Are any brand heater better - yes, I am on the learning curve. I need a spa for my hands and shoulder. We just installed solar and don't really want to eat up all my sun power with the tub. I will look through the threads and see what I can find as well. We bought a used 2002 Caldera Geneva and it was using about 45kw a day - ouch. My power bill DOUBLED!! Not sure what is wrong but I refuse to pay that much to heat a spa. This was in May - so it was not cold. After one month I unplugged the heater ;( I had it set at 102, but well insulated and a fairly new cover.
We don't really have any local dealers and can change any part on a spa ourselves. This was a bigger spa than I was looking for anyhow - looking for a 3 or 4 person - advice? THANKS!