Free Lifetime A/C – $40

FirstFrameWe’ve just they french-drain & vent/cooling tubes.  These tubes bring geo-thermally cooled fresh air to the back of the house. 

The tubes run underground so the incoming air is cooled to about 55 degrees.  In the summer this is A/C in the winter it is significantly warmer than the outside air.  The concept utilizes the geo-stable temperature of the ground below frost line.

The insulation is inside the pipe – but the pipe is buried under 3-5 feet of earth well below frost line.

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