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Old 11-23-2012, 04:21 PM   #6
2manycars
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Join Date: May 2010
Location: Eastern CT
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Default Re: Built your own Manifold Heater

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Quote:
Originally Posted by Banky View Post
Do any of these, even the most common one, actually produce enough heat to be worth it? Or would an extra pair of underwear and socks produce the same amount of warmth?
The trouble with manifold heaters is that they are heating air that is cold ambiant air. They are not really very good, and the colder it gets, the more heat you desire, but as the air is colder, it comes out of the heater less hot than on a nice day. It is still better than nothing, but maybe some woolies and double socks would do as well.
I have one in my tudor, and the hole was already in the firewall when I got the car.
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