I was thinking you were just running a coil of water on the evaporator coil of the window ac, and using the same circulation pump to move water over it- kindof a getto air-water heat pump.I have a 1/3 hp chiller sitting in my garage and another 1/4 hp as well. If I decided to go the titanium exchanger route and spit between a window unit and the boiler how would that actually work?. The boiler is sending hot water and the AC unit is sending freon. I'm far from a heat and AC guy that's why im asking. I'm wondering if I'm better off using a heat exchanger for heat and then a titanium coil for chilling? Any thoughts.
If you are going to do it with actual freon, then you might as well buy a $600 mini split and get both heating and cooling out of it- I just have no idea how you would do this (Yet).