I've been reading this forum from time to time for years, but have never posted. Glad to have joined. I need some help. 5 years ago, the compressor on my Trane geo unit (5 ton) blew up. Dealer got Trane to cover the compressor, but I had to pay labor. $1500 into the unit. March of 16, the heat exchanger blew up and I had to replace the unit. Went with American Standard (Waterfurnace) and downsized to a 4 ton unit because that was the "correct" size for my home. Also, 5 ton unit was too tall to fit in my 112 year old basement. This thing is killing me. On the Trane, if we got a $500 a month utility bill, it meant that the water source side of the unit had stopped working (bad TACO valve was usually the culprit), now we get a $500+ utility bill every time the weather is below 30 degrees. The 1st stage heat pump runs constantly (and I do mean constantly) if the weather is below 20 degrees. If we make it to 15 degrees, 2nd stage is running, and sometimes the electrical strip heat is firing. We usually keep the heat at 67 degrees, but when it gets cold, we have to drop it to 64 or the unit can't keep up. We have an open loop system with a 1HP 220 well pump. We have a 44 gallon pressure tank, and the Geo has a 10GPM restrictor on the output side of the loop. The well is cycling. A LOT. It’s running 51 seconds on, 51 seconds off, which I know is bad for the pump in both metrics. I think managing that will help, but I'm not sure what option will work best for me. My thoughts on options: A) Replace the well pump with a variable speed unit and controller to reduce start/stop cycles. $$$$$ (I don't really have this kind of money right now) B) Replace the 44 gallon pressure tank (7 years old) with at least one 86 gallon tank. $$$ C) Insulate the Attic with spray foam around all penetrations and cellulose to 16". $$$$ (This ends up being an enormous project) D) Install a Cycle Stop Valve or an Amtrol CP Guardian pressure switch. $$ E) Dig a bigass hole in the ground and lay down a closed loop next summer, and suck it up in the meantime. $$$$$$$$$$$$$$$$$$$ F) Burn the house down and start new. $ Any help, guidance, tricks, or suggestions would be enormously helpful. I answered as many of the questions as possible in the sticky: 1) Northeast Indiana - 46788 2) I do not have these. The home is a 1905 brick on brick farm house. 2600sq ft. New windows, very little wall insulation in brick section. Decent attic insulation. 3) American Standard A2GX049TLR13N1H installed in 2016. 4 Tons. 4) Open loop. 1HP well pump producing 18GPM. 5) $.12/KWH. Consumption varies month to month, but geo unit is single largest consumer of power on property. 6) EAT - 69.0*F LAT - 101.3*F (This is in 2nd State Heat Pump) 7) EWT - 57*F LWT - 46*F (This is in 2nd Stage Heat Pump) 8) 100% to be carried by Geo. Balance point unknown. 9) Installer may have been an idiot. 10) Generally, far too expensive to operate.