The more I consider ASHP I realize the basic installation is very simple. Am I correct in thinking the complexities are further downstream with buffer tanks and other gadgets needed to raise the luke warm ASHP output to that required for DHW?   If I wanted to build in support for later adoption of ASHP and coupling to UFH what is needed? Here is my guess: High capacity electrical circuit of say 5 to 8 amps terminated on an outside wall socket. A pair of water pipes routed