"Bob F" wrote in message
...
.-. wrote:
A neighbor of mine installed a ground water heat pump to heat and
cool his house. For a house of about 2500 square feet and well
insulated, it takes the water from 5 wells to supply enough BTUs
winter and summer to keep the house comfortable. It's very energy
efficient because the high volume of well water, either coming or
going is always about 50 degrees F +/- 10 degrees., so it can either
give or take plenty of BTUs, but drilling the wells was expensive.


Any idea how much water that is?


No, but I'll see if I can find out and post back. Some of the wells are
supply and the others are return and which is which depends upon the water
temperature as well as what mode the heat pump is in (heat or cool).

Tomsic