In this video, we will explain how to operate a Pentair MasterTemp pool heater.

 Like your home furnace, a pool heater will continue to run until it reaches the set temperature.


  • Turn on the heater by pressing the “Pool ON”.
  • The number displayed is the current temperature of the water.
  • If the heater is working you should feel hot air blowing from the exhaust. (Caution! Can be very hot)
  • Pool heaters will continue to run until the water has reached the set temperature
  • MasterTemp heaters have a “Spa ON” and “Pool ON” button. This gives the heater the ability to remember two temperature settings.

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