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hot tub so i am not sure if the commercial hot tubs with the 220v service would do the same thing or if the bigger heaters would keep up better. in the summer we do not keep the tub as hot we keep it at 94 and we have stayed in for almost an hour at times and the tub ...
our standard hot tubs are heated by friction heat - when the motor is running it creates roughly 1kw of heat, combined from the friction created by the water rushing through the pump and plumbing provides adequate heating to increase the temperature by roughly 1°f per hour. residential ...