mws Posted February 7, 2014 Report Share Posted February 7, 2014 For those of you on the Hot Tub forum as well, this may look familiar. Posting this in case it helps anyone else getting killed by their electric bills. I keep the swim spa at 88*F all year long and the hot tub around 103*F all year long. I will say up front, this may or may not be to code in your area. the workings in the swim spa itself the workings around the water heater in the barn next to the swim spa and hot tub. 1 Quote Link to comment Share on other sites More sharing options...
depger4 Posted January 14, 2022 Report Share Posted January 14, 2022 What shell and tube heat exchanger did you use? Hopefully you're still linked to his posting. I'm designing my conversion and wanted to see what model/brand. Quote Link to comment Share on other sites More sharing options...
arnspa Posted February 8, 2022 Report Share Posted February 8, 2022 Ingenious! When we got our H2X 12 years ago, we also got rooftop solar that has kept the bills low. Quote Link to comment Share on other sites More sharing options...
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