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Can I Run A Space Heater In My Car

author
Maria Johnson
• Friday, 20 November, 2020
• 7 min read

There are two reasons why you might consider using a space heater as an electric car heater : as a replacement for a malfunctioning HVAC system or as an alternative to garaging your vehicle. The major pitfalls may include power supply bottlenecks, fire hazards, and heat loss.

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Contents

The most powerful 12 V car heaters require a direct connection to the battery due to the amount of amperage they draw. In cases where a space heater is used to substitute for a malfunctioning car heater system, it's typically best to use a 12V heater.

Regardless of why you use an electric heater in your car, the most important question to consider is whether you'll create a fire hazard in the process. The specific distance can vary, but it's typically at least a few feet, making it difficult to find a safe location to place a residential space heater inside a car or truck.

When selecting a space heater to use as an electric car heater, consider the volume of the air that needs to be warmed up in addition to heat loss. That's why your car gets hot when you park it in the sun, and also why it loses heat quickly after you shut the engine off in the winter.

I'm sick of frosted windows and 2 inches of ice on the car each morning, and I don't have an auto starter, so I have to go outside ahead of time if I want to start the car, which normally does not happen as I don't really want to be going outside in -30 winds straight out of bed, I'm already cold enough and just want to get into the scalding hot shower. Also starting the car ahead is just a big waste of gas and creates a lot of pollution, so this is also a “green” project if you will.

So I've been toying with the idea of finding a way to run electric heat to the car and have it on a timer, so it starts automatic a few hours before I leave. Guessing since they are such low wattage they can be safely set on the dash... but they don't really put out enough heat to melt ice.

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As for power, you may be able to simply run a heavy-duty outdoor extension cord into the car and close the door on it. The rubber door seals should have enough “wiggle” room to allow for the cord without pinching it.

If we're talking about a 90s Ford Taurus, you've probably got inch-wide panel gaps and could fit a fire hose through them, but other cars are built to much tighter tolerances and may not be able to clear the cord. Obviously you should test closing the door and examine the cord before actually using the heater to make sure it doesn't get pinched.

Hmm, true so if it's a small space high wattage is maybe less of a concern, and never even thought of trying to pass the extension and shut the door over it, I'll have to test that and see if it works ok. Look I live in Saskatchewan I have a crappy tire interior warmer and it's directed into the cabin, not the windshield, and it does a nice job of taking out the chill in the air inside a minivan, huge space It won't clear a windshield but if it was directed at the windshield maybe, they are about 900 W, 110 is run through the firewall and ganged on the block heater about 600WIf you already own say a small ceramic heater 1500 w you could set that on your dash and run the cord closed on the door to try.

Just member you have about 1800 W I like the mounted interior warmer cause when I plug in at work for the day its toasty The timer idea is a fine one, and they come on sale at crappy tire often. Hmm, true so if it's a small space high wattage is maybe less of a concern, and never even thought of trying to pass the extension and shut the door over it, I'll have to test that and see if it works ok.

I could try to run through the firewall, but I don't know enough about cars to be drilling holes, I might hit something that I don't realize is there. Not to mention it's freaked cold to be working on a car at this time of year.

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(Source: www.boostedfalcon.net)

I'm sick of frosted windows and 2 inches of ice on the car each morning, and I don't have an auto starter, so I have to go outside ahead of time if I want to start the car, which normally does not happen as I don't really want to be going outside in -30 winds straight out of bed, I'm already cold enough and just want to get into the scalding hot shower. Also starting the car ahead is just a big waste of gas and creates a lot of pollution, so this is also a “green” project if you will. So I've been toying with the idea of finding a way to run electric heat to the car and have it on a timer, so it starts automatic a few hours before I leave.

You're not willing to burn 5 minutes worth of idling gas, but you're happy to run a 1500W space heater for several hours? Get a 2-way remote starter. You're not willing to burn 5 minutes worth of idling gas, but you're happy to run a 1500W space heater for several hours? Get a 2-way remote starter.

I know a lot of people use the remote starters, but it seems like a bad idea unless the car is far from the house because of carbon monoxide and other fumes The amount of fuel at idle is insignificant, and if it's that cold, the engine really needs to warm up and not just be started up and driven off immediately. I start my cars 5-10 mins before I leave in a closed garage on the coldest mornings.

Besides when it's time to leave, the big door is opening, and you're only spending 5 seconds walking to the car. As long as the auto start can work while the doors are still locked, you have no issues outside in an open area.

Make no illusions about what's “green”, all you're doing with an electric heater is transferring the energy and pollution cost elsewhere, out of sight out of mind. Not at this point (storing my dad's car in it, he needed a spot for it and paid me) and since Mylar is old, using the garage is a catch 22.

heater delete question box pic
(Source: ls1tech.com)

Auto start would be nice, but it's really not worth it on a car as old as mine. Think in the summer I'll just see if I can figure out a good way to run a wire from the engine block area to the inside, and make the engine block cord power the outlet inside, then I can experiment with different heaters from there.

FYI, my 2008 Jeep with a 5.7L V8 burns just less than 1/2 gallon of gas per hour at idle.CIRC, my 1996 Chevy Alumina 3.1L V6 was about half that. So, not going to cost much in fuel to warm up the car and defrost the windows.

The amount of fuel at idle is insignificant, and if it's that cold, the engine really needs to warm up and not just be started up and driven off immediately. I start my cars 5-10 mins before I leave in a closed garage on the coldest mornings. Besides when it's time to leave, the big door is opening, and you're only spending 5 seconds walking to the car.

As long as the auto start can work while the doors are still locked, you have no issues outside in an open area. Make no illusions about what's “green”, all you're doing with an electric heater is transferring the energy and pollution cost elsewhere, out of sight out of mind.

People die driving their cars down the street and when they get on airplanes too. Common sense and precaution is one thing, but schizophrenic paranoia over everything that might kill you one day is entirely another. The house was built with CO+smoke detectors in every room, have not had one go off in the 5 years I've warmed up my cars in the garage.

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(Source: bestreviews.com)

Building codes these days are pretty good regarding the hazards of an attached garage. I know you live in a cold climate, but it's not that bad (at least when you don't have to clean a lot snow and ice off).

In addition, especially when it's so cold, it's better for your car to be started (especially short trips) and warmed also, so oil flows fully throughout. It's funny to see people get in their cars in the winter and tear ass out as soon as it's started.

In this article, we’re going to cover everything you need to know about whether you can power a space heater off a car battery when there’s no other energy source around! In an emergency survival situation, you’ll try everything you can to stay warm.

So, is it a practical solution to connect a space heater to your car battery? At the end of this article, I’ll give you a much better alternative for heating than trying to run a space heater off your car battery.

UH Manor Chemistry Department If short-circuited, car batteries can deliver up to 300A (caution: extremely dangerous). However, according to what the quote above says, you shouldn’t discharge a car battery at a higher current draw than it’s rating divided by 10.

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(Source: www.reddit.com)

But in an emergency situation, where you need to keep warm, you don’t care about that rate. So, theoretically, a car battery can produce enough energy to run a space heater.

So, you would need to install an electrical inverter (a device that transforms DC to AC). Additionally, car batteries have a voltage of 12V, whereas a space heater needs 120V (or 240V in Europe).

And we didn’t even account for the energy losses of the inverter and transformer. We’re going to cover whether it actually makes sense to power a space heater with a car battery.

High current draw puts stress on car battery: The high amount of current your space heater needs puts a lot of stress on your space heater. If you remember what we talked about before, you shouldn’t pull more than 4.5A from a car battery.

Connecting a space heater to it would put the same stress on your battery as cranking the engine continuously (for hours)! Risk of damage: You simply shouldn’t play around with such high current devices.

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(Source: www.jaguarforums.com)

Car batteries and space heaters are a dangerous combination. Cars usually have poor insulation and the heat will quickly disappear.

There are some alternatives for keeping warm when you don’t have access to electricity that you need to consider before even thinking about using a car battery. Usually, they are smaller than regular space heaters, but they are just fine for keeping the temperature up in a car.

For heating a home without electricity, the very best way I know of is using an indoor propane heater. When I reviewed whether you can use a generator to power a space heater, I also concluded that propane heaters are a safer, more efficient and more durable method to keep warm without electricity.

Answer: Yes, with a little technical know-how, you Cancun a space heater off a car battery. Additionally, it will only keep you warm for around 3 hours until the battery is drained, and it’s dangerous as well (you’re playing with high current devices).

Instead, you should get an indoor propane heater to keep warm in an energy outage. He studied electrical engineering and information technology and decided to blog about heaters after working in the temperature sensing industry.

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