I've seen some plans for quite intricate and complex fog chillers. They work well; However, a good fog chiller can be quite simple and built with little effort or money.

The bigger the ice chest the better

Start with a cheep ice chest. Even the really cheep Styrofoam ice chests work well. 48 quart is a good size for a 700 watt fogger, though it doesn't work badly for a 1300 watt unit either.

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So I cut a 4" diameter hole on each side of the ice chest (input and output).

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I used a rotozip tool: but, a jig saw works just as well

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Cut 2 pieces of 4" diameter drain pipe to fit all the way across the inside of the ice chest and still leave 2" sticking out to connect to other pipe

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Drill holes in the part of the drain pipe that will be inside the ice chest

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Fit the drain pipes back into the ice chest.

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And seal them in place. I used silicon sealant. Don't let the big dispenser scare you it's just what I had on hand. A 3oz tube is more then enough for this job

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Here's the finished product. I use to put a baffle between the input and output tubes to force the fog to take a longer path through the ice; but, I had one break last year and it didn't seem to make any difference.

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Last updated 10/01/03