I had wondered about using water to cool my central a/c unit but I am on city water so i figured it was inefficient. I love the idea of using rain water and especially the condensate from the evaporator. Now i just need to come up with building plans for this.
My a/c unit is on the east side of the house, so in the morning when it has sun on it, i generally do not need it on. There are also several trees around my house that provide shade for the a/c unit.
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