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Old 11-19-2012, 09:47 PM   #1 (permalink)
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Default Looking for the best 12v dash heater

I am looking for a cigarette lighter 12 volt heater for my car. I am trying to find a quality one that won't break on the first use.

Please spare me your thoughts on how inferior they are in general. I know 12 volt only gives you so much heat. Just want a little extra help on my windshield.
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Old 11-20-2012, 12:14 PM   #2 (permalink)
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Check Harbor Freight Tools.
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Old 11-20-2012, 02:09 PM   #3 (permalink)
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Try this.
12V Heater w/ Fan
And this.
http://www.12volt-travel.com/12-volt...ters-c-94.html
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Old 11-20-2012, 03:26 PM   #4 (permalink)
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Trust me it takes a lot of electrical power to make a small heater put out he heat you want, any these little mickey mouse heaters dont have what it takes with only 12 volts. I had one a few years ago , what a joke!
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Old 11-20-2012, 03:34 PM   #5 (permalink)
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Quote:
Please spare me your thoughts on how inferior they are in general.
This is why I didn't offer my opinion
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Old 11-20-2012, 03:40 PM   #6 (permalink)
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Fact is, creating heat from an electrical source requires lots of power. Not that it's a bad idea or anything, it just seems pointless when you have 200F+ coolant flowing in the car just waiting to be cooled. Is there something wrong with the heat in your car?

The only time electrical heat in a car makes sense is if you'll be sitting in it for long periods without the engine idling.
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Old 11-20-2012, 03:44 PM   #7 (permalink)
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Get ya one of these.
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Old 11-20-2012, 03:51 PM   #8 (permalink)
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The alternator cannot support any decent amount of electric heating... the maximum capacity is some 900-1100W.
Quote:
Originally Posted by 901-Memphis View Post
Just want a little extra help on my windshield.
The defrost option in your car will dehumidify the air that you blow onto windshield. De-humidification is done with the automatic use of the A/C compressor.
Blowing only slightly heated (but still humid) air on the cold windshield (cooled from outside air) will not help as you think.

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Old 11-20-2012, 08:01 PM   #9 (permalink)
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There isn't a whole lot of power available from the cigarette lighter port. It's a 20 amp fuse, so you really only have about 200 watts to work with. The average space heater starts at 1000 watts.

If your defrost isn't working well, you might have a clogged cabin air filter or your heater core might be partially blocked and you might not be getting full heat.
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Old 11-21-2012, 06:10 PM   #10 (permalink)
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My core is plugged and my compressor doesn't work. I don't want to replace the core as I'm hoping to get a new car with tax return.
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