PHS-24 24KW Circulation Water Heater Thermostat for Swimming Pools & Bathtubs

Overview: The PHS-24 24KW thermostat is a circulation-type water heater designed to maintain water temperature in swimming pools, bathtubs and spas. Sizing guideline: 1 cubic water with 2KW; in cold climate place: 1 cubic with 3KW — please choose the model depending on this. Pump requirement: This unit heats by circulation, so a circulation pump is required (pump not included). Key features: digital temperature display; heating element resistant to scale and chlorine corrosion; sensitive flow switch; mute contactors for quiet operation; time-lapse starting; electrical over-current protection; and over-temperature safety. Applications: Ideal for circulation systems in hot baths, spas and swimming pools to保持 stable water temperature.