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I've noticed that most cars have a heater that takes a few minutes to start after the car has been started, presumably because it derives its heat from the engine which hasn't heater up yet.

Are there heaters which don't use engine heat and thus start up at once? What are they called? Can you add it to an existing car or does it have to come with the car? I really would like to get in to a car that blows hot air at me right away.

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Presumably... you are correct about heatering up. ;) – NitroxDM Nov 5 '12 at 2:42

The cheapest way to do so, would be to add something like this aftermarket accessory. Looking for any in-dash options would likely be more expensive.

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Does anyone have a recommendation for a good aftermarket accessory that works well? – Timbo Oct 11 '12 at 2:22

Another option that you could look into is getting an engine block heater fitted. Essentially, you plug those into a wall outlet and they warm up the coolant which both helps with cold starts if you're in a cold climate, and you should get warm air out of the heater fairly quickly compared to a car without a block heater.

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Thanks. Unfortunately I don't have a wall outlet where I park my car. – Timbo Oct 11 '12 at 15:45

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