Rick runs the water that he is using for lawn watering through a heat exchanger first and extracts some "coolth" from it before it goes out to the yard.
|Rick's current test setup.|
The energy use is very low -- the COP appears to be about 29 (SEER 125!).
|Side of HX with water connections.|
All the details on lawn water for cooling here...
Thanks very much to Rick for sending this in.