
Intex Spa only outputs 102-104f and my beautiful fiancee prefers 108+. This heater increases the temperature at a rate of 3* per hour. ATTENTION! No thermostat [sold separately]. So set the alarm to go off manually or it could be catastrophic, I have no intention of finding out. As shown in the picture, I cut out a 2" piece of blue foam to float 4" off the ground. so there can be no damage.

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