Greg T. Posted March 31, 2021 Report Share Posted March 31, 2021 I have a very basic question. For hot tubs to heat up, are they generally powered by gas? Or do they generally heat up by the circulation of the jets? Quote Link to comment Share on other sites More sharing options...
cranbiz Posted March 31, 2021 Report Share Posted March 31, 2021 Most have an electric heating element. Some more inexpensive brands use recovered heat from the pump. Some permanent/combination pool/spa types will use a boiler, which can be oil or gas fired and some tubs have a wood fired boiler. 2 Quote Link to comment Share on other sites More sharing options...
Greg T. Posted April 1, 2021 Author Report Share Posted April 1, 2021 Thank you cranbiz! I appreciate you letting me know. I definitely feel like I have a better working knowledge of it now. Quote Link to comment Share on other sites More sharing options...
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