Carrier 3 ton, Infinity Geo - Trying to optimize our system to be as efficient as possible. I monitor the incoming/exiting water temps with sensors at the unit in the attic. Its not uncommon to see a swing in incoming water temps dependent on the weather outside. The 4 wells are 60 ft from where the pipes exit the house, only 36 inches down, but not insulated. I keep wondering if the 60 ft of uninsulated pipe is sapping efficiency by giving me warmer water in the summer and cooler water in the winter. It would be a chore, but I could insulate to the tops of the wells. What is everyone's thoughts?