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Coates ST Series

Spa Heater


The ST Series heater features a built-in pressure switch to prevent operation when there is no water flow & allows flow rates between 15gpm & 80gpm.  The stainless steel tank is designed to optimize heat transfer by directing the water flow over the incoloy elements efficiently.

Standard Features:
  • Incoloy heating elements
  • Close differential thermostat
  • Manual reset hi-limit
  • Pressure switch
  • Element & flow switch "on" lights
  • Heavy duty contactors
  • 1.5" x 2" PVC union connections


Technical Data:
  • For 240 volt use only
  • 5,000 and 11,000 watt models
  • 1 Phase
  • 23 or 46 Amps
  • UL Listed for Indoor/Outdoor Installation
  • Dimensions:  18" x 4" x 15"

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Call 503.906.8118 or contact us online

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