So; I have been browsing the forum and topics but cant find much info on the differences and benifits of different types of hot water finishing- I am going with a water to water system and plan on heating only as in the northern part of VT we really only need a couple of days of cooling. my general questions are pertaining to the best ways to get water to domestic temp; such as 1) a electric water heater tank fed by a zone valve from the pump and then used with heating element set to proper temp - Delta T about 30' ? 2)Hot water storage tank such as solar or boiler tank that has a heating loop inside fed by the GSHP and then finished with a tankless LP heater or electric type so again not alot of temp rasing needed. 3) Desuperheaters seem to make sense only when you have cooling loads and not sure if that will benifit in our heat only senerio ? 4)hybrid water heater or one of those 97% lp models? i read reviews of the hybrids that didtnt sound promising (recovery time,fluxuation temp) our high Killowatt hours might mean better for the LP but not sure? some of the heat pumps are boasting 130' leaving water temp- isnt that hot anough for domestic? my childeren are growing so i expect hot water to be a big portion of our heating requirement as they come to shower age and am thinking of 50-80 gallons of hotwater. Thoughts please you proffesional's out there!