With its large 5,200 mAh rechargeable battery, the Fourheart rechargeable heater can also be used in an emergency situation as a power bank for a depleted phone. The American Cooling Solutions 20,000 BTU 12V Low Profile Universal Auxiliary Cab Heater is a truly superior product. Top Kichler Ceiling Fans: Our 2021 Review, DeLonghi TRH0715 Oil Filled Radiator Heater: Full Review 2021, DeLonghi TRD40615E Dragon Oil Filled Radiator Heater: Full Review 2021, Affiliate Disclosure: When you buy a product via our links, we sometimes earn a referral fee. The ideal small emergency heater, well designed, well made and perfectly safe if used properly, the Mr Heater Little Buddy can save your life if you ever get stranded in extremely cold conditions and is our choice for best propane heater for a car in 2020. The Sojoy Car Seat Heater is manufactured to universally fit with DC 12-volt. Also see: Top 10 Best Tent Heaters For The Money. For Portable Auto Heater 12V Car Electric Travel Vehicle Fan Defroster Demister. Read More. It is also absurdly easy to clean. Best JBL Headphones [Affordable gadget in less budget],  Best Bubble Hash Machine Reviews: Hashing without Struggle and Ado, Merge VR Goggles [An Amazing gadget to choose], Why Does my hoverboard Keep Beeping? Knowtheflo is compensated for referring traffic and business to these companies. We will focus on how well these heaters work, and how safe they are to use, and we’ll only recommend products which satisfy these two extremely important criteria. Whether you're looking to add some extra heat or more lighting to your car's interior, AutoZone has the 12v car products that you need. Works as a windshield defroster for when your front or rear defogger isn't working. The Fourheart Rechargeable Heater is a bit of a different option. Overall Best Car 12v Kettle The Spardar 12v water heater is perfect for a multitude of water heating tasks. And if you have two or more passengers, or if your dogs don’t like to share, you should get a splitter for your lighter socket so that you can use more than one electric blanket. The best portable car heaters and window defrosters will make things much more pleasant when the temperatures drop outside. There must be hundreds of 12-volt heaters which claim to do what this nice little unit actually does, but believe us – they don’t. In this buyer’s guide – Top 7 Portable Heaters for your Car (2020 Edition) – we will pick the very best unit in six categories: Although you may be tempted to get a big heater for emergency situations, most will simply produce too much heat for a car and are too large as well – even to the point of being unsafe. Save on 12-Volt Interior Heaters with great deals at Advance Auto Parts. 1.3.1 Sojoy Universal 12V Car Seat Heater; 1.4 Ideal for Truck, Bus, and Van. We are going to start our recommendations for portable cigarette lighter heaters with the most problematic type of heater – the dashboard heater/defroster. DEWIN 12V Portable Car Heater Car Hot Fan Ceramic Heater for Car Heating, Windshield Defroster and Demister 25A 300W 12V. Direct Wired Heaters – these connect directly to your car’s electrical system, and because they will drain the battery they are best used when the engine is running. In truth, though, they do none of that. Always inspect the heater after every two months of use. A great little gadget to always keep in your glove compartment, the Fourheart Rechargeable Hand Warmers is our choice for a best portable battery-powered heater for cars in 2020. And why are they so problematic? With a strong ABS plastic exterior, this … Ceiling fans are quickly becoming very popular items, as more and more people understand that a good ceiling fan can help make both home heating and home cooling much more, The DeLonghi TRH0715 oil-filled radiator is one of the least expensive radiant heaters the company makes, yet still offers that trademark beautiful styling and solid feeling construction that DeLonghi is, The TRD40615E Dragon oil-filled radiator is a premium full-room radiant heater from DeLonghi, and truly looks and feels like a high-quality product, with a solid construction, high material quality and, In case of questions please contact us at: hello @ knowtheflo.com, COPYRIGHT 2021 © KNOWTHEFLO.COM | ALL RIGHTS RESERVED. These are the most reliable products you could find on the market nowadays. We have not arranged them in any particular order as they are all great. 99 These apparently clever and often cool-looking gadgets promise to sit easily on your dashboard and keep your windshield frost-free, and maybe even heat up the car’s interior as well. The question of whether portable car heaters are any good depends on what you want to use them for. The Sojoy Universal 12V Car Seat Heater is one of its top-rated products. for pricing and availability. It is also extremely effective in healing the body, with its two separate heaters, each with two temperature settings, and it warms up quickly and keeps the heat even and consistent. And the power cord is over 5 feet long, plenty long enough to reach to the back seat. And testing them out has been an enjoyable and heartwarming experience – well, not exactly heart-warming…. Please keep in mind that using the Vosarea windshield heater in this way is not to be done while you are driving – it is dangerous and distracting to do so, and especially so in slick and icy winter conditions. Also, remember to wash off any debris hiding under the cushion because it can reduce the lifespan of the heater. Unplug them whenever you allow the car; most are fire hazards, and a few can drain your vehicle’s battery if left plugged into an idle vehicle. Tseipoaoi Diesel Heater 12V 5KW #4. Sojoy SJ154A 12V Heated Cushion. It … We highly recommend using it in this way, as a hand-held windshield heater, because it will better heat and clear the entire window and will not block your view. However, for those of you who still can’t finalize your decision, we have got your back. This way, not only do you have the assurance of warmth in extremely cold situations, but you can also make sure you have power for emergency lights, for your cell phone or for whatever else you might need. Take a look at our selection of 12 Volt Heaters and 12 Volt Heated Blankets. There are, though, a few other options. In fact, that the most important item any emergency kit can have may well be a good rechargeable power station, and the best affordable unit we have found is the NinjBatt – a silly name but a serious product. List of 10 Best Diesel Heaters in 2020 #10. Harbor Freight (RoadShock) 12V Car Heater. This wonderful product is designed to fit any car or truck seat, and the straps and non-slip backing make it easy to install and keep it in place without any annoying shifting or slipping. And the seat is also designed in such a way that it will fit in any car or truck. And Sojoy products are fully machine-washable – a real rarity among electric blankets. With previous experience working as an editor at a newspaper, I now help knowtheflo.com with content production and of course, test out few products myself! The Comfier heated car seat cushion really lives up to its name – somehow it is just comfier than the others, with a plush faux suede covering and high-density foam beneath. Really, what’s not to love? Black Heated Car Seat Cushion 6 AUDEW Heated Seat Cushion Winter Car Seat 7 Zone Tech Car Heated Seat Cover Cushion And, since it is a ceramic heater, it won’t consume oxygen from your car’s interior. The two functions make the item versatile. We recommend the Yantu 3 Socket Splitter, which also includes two USB sockets. Soft, supportive and luxurious feeling. If you need hot water whilst travelling with a baby, you can control the temperature that you will need to warm food or to add to a drink and you know you won't be handing them boiling water. Not just for campers or RVs, the Hot Logic 12V Food Warming Tote is so useful for long road trips or for working commuters who want to save money on lunch every day. And the perfect heater to include in this emergency kit is the Andily Portable Ceramic Space Heater, a small, safe and extremely effective portable ceramic heater with two heat settings – 750 and 1500 watts. There are indeed manufacturers and buyer’s guides out there which recommend this or that portable heater if your car’s built-in heater is not working, but they won’t actually heat your car, and driving in winter conditions without adequate heating can be unhealthful and dangerous. Save on fuel, reduce pollution, and still stay warm & comfortable while almost 170 degrees of heat keeps your bunk area or camper warm and cozy without running your engine. These are the defining factor for the efficiency of the device. And for anybody who just wants a little more heat in the interior of their car, a portable heater can also be a great idea – not one of those sad little blowers that pop fuses and don’t really put out any heat, but a remarkably effective and satisfying seat warmer or electric blanket. See also: Tinactin Super Absorbent Antifungal Powder, 3.8-Ounce Bottles (Pack of 3) Cheapest Price Check out these related readings Fantastic Deal! UPDATE 03.10.2020: I have added the Harbor Freight (RoadShock) to the best 12V car heater list. Next comes Peak PKCOJ5 12V Heater and Fan/Defroster, it was the #1 Best Seller in Automotive Heaters section. That is why we have decided to put together our own buyer’s guide for the best portable heaters to use in a car. It is also a really good choice to supplement a working car heater if the car’s interior is still too cold – especially in very cold climates or extreme conditions. You see, there are lots of wonderful seat warmers available for your car, which make driving so much warmer and more cosy for you, your passengers and maybe even your cats and dogs. And straps on the cover help ensure it will stay in its place. It is also easy to understand from a more technical angle. And it can be recharged at home, from your car’s cigarette lighter or with an optional solar panel – we like the Rockpals 100 Watt Foldable Solar Panel. it’s intended to be used at close range and not for heating up the entire room. Please note: If you are in North America, this Little Buddy heater is not approved for sale or use in Canada or Massachusetts. Hey! As such, it is a great option if your car’s heater is broken, or is just not working as well as it used to. DC 12V Portable Car Ceramic Heating Heater 200W Fan Window Defroster Demister. Compare; Find My Store. What is the Best Portable Windshield Defroster for my Car? Best Portable Car Heaters Buying Guide. TAUFAOD Air Diesel Heater Muffler 12V 5KW #6. It’s our choice for the best 12 volt heated lunch box for cars in 2020, and is one of the most effective and useful gadgets we’ve even come across! Made from 100% soft polyester fleece, this super soft blanket offers comfort and warmth whether plugged in or not. It can fit in most car’s 12-volt connectors to light it up. You can use it on your hands and feet as well. Best 12 Volt Heater available anywhere, as far as power and heaters that work by warming the air. Learn more. Make sure you retain an eye fixed on heaters that don’t have automatic switches. We earn a commission if you click this link and make a purchase at no additional cost to you. If you live in a place where cold weather is the norm, you can’t do without a high-quality heating system. The Vosarea comes with a mounting bracket for your dashboard, but also has a handle for spot use. What is the Best Portable Seat Warmer for my Car? Car Heater 12V 150W,Windshield Car Heater Fast Heating Defrost Defogger, Auto Ceramic Heater Fan in Cigarette Lighter Heater for Truck 4.7 out of 5 stars 1,656 $27.99 $ 27 . 1.8 out of 5 stars 45. The NinjBatt has pure sine AC power, for any normal electrical product, and can power a heater for hours while still charging and running other devices. I know that, even with all of the safety features offered with the other heaters on our list of best portable heaters for your car in 2020/2021, some people still don’t feel completely comfortable using one in the small interior space of their car. Mr. Heater makes a special version of this heater just for those two places, the Little Buddy Canada / Massachusetts Approved Propane Heater. Find the Top 12 Volt Heater For Car 300 Watts with the MSN Buying Guides >> Compare Products and Brands by Quality, Popularity and Pricing >> Updated 2020 Looking like an oddly misshapen hairdryer, the Vosarea 12 volt heater puts out some hot air, enough to help you warm up and defrost your front windshield. The best way to make sure that you are covered in an emergency, or any time you want or need a heater in your car, is to purchase a great electric heater and also a quality portable emergency battery system. And if you really want to go crazy with comfort, we also love the Snailax Memory Foam Heated Seat Cushion with Massage – just don’t get so relaxed that you can’t drive! Item #2311767. But it seems like this is the best one on the market today, and people are forced to buy whatever is sold. Although in theory, an emergency heater with a rechargeable battery seems like a great idea, in truth there aren’t any that are really effective or dependable enough, or that last long enough on a charge, to be of actual use in an emergency. Propane Heaters – not to be run while driving, while you are sleeping in the car, or with the car completely sealed, these are perfectly safe if you crack the windows and give them some space. Dr. Infrared Heater. 30,000 BTU High Output 12 Volt Auxiliary Heater Well, we have tried many different dashboard heaters and researched lots more, and there is only one possible conclusion: none of them is any good! And still, selecting the best seat warmer currently available was actually quite easy. And, with a unit as great as this ACS auxiliary 12-volt heater, it might actually work better! 1500-Watt Infrared Quartz Cabinet Electric Space Heater with Remote Included. In those situations, an emergency heater can literally save your life, and in any case, it will make waiting much more comfortable, and help keep you and your family calm and positive. With the Little Buddy, you’ll enjoy a more modest 3,800 BTU output, which is still plenty of heat for any car, and for even extreme conditions, and it will operate at maximum output for over five and a half hours. In any conditions, you should pull over and fully stop the vehicle before attempting to use this hand-held heater on your windows, or in any other way. The first thing that we should make clear is that any heater that plugs into your cigarette lighter socket is not going to do much actual heating. They also make the perfect holiday gift for people you care about! I mean, a heater that is hard-wired and permanently installed in your car maybe shouldn’t be referred to as “portable.”. Keep in mind that this 12-volt heater is not a DIY project – it needs to be connected to the battery, not the cigarette lighter socket, needs copper tubing to run from the radiator, and must be securely installed to your car’s interior. I purchased a heater for my truck. This category will cover the last four recommendations in our 2020 buyer’s guide for best portable heaters for cars – the Vosarea Portable 12V Car Heater, the COMFIER 12 Volt Heated Car Seat Cushion, the Sojoy 12V Heated Travel Blanket,and the Hot Logic 12 Volt Food Warming Tote – all four of which plug into the cigarette lighter of your car. I somehow didn’t believe it could be so easy, but you literally just put food in, plug it into the car’s lighter socket and come back in a few hours – anywhere from 1 to 12 hours for precooked food, and 1 to 12 hours if the food needs cooking. What is the Best Portable Lunch Box for my Car? Clean the seat cushion heater consistent with the manufacturer’s instructions; most aren’t water-resistant. Get DZX 12v/24v Car Heater with Rotary Switch,3s Quick Heating,Windscreen Defroster Heater,Power Cord with Protection Functions,12V-B at the best price available today. The unit I purchased online stopped working in only a few days with an electrical burning odor. 1.1 Top Pick - Cigarette Lighter Heater - Best Seller. Plug into 15amp rated 12 volt accessory power outlet only. 1.1.1 12V 150W 2 in 1 Fast Heating Fan; 1.2 Runner Up. We may be cheating here a little bit. 1500-Watt Ceramic Tower Electric Space Heater with Remote Included. And here we should make another point as clear as possible. 1 Best Portable Car Heater Reviews. It also has 4 USB ports, 12 volt and 24-volt outlets and a built-in emergency LED light. This super fleecy blanket warms up so nicely and so quickly, especially considering how light and how soft it is, and its dimensions are ideal for a car – big enough to cover you, but not so big that it gets in the way or distracts the driver. Superfastracing Diesel Heater Tank 12V 8KW #5. Well-engineered and well made, the Comfier 12 Volt Heated Car Seat Cushion is an extremely high-quality product that will keep you nicely warm in any conditions, and is our choice for the best portable seat-warmer for cars in 2020. There are a number of reasons why you might want to get a portable heater to use inside your car, including: Portable car heaters do some of these tasks quite well, and others not so well, and so we would like to first talk a little about each of these applications and what you can expect. Every once in a while you come across a product that is so useful, works so well and is so special that it develops a fierce loyalty among its customers, and the Hot Logic 12-volt food heater is just such a product. I like to share my love for technology and all things tech-related. If used properly, though, it is the best ceramic heater for cars we have found and, in combination with the excellent NinjBatt Portable Power Station, is our choice for a best portable electric heater for cars in 2020, and best emergency heater overall. Our final item in this 2020 buyer’s guide and review of best portable heaters for the car is not actually meant to warm you up – or, at least not directly. You, therefore, need to go through the list to know exactly what matches your needs. I'm James. 10. According to the buyers’ comments, Peak is supplied with a … RoadPro RPSL-581 12V Car Heater. Model #CT22360. Q: WILL THE HEATER STAY ON WHEN THE CAR IS TURNED OFF? Things to Know Before Buying a 12-Volt Car Heater . The Andily portable ceramic heater is designed for home or office use and is not specifically intended for use in a car, so you must be extremely careful and only use it in emergency situations. The Sojoy 12 volt electric blanket has 3 temperature settings and 3 timer settings, all controlled with a handy, easy to read and easy to use hand controller. DC 12V Car Truck Auto Heater Window Hot Cool Fan Windscreen Defroster Demister. But still, while picking out the right one for your vehicle, you still need to look at some important aspects. Knowtheflo.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. The Fourheart heater is designed to be warm and safe on the outside, with smooth surfaces, no cold or hot spots, and a comfortable shape. 1. So please, let your loving partner, your children and your pets, snuggle up in the luxurious warmth of Sojoy electric car blankets, but don’t use one while you are driving lest you get so warm and comfortable that you drift off to sleep! The Comfier 12 volt seat warmer is safe, with a UL listed overheat thermostat and automatic shut-off, and it has a three-stage shut-off timer as well. I just reviewed the Roadpro 12v 300watt straight to battery heater. Defrost or defog quickly with this 12 volt rubberized car heater. Make sure to get a splitter for your cigarette lighter socket so that you can use more than one Comfier heated cushion at the same time. The Mr Heater Little Buddy is a smaller heater, which is safe and fuel-efficient and puts out plenty of heat – really the perfect choice as an emergency heater for your car. The nicest, softest, safest and most useful electric automobile blanket on the market today, the Sojoy 12V Heated Travel Blanket is our choice for the best portable electric blanket for cars in 2020. The Vosarea portable 12 volt car heater is the one you can count on and is our choice for best portable dashboard heater for cars in 2020. Car heaters seem like extremely simple devices, and the truth is that they are. Here at Knowtheflow.com we have recently turned our attention to portable car heaters, and frankly, we’ve become a little concerned about so many of the products out there that either doesn’t really work at all or are unsafe (or both) – and concerned too about so many of the buyer’s guides which unconcernedly recommend those products. To be sure, the ACS 20,000 BTU heater puts out a lot of heat and is good for even larger personal vehicles, but if you are looking for something a bit smaller, with an even lower profile and not quite as much heat, you may want to consider their excellent 13,000 BTU Universal Auxiliary Cab Heater – a perfect choice for compact cars. There must be hundreds of 12-volt heaters which claim to do what this nice little unit actually does, but believe us – they don’t. RoadPro 12V Electric Blanket. Item #783553. ROYADVE 12V Portable Car Heater or Fan The Royadve Portable Car Heater can also function as a fan. How to Fix it. HonsCreat 12V DC Portable 300W Tungsten Car Heater Another value-for-money option to consider, the HonsCreat is a tungsten heater. And speaking of too relaxed to drive, I keep having this terrible fear that the next product on our list of best portable car heaters in 2020 – a soft, plush, totally innocent electric blanket – is dangerous! This is because it comprises the best car heaters as per the recommendations of customers who bought them. 1.2.1 Lasko 100 MyHeat; 1.3 Only Seat Heater - Budget-Friendly. ROYADVE’s Portable Car Heater is very similar to the one above, as it plugs into a 12V lighter port and provides 150W of heat. This category will cover the last four recommendations in our 2020 buyer’s guide for best portable heaters for cars – the Vosarea Portable 12V Car Heater, the COMFIER 12 Volt Heated Car Seat Cushion, the Sojoy 12V Heated Travel Blanket, and the Hot Logic 12 Volt Food Warming Tote – all four of which plug into the cigarette lighter of your car. This 12 volt heater is safe to use in your car or RV and is ideal for freezing mornings during winter and perfect for children and passengers sitting on the back seat during longer journeys. Read More. We have found that in this case there are only a few basic types of heaters that you can really depend upon in an emergency and that in any situation will always work well for you: There are a very few cigarette lighter heaters which work well, and we will include those below as well, and one rechargeable electric heater – though this one might not be what you expect! The Vosarea portable 12-volt car heater is the one you can count on and is our choice for best 12-volt dashboard heater for cars in 2020/2021. IAXSEE Car Heater 12V Portable Auto Electronic Heater You will not be able to heat up a large vehicle with this product, but you can probably keep your windshield nice and defrosted and stay fairly warm in the process. Lasko 12v Car heater Lasko has created a compact personal heater with great features that will be used anywhere with much comfort. From our observation, we think the best one in the list above would be the Do not save money now and regret it later – especially for something as important as an emergency heater. These compact 12-volt heaters are great additions to your cars emergency kit and are an inexpensive alternative to repairing a broken heating system in a beater car. The Hot Logic Food Warming Tote doesn’t dry food out, it preserves all of the flavors and it makes absolutely no mess. Developed By Digitalblacksmiths. It is worthless. It will reheat leftovers and keep them at your desired temperature, but it will also cook foods – even frozen or raw meat – quickly and easily, with no muss and no fuss, and keep them too at the perfect temperature until you are ready to eat. Ultra easy to use, the Fourheart has only one button, for power on and off and to switch between three temperature levels: 107° F (42°C), 118° F (48° C) and 131° F (55° C), and will stay warm for up to 8 hours on a charge. If you like to keep the car’s heater low while you drive but your passengers get cold, if you and your partner can’t agree on running the air conditioner, or if your car heater just isn’t warming things up enough, this is a great solution. Knowtheflo.com also participates in affiliate programs with Bluehost, Clickbank, CJ, ShareASale, and other sites. Just plug it … The Vosarea 12V portable car heater comes with a cigarette lighter adapter, is made from high-quality ABS plastic and feels nice and solid in the hand. It is up to you to choose which one will be your new acquisition. Whether you are looking for assurance and backup in case of emergency, warmth and comfort, or even nicely cooked hot food, you can select any one of the products on our buyer’s guide – Top 7 Portable Heaters for your Car (2020 Edition) – with total confidence, and we’re sure you’ll be more than happy with your purchase. There are some products that will concede to wear and tear faster than others, and it’s an honest idea to examine them for any exposed wires or fabric tears. NO.32 Diesel Heater Muffler 12V 5KW #3. Indeed, there are many situations where the Sojoy 12 volt heated car blanket can be useful, and it is always a joy to have and to use. The Best Car Seat Covers; 1 Wagan Soft Velour 12V Heated Seat Cushion 2 Sojoy SJ154A Universal 12V Heated Car Seat Heater 3 SNAILAX Seat Cushion 4 KINGLETING 12-Volt Heated Seat Cushion 5 Zento Deals 2pc. 360° swivel base for dash mounting; Swing-out handle lets you use the heater as a spot defroster; Separate switches for heater, fan and lamp Keep the heating element away from anything flammable, and do not fall asleep when it is running. The control panel is easy to read and easy to use, and will not be too distracting – it is still recommended, though, that you do not adjust your Comfier seat heater while you are driving. If you have researched just how expensive it can be to have a car’s heater repaired or replaced, you know that you could easily purchase this remarkably effective heater and have a professional mechanic install it for you, and it still would be considerably less expensive than the first option. But, if you’ll allow us, we simply couldn’t get behind the idea of using any portable heater as a replacement for a broken factory heater. Q: ARE THERE ANY RISKS INVOLVED WITH CAR HEATERS? If the last category consisted of one single stand-out product in a field of heaters that didn’t work at all, this category in our list of best portable car heaters in 2020 is almost exactly the opposite. A tiny, rechargeable heater that can be put in your pockets, your boots or your jacket, and will run for hours on a single charge, the Fourheart will not be enough to keep you alive in the most extreme conditions, but it can make waiting for a tow truck or heroic family member a lot more pleasant. Industrial quality materials and construction, simple and reliable design and an exceptionally high level of effectiveness – whether you are replacing or just supplementing your car, truck, van or SUV’s factory heater, this powerful unit is a perfect choice and is our choice for a best portable direct wired heater for cars in 2020. The kind of electrical current required to heat even smaller space, like the interior of a car, is so great that you would be blowing fuses in the lighter’s circuitry all the time. Mr. Heater Little Buddy F215100 MH4B Propane Heater, Mr. Heater F215100 MH4B Little Buddy 3800-BTU Indoor Safe Propane Heater, Medium, NinjaBatt Portable Power Station with 288Wh Lithium Battery, 110V/300W Pure Sine Wave AC Outlet, Andily Compact Portable Ceramic Space Heater- with Adjustable Comfort control Thermostat, 20,000 BTU 12V Low Profile Universal Auxiliary Cab Heater Car, UTV, Truck, Van, American Cooling Systems 20,000 BTU heater, American Cooling Solutions 20,000 BTU 12V Low Profile Universal Auxiliary Cab Heater, 13,000 BTU Universal Auxiliary Cab Heater, Fourheart Rechargeable Hand Warmers,Double-Side Heating Gift for Raynauds Arthritic Sufferers Pain Relief, Ski, Hunting, Hiking, Winter Gifts, VOSAREA Portable 12V Car Heater Heating Fan Demister with Cigarette Lighter Plug, COMFIER Heated Seat Cushion for Car Seat Warmer, Universal 12V Car Seat Heater with Adjuatable Temperature, SOJOY 12V Heated Smart Multifunctional Travel Machine Washable Electric Blanket for Car, Truck, Boats, Hot Logic Food Warming Tote 12V, Lunch, Black, To keep you, or your passengers, warmer while driving, To replace a broken or inadequate factory, To help keep your windows clear and defrosted. What is the Best Portable Electric Blanket for my Car? So cigarette lighter heaters, to prevent this, just don’t get that warm and are not really effective.