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How Do Grid Heaters Work?

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Old 05-10-2006, 11:51 AM
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How Do Grid Heaters Work?

I know they're electric and they cycle but what are they heating? I heard they heat the intake air but would like clarification. Thanks.
Old 05-10-2006, 11:57 AM
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They heat the intake air as it's drawn into the intake manifold.

Rusty
Old 05-10-2006, 01:04 PM
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Theres a metal strip that has a lot of bends -[[[[[[[ so that a one foot strip can fit into a 3" hole , either end is connected to power , basicly a controled short , this gets hot so when the air gets suck in its warm .
Old 05-11-2006, 12:19 PM
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Originally Posted by John Faughn
Theres a metal strip that has a lot of bends -[[[[[[[ so that a one foot strip can fit into a 3" hole , either end is connected to power , basicly a controled short , this gets hot so when the air gets suck in its warm .
Does the intake air always have to go thru the grid heater after the engine starts or is there a flap/alternate intake that bypasses the grid heater?
Old 05-11-2006, 12:23 PM
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The air always passes through the grid heater. It is only energized when it is required, however.

Rusty
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