I am new to this board and have been trying to find reviews/comments on the Pentair ETI Hybrid heater from people that have them in use or have installed them in the field. I am having a hard time finding much actual usage information. I am building a pool in south Florida where I have no natural gas so I need to heat using propane which is very expensive. This unit seems to fit my need to be able to heat my spa quickly but then be more economical to maintain my pool temp for swimming. Can anyone provide some info or point me in the right direction to find actual usage info? Thanks