Coates has been the name to trust for quality and reliability in water heating equipment since the 1940's and continues to lead the industry in quality and perfomance across our entire line of swimming pool products.

The pool and spa heaters are available from 1.5kW to 57kW and most can be ordered in single or three phase models. For large commercial applications we also offer heaters up to 300kW.

Please refer to the Sizing Guide for help choosing the correct heater for your application.
ILS Series  
  1.5kW to 5.5kW
Residential spas less than 400 gallons.
ST Series  
  5.5kW to 11kW
Residential spas between 250 and 600 gallons.
CE Series  
  12kW to 18kW
Large spas or small residential pools.
TR Series  
  12kW to 18kW
Small salt pools and spas up to 3500 ppm.
CPH Series  
  24kW to 30kW
Residential pools and small indoor commercial pools.
PHS Series  
  36kW to 57kW
Large pools and cold weather applications.
PHS-CN Series  
  24kW to 57kW
Large salt pools and spas up to 3500 ppm.
PHS-20 Series  
  180kW to 300kW
For commercial applications which require 180kW - 300kW.

NOTE: Our standard stainless steel pool heaters are not recommended for the highly corrosive environment created by salt chlorine generators. Please use the PHS-CN series to ensure you experience the quality and reliability you expect from Coates products.