Free Hot Water??
For over 20 years, in several different houses, I've used a heat recovery units on my Heat Pump (in central Florida). My new house has a 13 SEER 3.5 ton heat pump and the HRU delivers all the hot water my family can use (I put in a 80 gallon water heater as a storage...in retrospect I probably should have gotten a 120). Anyone have any comments or experiences with them? I feel in Florida it's much more bang for the buck than solar hot water. A switch on the ciruculating pump lets you see the effect on the AC equipment...my 3.5 ton draws 11.7 amps with 87 degree outside temp and drops to 9.6 when the circulator pump is turned on.