Best Portable Car Heater


When it’s freezing outside, all you need is a little extra warmth. When you’re driving in the cold, especially in the fall or winter, it can happen. Best portable car heater can in in in this situation. Heating your seat or to pump hot air into your car’s cabin is faster and more convenient than waiting for your car to warm up on its own. Portable heater 12-volt car heaters come in a wide variety of designs. Some work like space heaters, warming the entire car, while others direct heat only where you want it, keeping your seat toasty.

Car heater purchase

If you want to avoid making a purchase you’ll later regret, do your research before deciding on a portable heater. That is the purpose of this article. For starters, you’ll get a comparison of six distinct portable vehicle heaters. Additionally, you will get an overview of some of the most important aspects of each model during this process as well.

After that, you’ll be taken to a shopping guide where you’ll learn how to select the best portable car heaters for your needs. Each section of the buying guide is divided down into a subset. It all starts with understanding how portable car warmers work and the various types available.

After that, you’ll learn about some important questions to ask yourself in order to locate a suitable fit, and finally, you’ll read about some interesting portable car heater alternatives you didn’t know existed.

Best Portable Car Heater Reviews

There are six different types of car heaters available, ranging from defrost heaters for ice wintry mornings to seat heaters that keep you warm even when it’s sub-zero outdoors. They are all available for purchase.

Best heater for cigarette lighters 12V 150W with Heating and Cooling 2 in 1 Modes for Fast Heatinge Lighters

Best compact car heater Lasko 100 MyHeat

Best seat heater Sojoy Warm Wedge Memory Foam

Ideal for Truck, Bus, and Van 30,000 BTU High Output 12 Volt

Best car fan FiveJoy 360 Degree Rotatable Car Fan

Portable car heater with air purification

12V 150W with Heating and Cooling 2 in 1 Modes for Fast Heatinge Lighters

 Plug it into your car’s cigarette lighter socket for convenient use. Works with all 12V vehicles. Plug it into your car’s cigarette lighter socket for convenient use.

Works with all 12V vehicles. Overheating on Demand Securely Verify Today’s Price With three vent ports, this car heater may be used in a wide variety of ways despite its small size. With a simple turn of the handle, you can direct the front vent to provide defrosting heat exactly where you need it.


It can be mounted on the dashboard and pointed at the window or at you. As long as it’s pointed in your direction, the openings on the top will aid defrost while also keeping you toasty. Alternatively, you can use it as a fan to circulate the air conditioning in your car without the heating.

Even if your car’s HVAC isn’t running, you may use this to keep the motionless air from becoming musty. This compact car heater and fan plugs into the cigarette lighter to provide 12 volts of power and can be used in a variety of climates.

It’s quick and simple to use, whether you put it on your dashboard to aid defrost or hold it in your hands and target it towards your body’s cold spots. In the summer, you can use the heater to assist air circulation by cooling it down. Three outlets provide varied venting directions for flexible application. Uses 12 volt DC power from the cigarette lighter.

Lasko Heating Space Heater

Lasko 100 MyHeat

 It has a 200-watt output and a heating capacity of 682 British thermal units (BTUs). It is lightweight and portable heater, and it has built-in safety precautions. Controls that are only available with manual operation.

Energy Efficient the most recent cost Even by space heater standards, this heater is tiny. It stands little over 6 inches high. During typical operation, it only consumes 200 watts of power, but this can burst to 300 watts when first turned on.


Because this heater only comes with a wall adapter, you’ll need a power inverter to make it work in your vehicle. The ceramic heater core in this portable space heater generates heat, while a fan distributes warm air in the surrounding area.

When you’re next to it, the heater’s temperature is around 95 degrees, and the heat drops to 84 degrees at one foot away, 71 degrees at two feet away, and 68 degrees at three feet away, according to user evaluations. This shows that the heater can be quite useful in a car and that it does not pose as much of a risk as other, larger personal space heaters do when used.

Overheat prevention

Overheat prevention and a cool-to-the-touch exterior are features that the Lasko portable heater shares with other space heaters of its kind. It doesn’t have a thermostat, so it’s always on or off, depending on the situation.

It has a small form factor, being only 6.1 inches tall, and cools quickly when you go further away, making it safe to use in close quarters. Key Features: Overheat auto-cutoff ceramic heater core; heater generates heat practically immediately after being powered on.

Only the Seat Heater – Economical

Sojoy Warm Wedge Memory Foam

 It has a 45 minute heating timer and warms up in about 3 minutes. It runs on DC 12V and uses a maximum of 4 A of power when fully charged. The most recent cost This car seat warmer is universally compatible with most automobiles’ basic seats.

The non-skid backing is attached with three elastic straps and clasps/hooks. Because it’s a thin seat, it won’t alter your seating position. The seat warmer eliminates the need to adjust your car seat.


It has a 12V DC adapter built in, so it works with any cigarette lighter. If you’re sitting on it, the cord is hooked to the seat warmer on the lower right-hand side, along the crease where the seat meets the back. This eliminates the possibility of wires crossing or becoming tangled when you connect it in.

In-line control with three settings makes it easy to use without having to keep an eye on the device in question. With a 115-degree Fahrenheit surface temperature, heat takes only three to five minutes to reach maximum capacity. A 45-minute timer ensures that you don’t have to worry about leaving the heater on accidentally.


A bright red LED on the cigarette lighter serves as an added layer of protection, letting you know that the seat warmer is connected in. The following are its distinguishing characteristics: To keep the seat in place, it has an anti-slip backing with elastic and hook attachments.

  • Heats up to 120 degrees Fahrenheit and has a 45-minute timer.
  • Three factory settings: low, medium, and high. • Total heat distribution.

Ideal for Truck, Bus, and Van

30,000 BTU High Output 12 Volt

30,000 BTU High Output 12 Volt, quiet operation, three defrosting ducts Air Flow Routing See if there’s a better deal online.

The heater core in this portable car heaters is intended to be used in place of the one that has failed on your vehicle. As an alternative to relying on power, this heater uses engine coolant to circulate via its 5/8-inch heater intake and outlet.


To make use of this heater, you’ll need to add a junction to your coolant lines. Thick fans may move a lot of heated air since they are powered by the coolant’s heat.

The heater can be mounted in a variety of locations throughout the vehicle thanks to the accompanying brackets and mounting kit.

Do not be fooled into thinking that this heater has a thermostat; instead, it uses multiple fan settings to control how much heat is emitted. It’s like driving around with the heater on full blast, but no outside air to chill you down.


Blowers can be set at four different speeds: off, low, medium, and high. The outputs have around 3-inch apertures for air ducts that can be attached.

If you like, you can use this to make it easy to set up an auxiliary defroster. The main disadvantage of this portable car heater reviews is that it can only generate heat when your car is moving.

The quantity of heat your car emits while it is going, on the other hand, is incredible To install the coolant line access, you’ll need some mechanical know-how as well. 30,000 BTU output using hot water and forced heat • All-metal construction with high-efficiency aluminum core • Small form factor measuring 16″ wide by 9″ high by 6.5″ deep • Defrost kit available.

Key Features:

  •  Dual Head 360° Option

12V DC Electric 2 Speed Dual Head Fans

FiveJoy 360 Degree Rotatable Car Fan

  • Rotatable fan in all directions
  • 2 speed settings: strong and weak
  • ABS construction; 5-bladed dual-head fan

External Uses

You won’t be able to heat your home with these fans, but you can circulate the heat about with them. You can direct the two five-inch fans in different directions because they are individually movable.

The fans in this device have more power because there isn’t a heating core reliant on the 12-volt power from your automobile. In the winter, use them to direct warm air that is already in the area where you want it to go. Is there anything you can do to help your defroster run more efficiently?

Fans to push warm air

Use fans to push warm air into the corners of the room where the vents can’t get to them. Is it necessary to clean the view from your back or side windows? Similarly, place one fan in front of the window and one in the back to watch the warm air being blown against the glass as it blows. In the summer, you can also make use of these fans. Running your air conditioner on high wastes both money and gas.


Put the fans between the front and back of the vehicle to help circulate the chilly air to the people sitting in the back. Place the fan behind the rear seats on the back shelf and allow passengers to direct the fans at themselves or any other desired cooling location.

The two independently adjustable fan heads enable you or your passengers select where to focus your energy.

These quiet fans boost the existing cooling and heating power of your automobile. Fan blades and shell are made of ABS plastic for long life and durability, and can be adjusted anywhere in a 180-degree half-sphere independently of each other.

Fan diameter is 5 inches. Noise level is exceptionally low for such strong devices, staying under 50 dB at full power.

Buying Guide for Car Portable Heaters

There are a few things that differentiate these portable car warmers apart from standard space heaters that you’ve read about in the evaluations. In this document, there are three distinct sections. Let’s start by discussing how portable heater defrosters function.

Second, we’ll talk about some considerations to make while deciding on the best portable car heater for your need. Finally, we’ll go over a few alternatives that can help you choose between all the many types of vehicle heaters.

Portable car heaters and how they function

A portable car heater is similar to a patio heater or a space heater in your home for the most part. The main distinction is the strength of the two.

That’s because most cigarette lighter-powered portable heater are powered. Because of this, a portable car heater can only draw a certain amount of power from the fuse in your car and the lighter’s voltage.

Power supplies

Unless you have a fusion generator in the trunk of your DeLorean, the amount of power available to run a portable vehicle heater won’t be as much as what you have at home. The voltage of an automobile cigarette lighter is usually 12 volts.

The most typical automobile lighter fuses deliver 10 or 15 amps. As a result, a portable car heater can often draw between 120 and 180 watts (Remember that watts are equal to volts multiplied by amps).

If the heater consumes any more power, the fuse will at the very least be blown. You run the risk of starting an electrical fire if you overload your vehicle’s electrical system, which isn’t designed to manage that load.

So keep in mind that the heat output of most electric portable car heater warmers isn’t going to be extremely great. Individual warmth is the primary purpose of these heaters instead of warming the entire cabin.

Defrosting a cold window in the morning will be much easier with one of these. If you want to use a plug-in personal car heater, you’ll need a power inverter installed.

Fortunately, three-prong outlets are standard on the majority of modern models of vehicles. Portable car heater merely a matter of making sure the heater’s wattage requirements are met.

Heater Types, How are they keeping you warm?

Everything in the cosmos follows the principles of thermodynamics when it comes to staying heated. Basically, it says that heat is transferred from hot to cold locations until all areas are the same. Conduction, convection, and radiation are all methods by which heat is transferred from a hot place to a cool one, such as the tip of your nose.


Infrared heaters work by emitting heat radiation to keep you cozy. Similar to the sun, they release radiation into the atmosphere until it collides with a solid object with which they can interact. When this solid thing emits radiation, your skin becomes warm. Imagine yourself in the fresh air on a crisp spring day, basking in the sun’s rays.

Wind chill remains, and even if you feel a little chilly, as the sun strikes your back it quickly warms your body. The air is warmed slightly by infrared radiation, but only slightly since the radiation particles miss the air molecules. As a result, they warm up the air around you as well as the seats and dash.

Not to mention that this particular form of radiation is completely risk-free. Near-infrared radiation, as the name suggests, does not contain any UV rays, which are known carcinogens.

The only way infrared radiation can make you sick or damaged is if you sit too near to it for too long and acquire a normal burn. Because of its short range, radiation heating has a number of disadvantages.

Most of the time, you need to be within a few feet of the heat source to feel the warmth it produces. This is due to the fact that it uses line of sight radiation, which has a much smaller car heater field of action than other types.

Infrared radiation heat has the advantage of being quick to get up and running and to start warming things up. Most of these heaters start spewing out BTUs in a matter of seconds.


When a fluid is heated, heat is transferred from the heat source to the cold area by passing through it. Taking a hot bath is a simple way to experience convection. The water (a liquid) in your bathtub is heated by your hot water heater.

Because your body temperature is lower than the water’s, when you sit in hot water, the heat transfers from the water to you. This is critical because, at the very least, in the realms of physics and thermodynamics, air is a fluid.

Instead of using an electric element to generate heat, convection heaters use a fan to circulate cold air over heated coils or a ceramic heater core.

The heaters core heats the cold air, which is subsequently blown over you as warm air. Warm air enters your body and transfers its heat to you.

This process cools the air just enough to allow it to be warmed up again. Convection heat has the disadvantage of transferring heat through a liquid. You won’t transfer much heat if the air is moving quicker than the heater core can heat it.

The entire space will warm up eventually if there is no draft. Nevertheless, if there’s an air leak bringing in frigid air quicker than it can be warmed, you’re better off skipping it.

Convection heating has the advantage of feeling good and not only warming up the side facing the heater. Consider the contrast between relaxing in a hot tub and spending time over a campfire. A fire just warms the side facing it, whereas a hot tub warms the entire body.


When something hot and something cold come in direct contact, heat conducts from one to the other. Consider how quickly an iron bar heated in a fire heats up as an illustration of conduction.

Even if you wear gloves and only grab the non-flaming end of the iron, you’ll still suffer a nasty burn. When you stir your coffee with a metal spoon, that’s another example.

The spoon’s handle warms up to the touch after a few minutes of resting there. The metal in your hand helped to keep the coffee warm. Seat warmers use conduction the most for portable car heaters.

Wires carry a tiny amount of electricity. These wires warm up as a result of their resistive nature. Thermal conduction occurs when a conductor’s wires become hot and transfer that heat to the insulating material surrounding it.

When you sit on the insulating layer, you’ll feel the warmth radiate from the heating pad to wherever your body is located. Of course, this method of heating has the apparent drawback of necessitating the presence of an object to be in contact with the heater.

Heat cannot be forced through convection or radiation if anything is not in contact with it (unless you are extremely close). So, similar to the campfire analogy, your backside may get toasty warm with a conduction seat warmer, but your front side is still icy.

Options for a Portable Car Heater

 As you’ve seen, there are a plethora of options for vehicle heaters on the market. Finally, knowing how they work and what some of the more important questions to ask are should help you narrow down your choices to a few models. When it comes to car heater features that you might not be aware of, here are a few that can sway your choice.

• Flexibility

Most portable car heaters may do more than just keep you warm in the winter months. Moreover, they can run even when the heater core is not engaged, giving you access to a spare fan. A towel or a pair of wet socks can be dried more quickly with the aid of a fan, which can be used for both drying and pushing air around.

You can use some automobile warmers at your house or business by simply plugging in the adaptors provided. These adaptors seem like cigarette lighters, but they’re actually power inverters. When you connect it in, it converts the 120 volt AC power to 12 volt DC power, which is invisible to your heater.

Now you don’t have to turn on the heat in your house while watching the evening news because you can use your seat warmer on the couch.

You can even use it in the office to maintain a comfortable temperature because the office manager has the air conditioning set to 66 degrees Fahrenheit even in the dead of winter. There’s no reason to feel cold when you have a portable heater.

• Preheating

On a frosty winter morning, you may not want to sit in a cold automobile. In other words, you’ll require something that won’t catch fire and endanger your vehicle. To do this, seek for a tiny, lightweight space heater that won’t produce an excessive amount of heat.

Warm your car while you wait in the comfort of your home with these compact space heaters. There’s no need to buy a jumper cable or anything like that.

Wait a few minutes after starting your car and turning on the warmth. Allowing your automobile to warm up is a good idea in any case, since it allows the fluids and oils to reach their optimal operating viscosity.

The fact that you won’t have to shiver or dance is a nice plus. When shopping for a space heater, search for one with certain safety features, such as a thermostat. To begin, look for a heater with an instant shutoff feature in case the unit falls over.

Imagining a heater tipping over and blasting hot air right into your seat cushion would be a tragedy. You’ll sear the leather or cloth at the very least. The worst that could happen is that you’d accidentally start a fire.

Second, make sure the space heater has some kind of overheat protection so that when it gets too hot, it will immediately shut off. Consider the possibility that something has fallen near your space heater. A scarf or a pocketbook falls on top of it and breaks the surface. You want a heater that will simply shut off if portable car heater becomes too hot, otherwise it will overheat, spark, and eventually fail.

Situations that Call for Quick Action

Even though you don’t want to think about it, you and your automobile could be stranded in a bad snowstorm if something happens. The heater you choose should be able to keep you warm enough to wait out the storm if that is the case.

If you don’t have an emergency pack in your car, search for a tiny heater that uses very little power to keep you warm in the winter. You’ll need something to cuddle up with that keeps you warm without draining your phone’s battery.

If you’re in a heavy snowstorm, you don’t want to leave your car running all the time since the snowfall could obstruct your exhaust pipe.

If the weather is poor, you won’t be able to go out and check. Drive for five minutes at a time, around every half hour instead. This allows for the elimination of any carbon monoxide that may be present. In the meantime, your heater’s alternator will help recharge the battery you’ve been draining.

Portable Car Heaters Safety

You must use caution when using any type of heater. Heaters used inside a car must be utilized with extreme caution because to the limited space available for ventilation. In the first place, here are a few general heater safety suggestions.

Despite the fact that it should go without saying, it must be stated: Incorrect usage of heaters, or utilizing them for something other than what they were designed for, can result in serious harm, deformity, or even death. Coils and cores of heaters can reach temperatures of 600 degrees or higher, making them exceedingly dangerous.

Are portable car heaters safe?

Using your bare hands or exposing a part of your body to them invites a rapid and painful lesson in the workings of heat transfer. In addition, you should never place anything in front of a heater because of this.

A good rule of thumb is to leave at least three feet around any radiation or convection heater. Portable car heater will keep the device cool while also allowing for optimal airflow.

If you don’t do this, the heater may get too hot and catch fire. Always keep curtains or drapes away from heaters when using one in an RV or a camper.

Fabrics with a low ignition point, such as those used in thin clothing, are more prone to burning quickly. Most campers and RVs are tiny and confined, making escape difficult or impossible.

When using an electric heater on a boat, avoid getting your hands wet or touching the heater while it’s on. The conductivity of saltwater is superior to that of freshwater. Using your heater near seawater necessitates further inspections. As a result of this, the metal fittings and connections are more likely to corrode, which can lead to catastrophic mechanical or electrical failure.

Conductive heaters

When using conductive heaters, such as seat heating pads, make sure you’re dressed appropriately. Seat heaters may reach temperatures of up to 150 degrees Fahrenheit on occasion. When skin is subjected to 120 degrees of heat for ten minutes, third-degree burns emerge.

A person who is diabetic, has nerve damage, or is paralyzed may not be able to detect the danger in time to disable the heating unit, despite feeling the tingling and agony of an approaching burn. Seat heaters can also induce toasted skin syndrome if used excessively.

The backs of legs become stained and blackened as a result of utilizing a seat heater for an extended period of time.

Avoid utilizing a space heater that isn’t designed for use in a vehicle. This is due to the fact that residential space heaters have a far higher output than automobile heaters. In addition, because they are more powerful, they necessitate a larger working area to prevent a potential fire.

You may be able to fast warm your cabin, but your seats will be scorched as a result. You may potentially start a fire if you don’t have them properly set up. Propane-powered space heaters are also common, but they’re a terrible choice for the interior of a car because of the fumes they produce.

Be aware that not only does the heater burn the fuel, but propane also produces a significant amount of carbon dioxide and carbon monoxide when it is burned. In other words, there’s a fire going on there somewhere. The propane heater has the potential to easily ignite everything in its path.

Try to imagine yourself in the middle of the ocean on your boat, with nothing to protect you from the elements.


Hybrid heaters are the best. To keep you warm, they make use of two different heat transmission systems. It’s like using an infrared heater in conjunction with a fan to push warm air out the other end.

As a result, the radiation isn’t the only thing warming you up; warm air is also blowing over your body. Consider which type of heat you prefer before purchasing a portable vehicle heater. Due to the limited space in car cabins, convection heaters are an excellent solution.

In contrast, if you want to portable car heater or a boat while it travels through canals to reach the best fishing places, you should go for a system that won’t lose heat to the wind. We’ve already covered the fundamentals. You have a basic understanding of how portable heater work and how heat is transmitted from one location to the next.

We’ve also discussed several crucial questions to ask, as well as some safety considerations and different types of heaters. Now that you’ve read this guide, you should be better equipped to select the portable car heater that’s right for you.

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