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Top 10 Best Portable Car Heaters on The Market 2021 Reviews

I think we all would agree that nothing can beat a long cozy car ride in freezing winters. However, there is one issue that comes with this scenario; keeping the vehicle warm. But do not worry, we have found the perfect solution for you.

Portable car heaters are designed to provide you with the warmth and comfort that you crave in your vehicle, specifically when the temperature outside has considerably dropped. And if you do not own a unit, yet, then let us help you pick one.

best portable car heaters

In this article, we’ve reviewed 10 of the best products that one you may invest in. To further help you, it will also guide you through the basics of buying a portable car heater for yourself.

Top 10 Best Portable Car Heaters on The Market 2021

NameOutputExtra FeaturesWarrantyRating
30,000 BTU
Extra Features
3 High speed Volume dual blowers
One year limited warranty
5 out of 5 stars (5 / 5)
28,000 BTU
Extra Features
Built-in overheat protection
One year limited warranty
4.1 out of 5 stars (4.1 / 5)
4,000-9,000 BTU
Extra Features
Antifreeze Setting
5 year limited warranty
4 out of 5 stars (4 / 5)
1,600-3,000 BTU
Extra Features
Safety shut off valve
One year limited warranty
4.1 out of 5 stars (4.1 / 5)
3,000  BTU
Extra Features
Provides Frost Free windows
One year limited warranty
3.6 out of 5 stars (3.6 / 5)
20,000 BTU
Extra Features
Demister, Defogger, Defroster
4 out of 5 stars (4 / 5)
4,000 - 18,000 BTU
Extra Features
Auto shut off feature
One year limited warranty
4.5 out of 5 stars (4.5 / 5)
4,000 BTU
Extra Features
Oxygen Depletion System and Tip Over Switch
One year limited warranty
4.1 out of 5 stars (4.1 / 5)
1,100 BTU
Extra Features
Thermostat and timing power off protection
One year limited warranty
4.1 out of 5 stars (4.1 / 5)
1,100 BTU
Extra Features
Circulates air to the backseat
One year limited warranty
2.9 out of 5 stars (2.9 / 5)

1 30,000 BTU High Output Auxiliary Heater

For an item to rank number one in a list of best products, it must have some features that make it worthy of that place. This unit is packed with such features. It not only provides the best features to keep your car warm but also ensures your convenience at the same time. For this reason, we consider this to be the best unit of all.

Providing with an outstanding, high output of 30,000 BTU, this unit guarantees the best of functionality. That makes this the best auxiliary heater for any sort of vehicle.

Be it a car or a truck, a bus, or a van; this unit will heat up your vehicle and keep you warm. And very efficiently so.

But how does it work so well?

You see, this unit features an efficiency aluminum core. That is further aided with a powder coated all steel case, which is specifically designed to aid its function. This outstanding design of the unit comes in a compact size that allows you to carry it around easily.

So while its gear on the inside enables its best functionality, the exterior ensures you are aided with convenience.

If you still want more from this unit, let us tell you that it has more to offer. It comes with a mounting bracket, installation kit and a manual. So once you get this unit, you will have everything that you need to get started.

30,000 BTU High Output Auxiliary Heater

Our rating:5 out of 5 stars (5 / 5)

  • A high output of 30,000 BTU for enhanced functionality.
  • Includes all hardware and instructions required for working.
  • Designed to perfection to ensure the best working.
  • 3-speed high volume dual blowers.
  • Standard 12 Volt operation.
  • 3 defrost ducts that route the air flow.
  • One-year-long warranty to ensure the best working of your unit.
  • On high speed, the unit is quite noisy, which one may find disturbing.

2 Lasko Model 100 MyHeat Personal Space Heater

Here is another top quality product that is designed to keep you warm while you are on the move. This unit is designed with the perfect set of functioning and aesthetics that will please not only your body temperature but also suit your interiors.

Now that is what we call an excellent design.

This unit ensures a quick rise in temperature, using its fan delivery. It features a ceramic heating element that heats up quickly while the built-in fan of the unit works quietly and efficiently to ensure that the heat is distributed in the space evenly.

As a result, your vehicle will be heated up in no time, without any annoying noise from the fan.

What we love about this unit is its overall built. It comes in a compact size, which not only makes it easier to carry around but also ensures that you can easily find a place for it anywhere in your vehicle.

The unit measures to just a little taller than 6”, which isn’t much of height to present you with storage issues.

This model will provide you with not only the comfort of a warm and cozy drive but also the best of your safety. Its built-in safety features are designed to keep you out of harm’s way.

It has an overheat protection features. This allows the unit to stay within certain limits of heating. So you can rest assured that your unit won’t ever be overheated, even if it is left running for long.

But that’s not it for your safety. The unit also comes with a cool to touch exterior. So no matter how hot the heating element is on the inside, you can always touch the exterior and not be burnt.

Lasko Model 100 MyHeat Personal Space Heater

Our rating:4.1 out of 5 stars (4.1 / 5)

  • Quick heating with a ceramic element.
  • Quietly functioning built-in fan.
  • Compact sized, making it ideally portable.
  • Efficient use of energy by the unit.
  • Built-in safety feature to protect overheating.
  • Cool to touch exterior to avoid burning upon touch.
  • No assembly required and ready to use.
  • The lower corners of the unit are curved. So, if not placed carefully on a leveled surface, it may tip over and fall.

3 Caframo True North Heater

Caframo has designed this unit that efficiently works at heating up small spaces, such as interiors of a vehicle. For this reason, we think this unit is ideal for your car.

It features efficiency and convenience that makes it a highly functional device; one that you need to experience yourself.

The best part about this heater is its low profile design. Unlike the standard heaters, this one isn’t tall, but rather flat. This makes the unit much easier to place as well as store.

The compact design, coupled with the light weight of the unit, also ensures the best of portability for you, adding to your convenience.

Another feature of this device that you will find useful is its anti-freeze setting. This is ideal for all those who live in areas where temperatures drop to the extremes.

With this heater, you can say goodbye to all the freezing issues that you may have had before. It will ensure the perfect warmth and lack of freezing for ideal heating.

Above all, there is a built-in thermostat in this unit, which simply adds to its functionality. No matter if you like a little extra heat, or just enough to keep you warm, this unit will work just according to your need.

You can set the thermostat to work as you want, and enjoy the temperature that you find preferable.

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Caframo True North Heater

Our rating:4 out of 5 stars (4 / 5)

  • Compact design that allows easy portability.
  • Low profile design that makes it placement and storage convenient.
  • An anti-freeze setting for all the freezing winter.
  • A built-in thermostat for you to have complete control.
  • Whisper quiet operation that offers no noises.
  • 5-year limited warranty.
  • The unit is not efficient with the power consumption and uses quite a bit of it.

4 Camco 57331 Olympian Wave 3

Camco is a trusted name in the industry that has been introducing top quality appliances for its users. Most of its products are top rated, for the reason that they provide with the best of functionality and high efficacy.

This catalytic heater from the brand is no different. It efficiently delivers the excellence and functionality that the brand promises.

This adjustable unit allows you the liberty of choosing the output of the device. You can set the output between 1600 BTU and 3000 BTU per hour. This output range makes it ideal for a secondary heating source in a room.

It is also the best option as a primary heater in a closed space, such as your car.

This wave heater works on low-pressure gas. How does that help? It does so by requiring no electric outlet or a battery connection. This makes it ideal for your RV when you’re heading out for a camping trip.

So you can use it indoors as well as outside the vehicle. And since the unit is compact sized and lightweight, carrying it around will be absolutely no issue.

The unit is designed not only to keep you warm and at ease, but also to ensure maximum safety. It features a special safety shut off valve that will provide you with great safety.

And how will it do that? Well, it serves to prevent any accidental non-ignition fuel discharge which can be extremely dangerous, leading to grave consequences.

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Camco 57331 Olympian Wave 3

Our rating:4.1 out of 5 stars (4.1 / 5)

  • An output that ranges from 1600 BTU to 3000 BTU per hour.
  • The working of the unit can be adjusted according to your need.
  • Can also be used as a portable heater or be mounted if needed.
  • Does not require an electric outlet or even batteries.
  • Ideal as the primary heating source for cars.
  • The wave heater functions silently, without any noise.
  • A safety shut off valve that will prevent accidents.
  • Easy to use and operate.
  • The unit may not ideally function for extreme weathers since it doesn’t have a great output.

5 Zerostart 2600900 Interior Car Warmer Compact Electric Portable Heater

Electric heaters are generally regarded to be the best working heaters, especially for the use in vehicles. And if you wish to experience the best functionality of these models, then you should try this unit by Zerostart.

It’s designed to provide you with the best of functionality and nothing less.

The best part about this unit is that it will provide you with complete ease and convenience. But not just in the aspect of its installation, but even its placement.

The unit is fairly easy to install, and it works just as simply. Furthermore, its compact design is aimed at providing you with a convenience of placing it almost anywhere you like.

This unit will also be a great help to provide with easier driving experience.

And how is that you ask?

Simple, just turn it on a while before you start driving, and you will have absolutely frost-free windows by the time you are on the road. So you get not only a warm car but also an easier driving experience. Isn’t that amazing?

The unit is lightweight, which ultimately makes it easy to carry around. It is ideally designed for use in light-duty passenger vehicles and even recreational vehicles.

So even if you are out on a camping trip, or a simple drive around the corner to do some tasks, this unit will provide you with the best of heat.

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Zerostart 2600900 Interior Car Warmer Compact Electric Portable Heater

Our rating:3.6 out of 5 stars (3.6 / 5)

  • An output of 3000 BTU that makes it ideal for use in light-duty vehicles.
  • Standard 120 volt power outlet required.
  • The unit is fairly easy to install.
  • You can place it anywhere, from the floor to the dashboard.
  • It comes with the required mounting brackets.
  • The unit serves to provide frost free windows while you are on the road.
  • The lightweight design and the compact size make it easily portable.
  • The unit does not have a thermostat and may provide excessive heat if not unplugged.

6 Blue-Net Universal Fan Heater

If you own multiple vehicles ranging from a car to an RV, then you would want a unit that works equally well for all your vehicles. We suggest that you look no further because this universal heater just might be the perfect unit for you.

It’s designed to provide you with the best of functionality and convenience and is, by true means, a winner.

What we love about it is how easy it is to install. With this unit, you do not need to do any extra efforts at all. Just hook it up to your vehicle’s water tank and plug the cord into a power supply.

Just these two simple tasks and your unit is ready to provide you with the warmth that you crave. It doesn’t get easier than this.

Designed out of copper and iron, you will be sure to get the best of durability out of this unit. It is a model that will simply last long rather than dying out on you.

Furthermore, it functions on a 120 volt supply, which is the standard for most vehicles. So you do not need to worry about finding the right adaptors to make it work.

But that is not all; this unit is not just keep your car heated. It is capable of providing you with much more than that.

It will efficiently demist your car, getting rid of any fog and frost on the windows, making for an easier driving experience. So with this unit, you get the two-in-one function instead of just a heating device.

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Blue-Net Universal Fan Heater

Our rating:4 out of 5 stars (4 / 5)

  • Lightweight and compact design that provides the ease of portability.
  • Features easy installation that requires only two simple tasks.
  • Functions on the standard 120-volt outlet requiring no adaptors.
  • The copper and iron construction allows the unit to last longer.
  • Works efficiently as a demister, taking care of the fog and frost on the windows.
  • Two-in-one functioning device that provides enhanced functionality.
  • The unit itself works fine but comes with poor customer service.

7 Heater F274830 Big Buddy Propane Heater

Mr. Heater is itself a brand that is dedicated to providing top quality heaters for its users. It ensures that puts out products that excel in their function and in the convenience of the customer.

This Big Buddy propane heater upholds the same qualities that the brand serves to provides with all its units.

This adjustable unit can provide an outstanding range of output, based on your requirement. Its output can range from 4000 BTU to 18000 BTU. This range of output makes it ideal for spaces of up to 300 square feet.

Since cars occupy less space than that, you can rest assured that this model will work more than efficiently for your vehicle.

But that isn’t the best feature that it offers. Let us tell you what it is. It is the auto shut off feature. This feature will automatically shut your unit off if the device is tipped over and accidentally falls.

Similarly, it will switch off if its pilot light goes out or even when the oxygen levels aren’t sufficient for its functioning.

This model is well capable of being adjusted to suit your needs. It has a control knob that allows you to switch between a low, medium, and high heat level.

All the levels provide steady temperatures and prevent the overheating of the unit or space. Just set the temperature according to your liking.

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Heater F274830 Big Buddy Propane Heater

Our rating:4.5 out of 5 stars (4.5 / 5)

  • An output range of 4000-18000 BTU.
  • Ideal for areas of up to 300 square feet.
  • Approved for use indoor as well as outdoor.
  • Almost 100% efficient and clean burning.
  • Auto shut off feature that works in multiple scenarios.
  • Control for three heat levels.
  • Steady temperatures to prevent overheating.
  • The medium setting does not efficiently burn, and you may smell propane.
  • The provided carry bag isn’t of good quality.

8 Heater MH4GC Golf Cart Heater

Two products by Mr. Heater in a row? That probably says enough about how trusted and reliable these units are, for the brand to show up twice, consecutively.

These units by Mr. Heater will simply impress you. This is because of their efficiency of heating up your car, and their simplicity of design and use.

With an efficient output of 4000 BTU, this unit will provide you a running time of about 5.5 hours.

Even after the unit is shut off, the heat and warmth provided by the unit will last to keep you cozy for long enough. And that says enough about the high functionality of this model.

The design of this unit is carved out with your ease and convenience in mind. It features an easy grip handle that provides you with comfort while carrying it.

It further features a cup holder adaptor which will come in handy while you’re on the move. What more can we ask of a unit than our absolute convenience?

This unit also proves to be of the highest functionality with its unique yet useful features. With this unit, you get an oxygen depletion system. You will find this feature in a very few other devices.

It also comes with a wind resistant screen and a large radiant heating surface which allows better heating. And last but not the least is its tip over safety switch that works to switch off the unit if it falls.

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Heater MH4GC Golf Cart Heater

Our rating:4.1 out of 5 stars (4.1 / 5)

  • An easy grip handle to provide comfort while carrying.
  • A porcelain coated reflector for enhanced functionality.
  • A large radiant heating surface for better heating.
  • Specially equipped with an oxygen depletion system.
  • Tip over safety to switch off the device.
  • A perfectly fitting cup holder adapter.
  • The unit has a limited running time.

9 Kingleting Heated Seat Cushion

While a heater may provide warmth for the space around you, it is no solution for your cold seats.

You will eventually have to wait for your body warmth to heat the seats enough to be at a bearable temperature. And it is likely that by then, your car ride has already ended.

But not with this unit.

This heated seat cushion will ensure that you rest upon a well-heated seat, throughout your ride. So you get warmth and comfort, all at once.

This unit provides quick heating that will allow you to feel the heat on the seat cushion, within a minute. Just a minute and you’ll be experiencing the cozy warmth of this unit.

The temperature of this unit is also adjustable to your need. And if you like your seat to be extra heated, this unit can be heated up to 140 degrees Fahrenheit.

The temperature of this unit can be set between 86 degrees to 140 degrees Fahrenheit, with 37.4-degree increments in between. So you’ll have precise control over the temperature of your seat.

This heating unit is not only efficient at its job, but also safe and reliable. It features a protection thermostat which prevents overheating.

Furthermore, its timing power off protection will ensure that the unit gets switched off even if you forget to do so manually. All you need to do is choose between 30, 60 and 90 minutes, and the unit will turn off on its own when it’s time.

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Kingleting Heated Seat Cushion

Our rating:4.1 out of 5 stars (4.1 / 5)

  • Quick heating seat cushion that provides a heated cushion in a minute.
  • Intelligent temperature control that provides a precise temperature control.
  • A thermostat protection that prevents your unit from overheating.
  • A timing power-off protection that automatically shuts off the unit in the set time.
  • A universally fitting design that will fit on most standard car seats.
  • The unit doesn’t last very long.

10 Back Seat Heat Plus

We finally move on to the final product on this list. But this unit is by no means lesser than any other unit featured on this list. It has its unique set of qualities that makes it worthy of being on this list while providing with great functionality.

Back Seat Heat Plus is a unit that will simply not disappoint you with its efficiency and working.

This electric unit functions on the standard 12-volt outlet that you can find in cars, making its connection easy. So you won’t need to go around looking for an adapter for its connection.

Providing an output of 1100 BTU, this unit will provide ideal heating that will also prove to be safe for your battery.

The unit comes with all the hardware and wiring that is required for its installation. This saves you from the hassle of finding the right items. The installation of the unit is also fairly easy, and with just a little help, you will be good to go.

You don’t need to stress over extra hassles provided by its operation either since that too is a fairly simple task.

This unit aids in circulating the heated air all around the vehicle. So even if you are in the back seat, you won’t be cold. In fact, you will experience the same heating as the front seat, thanks to the efficiency of this unit.

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Back Seat Heat Plus

Our rating:2.9 out of 5 stars (2.9 / 5)

  • The unit is lightweight and compact, can, therefore, easy to carry.
  • It circulates the heated air ensuring the back seat is just as warm.
  • Comes with the wires and fuse required for installation.
  • Features easy installation and simple use.
  • 1100 BTU output that is efficient and safe for the battery.
  • The unit is not appropriate for use in very cold conditions.

Also see: Top 10 Best Tent Heaters For The Money

Best Portable Car Heaters Buying Guide

Car heaters seem like extremely simple devices, and the truth is that they are. But still, while picking out the right one for your vehicle, you still need to look at some important aspects.

These are the defining factor for the efficiency of the device. In case you have never purchased a car heater for yourself before, here are important aspects that you need to consider.

  • Budget

Budget is a vital factor to consider while buying any product, not just car heaters. It is the biggest deciding factor over what you can and cannot buy. It is pointless to ponder over devices that do not fit into your budget.

Therefore, it is important that you determine the amount of money that you can spend on a unit. Similarly, you should look at models only that fit into your given budget. This will not only save time but will also prevent you from spending more money than you need to.

  • Heater Type

Next, you need to have a clear idea about what type of heater you want to go for. You can choose between convection, fan forced, or radiant heater. All these units work on different principles. To choose the best one for yourself, it is important that you understand how all of these work.

best portable car heater buying guide

Convection heaters work to heat the entire space of the vehicle, no matter how big. So, they are ideal for larger vehicles like RVs.

Radiant heaters, on the other hand, prove to be ideal for small spaces. However, they aren’t as efficient with their heating.

The fan forced heaters work by blowing the air over a heating element. But their efficiency depends upon the heating element and the fan.

  • The Climate

It is important to consider the climate of the area that you live in. In some places, winter means the drop in temperature only by a few degrees. Meanwhile, in others, winters can freeze over the water bodies.

Not all units are ideal for performing in the latter environment. It is, therefore, necessary that you consider the climate in winters. This way, you will buy a unit that is efficient enough to deal with the temperature.

  • Car Size

Car size is yet another important aspect as different units can cover different areas of spaces. You need to find one that will ideally provide the best heating according to your car size. Any other option could mean a waste of your money.

  • Noise

There are certain units that produce a considerable amount of noise while their operation. The noise that is produced is another important factor since a greater amount of noise can be really disturbing.

This is particularly true while one is driving. So choose a unit that is comparatively quiet and bearable.

  • Heating Capacity

Heating capacity is one of the major deciding factors when it comes to car heaters. This greatly depends upon how heated you prefer your vehicle to be. The greater the amount of warmth you desire, the greater heating capacity it should feature.

  • Efficient Power Consumption

A cost-effective functioning of the unit is very important. You could save all you want while buying a unit. However, if it consumes too much energy, you will have to pay extra due to the lack of its cost-effectiveness.

Such units may also cause the battery of your unit to wear down if that is what they function on.

To make sure this doesn’t create a problem for you, you need to be careful while making your choice. Ensure that the device that you are looking at does not consume too much energy and operates efficiently.

  • Size and Weight

Car heaters ideally need to be portable. For that purpose, the unit that you consider must not only be light in weight but also feature a compact design. So when you move the device around, you do not face any troubles.

Other than portability, small size also helps for one to place it around the car easily. Vehicles present with a limited amount of space and a large sized unit would, eventually, be a trouble to keep in the car.

  • Warranty

Whenever you invest in a product, you want to get the best out of it. If ever presented with trouble, you wouldn’t want to go ahead and get a new piece all over again.

For this reason, it’s important that you choose a device that comes with a warranty. At least, a one-year limited warranty is preferred.

  • Safety

While you are on the road, safety is one of the greatest features that you need. A heater is no exception. Accidents involving heaters can present with severe consequences that you wouldn’t even want to think about.

It is, therefore, crucial that whichever unit you choose must provide you with enough safety features to ensure that you don’t run into any sort of accidents.


To give our final word on the above-listed products, we would say that the 30,000 BTU High Output 12 Volt Auxiliary Heater absolutely steals the show.

It not only provides with a great heating capacity and convenience of use, but it is also cost effective with its functioning. So, eventually, it provides you a great run for your money.

But your perfect choice may differ from ours. Given the right features and considerations, you too can pick out a model that may work for you better than this one.

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