I am a HVAC-R service tech who has bought a new to me home in the ( North East ) I am in need of assistance in the water side of the geo heat pump in regards to piping,Tonnage and if in fact I can use the domestic well I have in my home. any info would greatly be appreciated as far as install/specs. It seems to me that the equipment end is easily accessible but the water/glycol side is under tight wraps.Can I use the existing (Dom) well and how is the install performed. Thank you

You might want to post this over on the Geothermal forum.

Greetings subzero, welcome to the forums.

Geothermal heat pumps can work with well water. Scaling can be a problem. You need 2 gpm per ton flow for the heat pump to work properly. You also need a place to discharge the water after going through the heat pump.

Tonnage is determined by doing a heat loss calculation on your house.

If you go with a closed ground loop with antifreeze, then you need 3gpm per ton.

As far as being "under tight wraps".... each system has do be designed according to the specifics of the site, building, resources, etc.

This is still an emerging industry and you can't expect to find all of the answers just floating around.

This forum is here to help, but a few of people come with unrealistic expectations and leave disappointed.

Hope we can help