From my reading of heat pumps, mismatches in energy sources and sinks can make linking things together more complicated (aka more expensive) than is commonly av

From my reading of heat pumps, mismatches in energy sources and sinks can make linking things together more complicated (aka more expensive) than is commonly available. For the pool <-> A/C case, This Old House did a segment on linking the systems: https://www.youtube.com/watch?v=J7fB8ul9dZw https://www.youtube.com/watch?v=J7fB8ul9dZw Edit: chris_va has more details about why linking systems is hard: https://news.ycombinator.com/item?id=23001888 https://news.ycombinator.com/item?id=23001888