

To prevent that, we’ve listed a couple of considerations you should make when looking for a heater for your garage.


Some garage heaters are mounted on the wall, others on the ceiling, and yet others are portable meaning they come with a stand and can be placed wherever the user likes.

If you want a fixed rather than portable unit, you’re better off getting something that is both wall and ceiling mountable. It’d help if you got a unit that comes with mounting hardware including a bracket.

For those of you who need optimal versatility, the perfect unit is one that is portable; a tagalong unit that you can place wherever you want.

Electrical installation

Some heaters are to be hardwired while others are to be plugged into a socket using a power cable. If you aim to get something industrial-grade that will heat a big space, it is almost inevitable that the kind of heater that suits you needs to be hardwired.

Again, hardwiring reduces the chances of overloading a fuse and blowing it, so it’s a preferred choice among workshop and garage owners. If you don’t have the needed wiring skills, be sure to have an electrician do it for you.

The benefit of purchasing a heater that plugs into an outlet is that the installation is pretty fast and simple, eliminating the need to get an electrician.

Also, keep it in mind that some machines require 120 volts while others require 240 volts.

Power source

There are two main power sources for space heaters – electricity and combustible fuel like propane or natural gas. While each has its risks, those that use combustible fuel present a bigger risk of inadertent fires.

Moreover, they can release fumes that are harmful to people and the environment. The necessity for extra venting might require you to pay more money for installation.

Electrical models are obviously safer and cheaper to install than the ones using combustible fuel. We recommend going for a model with overheat protection to reduce the risk of fires even further.

The size

The heating capacity is measured in BTUs, and for each square foot of space, you need at least 20 BTUs.

So, before getting a heater, you may want to consider the size of your garage in square feet. Just measure the length and the width, and by multiplying the figures, you’ll get the size in square feet.

Supposing you get the length and width to be 30 and 20 feet respectively, that is 600 square feet. We imagine that to be a 2-stall garage.

Multiplying 600 by 20, you get 12000 BTUs. That’s the minimum amount of heating you need for this space. Perhaps the model you’re considering to purchase offers 21000 BTUs or another figure greater than 12000. There’s nothing wrong with that as long as its temperature is adjustable.

Those are the main factors to consider but don’t forget to look at the construction, which denotes the durability. A heater made of stainless steel or other sturdy materials will last. Also, check the machine’s ease of use.

That aside, it’s time to look at the reviews.

Our Top 10 Best Electric Garage Heater 240v / 120v

1. Dr. Heater DR966 240-Volt

If you’re looking for an affordable heater for your 2-car garage without being too fussy about the features, the Dr. Heater 240-volt DR966 will be the ideal choice.

One thing you will definitely like about this 240v garage heater is the uniform heat distribution that it issues. The heating elements are composed of spiral steel metal sheaths and combining that with the 8-inch fan, you get an airflow that is well evened out.

The unit’s ability to maintain the temperature at a certain comfortable level is amazing. One user we spoke to said that she’s able to keep the heat level of her 2-car garage at 65° on a 12° day.

If your space is 1200 sq.ft or less, the 20500 BTU that this heater provides should be enough to provide consistent warmth. What’s more, the thermostat is adjustable.

You can set it to low (down to 3000 watts) or high (up to 6000 watts) to provide the degree of heating you need.

Apart from running the cable, the installation for this one is really easy; more like installing a ceiling fan. You can mount it to the wall or the ceiling, and with its gray epoxy paint, it will look good in either case.

An 8-gauge wire and a 35-amp circuit breaker will do, and remember, if you cannot do the wiring, you can always get a local electrician to do it for you.

If you hate noisy HVAC systems, this unit will be a great selection. It runs pretty quietly and won’t distract you while you work. Consideration all features of this product we make a decision this i one of the best electric garage heater 240v.

Highlighted Features:

  • Provides 20500 BTU drawing 25 amps
  • Adjustable thermostat with low and high settings
  • Provides uniform heating
  • Can be mounted to the ceiling or the wall
  • Relatively quiet

2. Fahrenheat FUH54 Garage/Utility Heaters, Neutral Gray

The Fahrenheat FUH54 runs so quietly; you will hardly notice it is on while you’re working. This robust industrial-quality heater is suitable for basements, workshops, and garages, with a capability to maintain a temperature at any level between 45 and 135 °F.

You can use the knob at the front to adjust from 2500 to 5000 watts, and what’s amazing is that no matter the setting, the unit works pretty quietly.

If you want something that can direct the heat to a particular area in the garage, then this is it. It comes with adjustable louvers, and by tweaking these, you can easily send the heat to a specific area, perhaps where you’re working from.

The manufacturer has made certain that mounting is easy. In that regard, the heater is fitted with a mounting bracket. With this, you can easily and conveniently install your unit vertically or horizontally.

This bracket particularly makes it super easy to mount the heater on the ceiling. All you got to do is drill a hole and use a screw to fasten the bracket to the ceiling joist, so the unit stays securely suspended up there.

Getting the bolts won’t be a problem because you already have a couple lag bolts included in the package.

The simple but robust construction of the appliance is also worth noting. Those that have used it for a long time say that it’s not affected by rusting and that they expect it to keep going for years. The simple construction also makes cleaning a breeze.

Highlighted Features:

  • Bracket for easy mounting
  • Adjustable louvers that make it possible to direct the heat to the desired area
  • Simple design that makes cleaning easy
  • Adjustable between 2500 and 5000 watts
  • Heavy-duty construction

3. Optimus H-9010 Utility Heater120V

For those of you who have limited space, the Optimus H-9010 is the ideal heater. This unit is pretty compact, and it measures just around 7 pounds, which also makes it easy to lift and install.

What we loved about the 120v garage heater is that it’s not just a heater; it’s a lightsource as well. So, if you’re working in a poorly lit area and you need some extra illumination, then you needn’t buy an extra bulb. The one that is built into the appliance might be enough.

It’s quite interesting how the gadget works. There’s a cord running from within the unit, and when you pull it once, the light goes on.

Pulling it the 2nd time turns on one heater element, pulling it the 3rd time turns on the second heater element, and pulling it the 4th time turns everything off.

Being a radiant heater, the appliance provides the sort of heat we get from the sun when it shows up on a cold day – uniform and refreshing. The halogen light serves to enhance the ambiance for a nice experience at work.

For whom is it designed? For a 2-stall garage owner who needs to raise the temperature on a cold day.

This is a budget heater so you wouldn’t expect it to perform like a premium-grade heater, but if you can get two of them, which will cost you around 160 bucks (still pretty cheap), then you’re assured of excellent performance. However, if you’re on a tight budget, one unit will be enough.

Highlighted Features:

  • Overheat protection
  • Halogen light for added illumination
  • Wall or ceiling mountable
  • Easy and exciting operation
  • Inexpensive
  • Compact and lightweight

4. Dr. Infrared Heater 240V

For those times when the temperatures are below freezing, this is one heater you can depend on for the warmth. It can supply between 14,335 and 19110 BTUs, thus allowing you to maintain temperatures of up to 90 degrees!

The 240v garage heater has a built-in adjustable thermostat and the knob at the front lets you set your preferred temperatures by increasing or reducing the power or rather the wattage.

The power requirements of this appliance are – a 240 volt outlet. Note, a 120V outlet isn’t sufficient for this.

Weighing in at just about 19 pounds, this Dr. Infrared Heater is an easy install, as it’s not too heavy to lift. What’s more, there is a mounting bracket at the top, and you can hook this to a suspension cord at the ceiling or the wall.

It needs to be hardwired to the garages power supply and what you need are a 10-gauge extension cord and a 30-amp circuit breaker.

Operating the machine is pretty easy as the power/temperature adjustment knob turns smoothly. The on/off switch for the thermostat also works great.

One thing is for sure – the design is not very attractive, so if you’re getting this for your house, it will look a little weird in there. But for the garage or the workshop, the design is okay.

Another complaint is the noise. At times the heater will produce some vibrations that would disturb someone who hates noise but remember, you get what you pay for. And at the price, the vibrations aren’t a deal breaker.

Highlighted Features:

  • Great heat output – up to around 90°
  • Versatile – for garage, workshop, construction site
  • Sturdy construction with an enclosed motor
  • Lightweight
  • Mounting bracket for easy installation

5. NewAir G73 Heater 240-volt

If you’re looking for something that to help you warm up a space of up to 750 sq.ft., the NewAir G73 Heater will work splendidly. With a heating capacity of around 17000 BTU, the unit is able to warm up a 2-stall garage space efficiently.

Some people that have used space heaters before have complained about units that almost burned down the structure.

These glitches are normally due to poor manufacturing standards. The UL steps in as the world-recognized testing body and issues a UL certification to manufacturers that meet good safety standards, and guess what? The NewAir G73 Heater has such certification.

With this machine in your home, you needn’t worry about accidental fires and other issues related to the heater’s design.

The built-in thermostat detects the temperature, and when the temperature is high enough, it shuts off automatically to prevent overheating.

Featuring a sturdy stainless steel construction, the unit is able to last a long time. The motor is well enclosed in a cage, thus keeping it out of harm’s way.

The construction also features a bracket fitted at the top, and this makes it easy to mount the unit either on a wall or a ceiling.

As for the aesthetics, we think the unit is elegant enough for an office, so we can say it’s a versatile tool that can be used in not just a garage but other work places.

Highlighted Features:

  • Robust construction for longevity
  • Comes with a wall mount
  • Elegant design
  • Warms up to 750 sq.ft.
  • Automatic shut off thermostat for overheating prevention
  • UL-certified

6. King KBP1230 Heater 120V

We’ll say it again – in the world of heating systems, you get what you pay for.Our number six candidate of best 120v electric garage heater is King KBP1230. This 120v garage heater is one of the high-end models, but the performance is spectacular.

The first and most important benefit is that of the ability to maintain uniform and efficient heating throughout a 2-car garage with a size of 600 square feet or so.

Air flows from the back through the heater, and once it emerges through the front side, it’s heated enough to provide the warmth needed. This smooth flow is the secret behind the evenness of the heat supplied.

The unit needs just around 2850 watts and a voltage of 120 volts (though there’s a 240V option) and with that, it can raise the temperatures above 60 °F no matter how cold the weather is.

When it comes to temperature control, this unit is awesome. Unlike cheaper models, which have a knob that you turn to high or low, this appliance has degree labels around the knob to make it easy for you to set your preferred temperature level. That eliminates the trial and error temperature setting.

 And lastly but not exhaustively, the unit comes with an innovative limit protection feature that is actually patented. This feature cuts the power automatically in case something abnormal happens, thus protecting you and your property.

The King KBP1230 comes with the original Pic-A-Watt elements. This exclusive feature allows you to tailor it to your space’s specific needs. If the area is small, you select a low wattage, but if it’s big, you choose a higher wattage; whatever suits you.

Highlighted Features:

  • Patented smart power safety feature
  • Labelled temperature control for precision
  • Rugged design
  • Smooth and efficient air movement for uniform heating
  • 5-year warranty
  • Warms up to 600 sq.ft.

7. Dimplex DGWH4031G 240 v

Need a good 240-V heater for your garage, basement or workshop? Try the Dimplex DGWH4031G. There are thousands of people using this unit, and from our research, we can tell you that most people are happy with the way it works.

First off, the quality is superior. The heating elements are made of stainless steel, and with the overheating protection offered by the automatic temperature regulation, the parts remain in a good shape for a long time.

Hence, if you’re looking for a durable unit that will serve you for years, this is it.

Many homeowners are concerned about energy costs while purchasing electronic items.

The good news is that the Dimplex DGWH4031G uses only up to 4000 watts and with the energy-saving capabilities it’s designed with, it’s definitely a good choice for someone who wants to save power.

The auto shut off feature is one of the power-saving features of this unit.

Heating effectiveness is yet another awesome reason for getting this tool. It’s able to deliver over 13000 BTU and can raise the temperature of up to 500 square feet of room to a maximum of roughly 75 °F.

This heater measures around 11 by 7 by 9 inches, which most of us would agree is compact for a heater, right? In addition to that, it weighs in at just 18 pounds, which makes the installation easy and saves space.

The only issues with this unit are that it’s a little noisy (though not bad for the price) and that the temperature adjustment knob is located at the back.

Highlighted Features:

  • Stainless steel elements for durability
  • Issues up to 13,640 BTUs
  • Automatic temperature regulation
  • Free wall mount
  • Space-saving design
  • Power-saving features

8. Lasko 675919 120V Heater

The Lasko 675919’s cool design is what got us interested in it. It has a splendid yellow-black color scheme and a beautifully-designed stand that enables it to sit stably wherever you place it.

With the unique pivot feature and the little weight of just 8.75 pounds, the unit can be placed anywhere, and thus it can be used to provide the warmth wherever desired.

The grip is rubberized, further making it easier to bring along the heater wherever you’re working.

If you’re looking for the best garage heater 120V to be the perfect tagalong in the construction site, then this is it.

In the garage, workshop, or construction site, it is common for tools to fall or get thrown around, and it’s realistic to say the heater will get accidentally smacked at one time or the other. But that’s not much of an issue when you’re using the Lasko 675919.

This 120-volt heater has a tubular steel base, and the handle/stand also provides some protections against impact. The tool’s rugged construction ensures you get to enjoys its service for longer.

There are two knobs on the unit’s back. One is for the power, and the other is for the temperature. The power helps you control the thermostat with three adjustable settings, hence enabling you to enjoy personalized comfort.

When it comes to energy efficiency, this heater is awesome. You can spend about 35kwh per 24 hours, which is way lesser than what most other units spend.

Oh, and the heating effectiveness is also good; it warms up a 2-stall garage space and can maintain the temperatures at around 50.

Highlighted Features:

  • Beautiful design
  • Durable construction
  • Rubberized rubber grips for easy movement
  • Portable
  • Innovative stand for stability
  • Adjustable thermostat

9. Cadet RCP502S Portable Garage Heater 240V

Most of the heaters we’ve come across have to be hardwired to the house’s electrical supply, but hardwiring isn’t very convenient if you don’t have basic electrical wiring knowledge.

If you’re not up for the task of hardwiring a heater, then consider getting the Cadet RCP502S, because, with this one, all you got to do is hook the power cable to the socket. It needs 240 volts and a 30-amp receptacle.

Here’s another advantage – the fact that the machine is not to be hardwired and the fact that the provided cord is six feet long means the unit is portable. You can place the unit at different spots while working.

The 240v heater comes with a bracket, which can be used in two ways. You can either use it as a floor stand to support the machine, or you can use it to mount the heater to the wall of the ceiling.

One of the most amazing things about this machine is that it can be used either as a heater or a fan for freshening the air.

You can launch this function by turning off the heat switch and letting the fan switch to stay on.

Another great feature is the automatic shut off feature. Cheap heaters can overheat and become a fire hazard, and those of you that have used such models know just how dangerous they can be. A high-class model like the Cadet RCP502S helps you avoid such unnecessary risks.

Highlighted Features:

  • UL certification
  • Automatic shut off feature for satety against overheating
  • Can be used as a heater or as just a fan
  • Bracket can be used as a stand or for mounting to the wall
  • Portable
  • No hardwiring

10. iSiLER Portable Indoor Heater 120V

From the lightweight nature and the high portability to the safety provided by the overheat protection and the great design of the iSiLER Portable Indoor Heater, the reasons for getting this unit are endless.

Almost everyone using this model is impressed with it, and you could soon join the huge list of happy customers. 

The reliability and safety of this best electric garage heater 120v is the first reason why we believe you should get it. It’s made from fire-resistant materials and high-grade ceramic heating elements that don’t use oxygen and thus don’t produce flames.

Moreover, the heater is able to self-regulate and with the automatic feature for preventing overheating, the safety is extremely dependable. The fact that oxygen isn’t used and there are no flames produced creates an environment that is not only comfortable but also healthier.

If you live in an area that is very cold, this unit might be just what you need. It can maintain the temperatures between 42 and 95 degrees Fahrenheit, and the best part is that you get to set the temperature yourself with the thermostat dial.

Although the unit is a real power-saver, it’s able to heat up a room very quickly, thanks to its 1500W output.

With it, you can evenly warm up a 108-square foot space. For a garage, you’d probably need two of them but for a bedroom, living room, study, and so on, one unit will be enough.

The little 1500 watt heater for garage features a fantastic design, and therefore, it can be used anywhere.

Highlighted Features:

  • Lightweight (2.6 pounds) and portable
  • Even heat distribution
  • Great design that suits any décor
  • Safety features for overheating prevention
  • Operates very quietly
  • Ergonomic handle for easy movement
  • Heavy-duty construction that lasts

11. King Electric KB2410-1-B2-ECO 240V

Having to use the ladder to turn the knob every time you want to adjust the temperature isn’t very convenient, is it? What if we told you the King Electric KB2410-1-B2-ECO offers you a way to avoid that?

This incredible 240v heater comes with a remote control, making it possible to adjust the settings, hence eliminating the need to use a ladder if the unit is mounted on the ceiling.

But that’s not really the coolest part. What you will really love about this machine is its ability to do what it is built to do.

The heating element is made of spiral fins brazed around copper, and the whole thing is formed into a coil. The element is then positioned strategically in the air stream, and the result is heating that is superbly uniform.

This unit is worth thrice as much as the regular unit, but the performance it offers is unmatched and definitely worth the cash.

The electronic thermostat offers a 2-stage heating with unparalleled energy efficiency. You can set the unit to go into eco mode where it will automatically use the low-watt setting to save energy. Moreover, you can shut off the heater and run the fan-only mode to save power even more.

In case there’s an abnormal power-related event, you’re assured of safety as the smart limit protection feature cuts the heater’s power supply automatically.

Need to heat a large space perhaps a 3-car garage? The high-power setting of 10000 watts allows you to heat spaces of over 1000 square feet.

Highlighted Features:

  • Remote control
  • Unmatched energy-saving capability with eco mode
  • Can warm up a space of over 1000 sq.ft.
  • Comes with wall mount
  • Elegant design
  • Innovative heating element for superbly even heating
  • Easy to install

How to Install an Electric Heater in Your Garage

As stated before, most garage owners prefer hardwired garage heaters because they allow them to operate other electrical tools without overloading and blowing a fuse.

So, we’re going to look at the method of installing a hardwired heater. Besides, installing models that are plugged into the wall outlet is straightforward. Let’s get to it.

Step by step process of installing a garage heater

Step 1: Get a heater that suits you

You don’t want to get a model that won’t sufficiently heat your garage. So, get a heater that has the wattage or the BTUs needed to warm up your space.

Multiplying the length and width of the garage will give you the size in square footage. Whatever figure you get, you should multiply it by 10 to get the wattage needed to warm it up or multiply it by 20 to get the minimum number of BTUs required.

The buying guide above should guide you on the other considerations you ought to make to buy the ideal space heater.

Note: in this example, we’ll use the NewAir G73 240 Heater.

Step 2: Gather the supplies

The items you might need include:

  • Utility knife
  • Marker
  • Tape
  • Wire connectors
  • Wire and ground-sheathed cable – most heaters require 10-gauge or bigger
  • Cable straps
  • Circuit breaker – most heaters need 30-amp or higher
  • Pliers
Step 3: Mounting
  • Hook the mounting bracket to the heater. Fortunately, the NewAir G73 comes with the mounting hardware, including the mounting bracket, the anchors and the bolts.
  • There are a couple of bolts on the side of the machine. Get them off and use them to connect the bracket to the machine.
  • On the side, you’ll also see some thumb screws, and you can use them to set the bracket at various angles.
  • Now, you want to attach the other mounting bracket to the wall, so go ahead and drill two holes in the wall stud. Use the provided lag nuts and washers to secure the bracket to the stud.
  • NewAir Provides a carriage bolt, and it’s got a carriage bolt with a square piece below the head to attach the bracket to the heater. Insert the bolt through the square hole on the heater’s bracket (from the bottom side) and insert the spacer.
  • Now insert the remaining free part of the bolt up through the hole on the bracket that is mounted to the wall.
  • Insert the star washer, the lock washer, and the 17-mm knot and tighten it, though not so much because you want the heater to be able to move a bit when hooking up the power.
Step 4: Wiring

For the NewAir G73, a 10/2 Romex wire long enough to run from the house’s breaker panel to the point where the heater will be installed will do. 10/2 means a 10-gauge wire and 2 shielded wires and a bare ground. The white wire is the one carrying current.

  • Strip the orange shielding back so you can get the wires through the fitting.
  • Open the electrical panel at the lower side of the heater and remove the electrical cables (the black and white).
  • Use twist-on wire connectors to attach the wires, making sure the black is hooked to the black, and the white is hooked to the white. But before that, be sure to insert the incoming cable into the plate of the heater’s electrical panel.
  • Once you’re done connecting the wires, use a wire harness tape to secure the connections.
  • When that is complete, push the plate with the connected wires into the heater’s panel and close it. Secure the bolts appropriately.
  • Go to the breaker panel and shut off the house’s main breaker.
  • Remove the bolts on the breaker panel to get to the breakers.
  • Strip the shield to the romex wire’s end to expose the individual wires. Remember, in this case, you need a current of 240 volts. Each of the two wires (black and white) is to carry a voltage of 120V.
  • Begin by finding a spot on the busbar for the ground wire and get the wire attached. Push it right in and tighten the screw.
  • The next step is to connect the breaker to the legs on the panel, but it’s more convenient to connect the wires to the breaker first. Remember, you need a breaker that will be able to handle the power needs of the heater. For the NewAir G73, and most other heaters, by the way, a 30-amp circuit breaker is needed.
  • Pop the wires into the holes at the back of the breaker. It doesn’t really matter which hole, because the wires carry equal voltage.
  • Now, pop the breaker in place onto the breaker leg.
  • Once that is done, it’s time to reinstall the panel cover.
  • And, you’re all done. Now you can turn on the main breaker and switch on the heater. If there are any issues with the wiring, its fuse will get tripped.

Final step – pop and beer or soda or whatever drink you like and enjoy!

Safety Precautions That You Need to Take While Using Garage Heater

Although electrical heating systems are a lot safer than the propane heaters and other heaters that use combustible fuel, exercising caution is always a good thing.

In order to understand how to ensure there’s safety, you need first to know the basics of how electric heaters work. Most units use a hot coil and a fan to dissipate the hot air.

Both the coil and the fan are typically enclosed in a cage, and they should stay that way to avoid accidents.

If kids or pets come into your garage, it’s better to mount the heater to the ceiling or high up on the wall where they cannot reach it.

If your unit is portable, be sure to place it on a flat, firm ground where it is stable. Also, be vigilant not to knock it over and ensure kids and pets don’t mess it with.

The area around the heater should be free of items like papers, clothes, and other combustible objects to prevent an accidental fire.

The U.S Consumer Product Safety Commission issues a few more safety precautions that space heater owners need to observe:

  • Ensure the plug is firmly secured to the outlet and don’t overload the outlet.
  • Don’t leave the heater on while going out.
  • Don’t plug the heater together with other high-wattage gadgets to the same circuit as that might cause overheating and potentially lead to a fire.
  • Keep the heater away from papers, beddings, furniture, and clothes.
  • Don’t use the heater if it is damaged.
  • Leave a free space of about 3 feet around the appliance.

Apart from observing these safety precautions, it’s advisable to buy a model with built-in safety features in the first place. Some of the features to look out for include:

  • Overheat protection
  • Auto shut-off
  • Stable base
  • Cool exteriors
  • UL certification – this is not really a feature but an assurance that the appliance has been manufactured with good safety standards.

When you buy your heater, look for the list of safety precautions in the instructions booklet. Read them and ensure you exercise them. Furthermore, read the instructions on use to be sure you’re handling the gadget properly.

Types of Electric Garage Heater

Space heaters can be categorized in two ways – by the manner in which they generate heat and by the portability.

By Heat Generation Style

Under this, we have 3 main types of heaters.

  • 1
  • 2
  • 3

Let’s quickly see what each type is about.


These use diathermic oil or other similar liquids flowing through a series of pipes for heat generation. As they don’t radiate heat through obstacles, they’re generally used for precise heating where the user wants to direct the heat to a particular area, like the workbench or something.

That means radiant heaters aren’t very effective for heating large spaces.

One advantage of radiant heaters is that they generate the heat quickly so if you need something to warm up your space quickly, a radiant heater will come in helpful.


There are heating elements in the heater, and when the air getting in comes into contact with the elements, it gets heated. These models heat the air slowly, but the effect lasts.

Though they are heavier than the radiant heaters, convection heaters are quieter. Some of them have a fan to help in the dissipation of the heat.


Conductive heaters also use heating elements to generate heat. These elements are often made of mica or a mixture of chromium and nickel to convert electric energy into heat.

High portability is the main benefit of conductive heaters.

By portability

Under this, there are two main forms of heaters – portable and fixed units.

Fixed units are the kind that need to be mounted either to the wall or the ceiling joist using fasteners. These units are also often meant to be hardwired to the electrical system.

Portable units, on the contrary, have a stand and can be placed anywhere. Also, they’re meant to be plugged into a wall outlet rather than hardwired. If you don’t have wiring skills and you don’t want to spend money on paying an electrician, you might want to get a portable unit.

Top Rated 120v/240v Garage Heater Brands on The Market

Dedication to safety testing and quality differs from brand to brand, and that is why when it comes to electronics items, especially heater, the brand matters. Below, we present to you some of the most reliable garage heater brands in the world.


NewAir was started more than 15 years ago by an entrepreneur named Luke Peters. At first, the company was just a small firm that sold evaporative coolers and portable air conditioners, but with time, it expanded and incorporated a whole range of other items into its product line.

Luke says that when he founded the company, he was extremely keen quality as well as the needs of the customers, and that is what contributed to the fast growth of the company.

Today, he and his team still hold onto the principle that quality comes first, and that’s why NewAir’s electric heaters are some of the most preferred best electric garage heater 240v on the market.

King Electric

King Electric is a Seattle-based manufacturing company that was started back in the 1950s.

Do you know why we put this band in our top rated best 120v electric garage heater band list?

Because, they have over 60 years of experience in making smart home heating solutions, the brand is trusted by customers to provide some of the best residential and industrial heaters, thermostats, and heating accessories.

Some of the reasons why their electric garage heaters are so popular include the fact that they are smart, reliable, and efficient in providing uniform heating without bumping up the prices.


Dimplex is a UK brand that is a subsidiary of Glen Dimplex Group, which happens to be one of the biggest electrical heating solution providers in the world.

For over six decades now, customers have put their trust in this brand to provide them with high-quality heating equipment.

Dimplex’s commitment to research and innovation is the reason as to why it’s able to provide such a dazzling plethora or high-grade products. Safety is also very important to this company, and its heaters have the BEAB mark of quality.

Lasko Products

Lasko started as a small shop in Philadelphia, but today, it’s a renowned distributor of quality products in many parts of the globe.

The reason behind this rapid growth is the company’s dedication to innovation plus the desire of the founders to help turn their customers’ homes into a more comfortable environment. 

Hard work and the upholding of excellent manufacturing standards are also very important at Lasko, and its motivation to keep these values perhaps come from the fact that it’s based where the Declaration of Independence was signed.

Cadet Heat

Cadet Heat was founded in 1957 by Dick Anderson. Dick’s mission was to make affordable, efficient, and durable heaters that would help people stay warm for a long time.

Today, this brand is owned by the Glen Dimplex Company, which is a respected world-class brand in the electric heaters sector. As such, Cadet heating products are tested for quality, and they’re perfect for anyone who wants to keep warm safely.

How to Take Care of a Garage Heater for Longevity 

The top heaters are built with sturdy materials, and their heavy-duty nature means the maintenance needed is minimal. Dust is, however, always a problem with heaters and thus cleaning is an important maintenance step.

The following cleaning tips should help you keep your heater working properly safe from dirt and dust.


Dust the heater at least once per week to keep the dust from building up. While doing it, be sure to turn off the heater and allow it to cool down first.

Removing the grime

Food spills and other grime need to be removed to keep the heater in good shape. A damp microfiber towel and a little dishwashing liquid should do it. Remember, you’re dealing with an electronic so don’t pour liquids on the machine directly.


If your heater has a grille or vent, then you ought to vacuum it on a regular basis to clear the airflow. A heater that has a fan attracts dust a little more than one that doesn’t, so if your heater has a fan, then you know how important it is to vacuum it.

Radiant heaters

Radiant heaters have a shiny heat-reflecting plate, and this needs to stay shiny for good performance.

Unscrew or unclip the grille protecting the plate then use a towel or vacuum to get rid of the dust. If the plate is very dirty, use a damp microfiber towel to clean it.

Dealing with rust

The reflector plate is susceptible to rust, and it’s especially in the risk of rusting if it is not dusted regularly. The key to protecting your heater from rust is cleaning.

If you see rust spots forming you can either use a rust remover spray or scrub it off using steel wool.

There are many different models out there, and each model might have some unique maintenance needs. So, check your user guide for instructions on maintenance.

Common Electric Garage Heater Troubleshooting

No matter how robust a garage heater is, it can stop working for a number of reasons.

But worry not, because most of the reasons can impede a heater’s functioning can be solved as long as the cause of the problem is diagnosed correctly.

In this section, we’re going to discuss some of the most common issues that cause space heaters not to work properly and their solutions. Let’s jump in.

The power

If your heater isn’t working well, the problem could be the power supply.


  • Check the connection in the breaker panel as well as the power cable or the wall outlet if the heater is plugged in there. Also, have a look at the machine’s switch and make certain it’s working well.
  • A problem with the power causes the fuse to get tripped, so check the circuit breaker. If the fuse is tripped, reset it and if trips again, then you know there’s a problem with the wiring. A blown fuse needs to be replaced.
  • Check the power cord for breaks and if there are any, replace it.

A problem with the thermostat

If the thermostat goes off or becomes stuck, loose, or faulty in any way, you might experience issues with the electric heater.


Inspect the thermostat knob. If it’s off, rotate it to increase the temperature. And in case the knob is stuck or faulty in some way, have a professional fix it.

Automatic shut off

Modern electric heaters are designed such that if there’s overheating, the heater just shuts off to protect the device’s components and keep the fire from erupting. But the feature can mistakenly cause the heater to shut off.


Disconnect the power and allow the heater to cool down for at least ten minutes before turning it on.

Frequently Asked Questions (FAQs)

What is a garage heater?

This is a self-contained appliance used to heat the space in a garage. It’s different from a central heating system in that it is used for heating a single enclosed space like a garage or workshop rather than many rooms in a house.

Garage heaters can be powered either by electricity or combustible fuels like propane.

Why get a space heater for my garage?

For the cold times like when you’re working in the garage late in the night or early in the morning. When it’s winter, a garage heater will definitely save you a great deal of discomfort. The device can also be incredibly helpful if you live in an area that is naturally cold.

Can I leave the heater on overnight?

The Electrical Safety Foundation International warns against leaving your space heater on unattended. According to the organization, heaters are the 2nd leading cause of accidental fires in US homes.

But that’s a risk you can avoid by ensuring that you always disconnect the power when leaving the room.

Are garage heaters safe?

Of course, they are, but only when you take the safety precautions provided by the manufacturer seriously. To boost your safety using a garage heater, ensure you buy one that is UL approved because then you’re sure it’s gone through the safety testing process.

How much will I pay running a garage space heater?

Estimating the cost of running the heater is a piece of cake. Just take the input power in kW and multiply it by the price you pay per hour for energy. So, if the input power is 4000 watts (which is 4kW), and you’re paying 7 cents per kWh, that will be 4x7 = 28 cents per hour.

If you keep the heater on for 5 hours daily, that is 28x5 = 140 cents daily. Per month, it will be 140x30 = 4200 cents or 42 dollars.

Tips: If you use an electric garage heater 120v is very cost effective items.

How do I keep my garage warm during winter?

The most effective way is to insulate it and install a garage heater. Insulation will ensure the heat emitted by the garage heater remains in the room, and hence you won’t have to set very high temperatures, meaning you get to save on energy costs.

Final Word

As finish, we hope the post has helped you find the best electric garage heater 240v / 120v for your needs.

Whether you need a 120-volt garage heater or a 240v garage heater, you can find it in our reviews above, and there are links in there to help you find each product conveniently.

While using a space heater to stay warm, don’t forget to exercise caution. The appliance should have some room behind and in front of it, and you should also check the instructions booklet for the specific safety precautions.

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