I LOVE the heater. My spa heats from stone cold in 15 minutes or less. I love having no pilot light. The heater is smaller than my old one, but very high power. Our gas costs are high too, so I figured it costs about $6/hour to run the gas heater. I also only run the gas to heat the pool before a big party or in the early morning. I am not using all of the heater's controls though...my Jandy Aqualink controls the setpoints etc.

You can pm me if you wish.