Thursday, August 30, 2012

Step one - Ground Loop

The ground loop is basically a really long plastic pipe that is stuck in the ground and filled with water.  The ground temperature is more consistent than the air temperature so it's more efficient at heat transfer than air is.

So, how do they put the pipe in the ground?  The AC contractor hires someone with a truck like this:

And then they drill a hole (or a few holes) in the ground.  My system has 3 holes that are 330' each.  When they're done, they put the piping in, and grout the hole:

Then they connect the three wells together:

Then they run those lines to the installation site of the heat exchanger.

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