I am planning a geothermal installation at my home in RI. Ground water temperature is about 50*. It will use a well as a source and exit into a pond. I want to get heat, AC and DHW. I want to heat with the existing radiant floor.
The well is a 500', 6", 15 GPM existing(new) well with a head of 15' approximately 40' from the location in the basement where the GSHP will be which is at the elevation of the well head.
The house is well insulated and sealed and will need a 3-4 ton unit. There is existing hydronic radiant floor heat, 1/2 above floor(climate panel) and 1/2 between joists with heat plates. It is plumbed Primary/secondary.
The AC evaporator will be in the attic 24' above the GSHP. This will feed into existing Space Pac 3" duct work system which is already installed.
I need help determining the size of the well pump and type of controls. Should I run directly to the GSHP as posts on this site suggest or use a pressure tank or CSV? What effect is high Iron and manganese and possible brackish water(with a Cu/nickel exchanger)? Some on other sites suggest a buffering tank after the GSHP what do you think and how does one size it?
Does the evaporator get fed direct well water? or through the GSHP? Can I use anyone's evaporator or have to use the one from Space Pac?
Whose GSHP with a cu/ni exchanger do you recommend which would work most efficiently for me. What kind of specs should I be looking for? Should I use a 3 ton which is on the small side as suggested here and depend on the boiler kicking in to supplement it on very cold days?
Any help would be appreciated and please point out anything I am missing here.
The well is a 500', 6", 15 GPM existing(new) well with a head of 15' approximately 40' from the location in the basement where the GSHP will be which is at the elevation of the well head.
The house is well insulated and sealed and will need a 3-4 ton unit. There is existing hydronic radiant floor heat, 1/2 above floor(climate panel) and 1/2 between joists with heat plates. It is plumbed Primary/secondary.
The AC evaporator will be in the attic 24' above the GSHP. This will feed into existing Space Pac 3" duct work system which is already installed.
I need help determining the size of the well pump and type of controls. Should I run directly to the GSHP as posts on this site suggest or use a pressure tank or CSV? What effect is high Iron and manganese and possible brackish water(with a Cu/nickel exchanger)? Some on other sites suggest a buffering tank after the GSHP what do you think and how does one size it?
Does the evaporator get fed direct well water? or through the GSHP? Can I use anyone's evaporator or have to use the one from Space Pac?
Whose GSHP with a cu/ni exchanger do you recommend which would work most efficiently for me. What kind of specs should I be looking for? Should I use a 3 ton which is on the small side as suggested here and depend on the boiler kicking in to supplement it on very cold days?
Any help would be appreciated and please point out anything I am missing here.