Ok, so I have read all the posts about the hotspot FPH heat exchanger and I am intrigued. But I am not sure if it is worth the extra cost and headache. I am in Nebraska so I really just want to extend my season. But at the time I would want to extend my season I would use my AC a lot less than I would want to heat my pool. So I would still have to have some backup heat pump or NG heater. As I look at how pool heat pumps are made, it seems as if the heat exchanger within a heat pump is almost exactly the same as the heat exchanger unit for the FPH. If I am totally wrong, please help me out. Why couldn't an AC unit be directly connected to a heat pump heat exchanger? I am guessing this would end up a more complicated system to control? If the AC is running AND the water is cold, run the heat out to the heat pump exchanger. If the AC is running but the pool is at temp, run the AC as normal. If the pool needs heat but the AC isn't running, then run the heat pump as normal. I am currently in planning stages of both building a house and a pool at the same time so I am just looking at options.