Hey All I have a cottage in MA that I use year round 600 sq.ft. There is electric baseboard in the cottage but I was looking at alternatives like a small pellet stove but those are $1k... an came across geo.. and love the concept plus I get cooling in the summer... I'm Looking to make it practical for this particular environment. I live on an island, the cottage is close the water on very sandy soil,a beach, there is well water from a near well. The island has no bridge or roads so no heavy equipment can be used, digging is a manual affair, in sand. Otherwise I would be considering the underground closed loop. I was thinking of a 1 ton open system where the water can drain back through the sand near the well and essentially circulate. Or a closed system if the water tests bad, then use a heat exchanger and dump the water back. I'm not sure installing a underground loop would be practical in sand with the water level only a few feed below and by the size of the loops I've seen that looks like a lot of digging. Since I already have the well setup I could expand that to accommodate a closed or open loop system cooled/heated by well water. Does this sound feasible?