| Coates Electric Heater |
These medium capacity swimming pool heaters have a built-in flow switch to allow operation at water flow rates of 20 gpm to 80 gpm and to prevent operation when there is no water flow. Other standard features include incolony heating elements, close differential thermostat, manual reset hi-limit, element and flow switch "on" lights and internal protective fusing in units over 48 amps. When a pool is in frequent use, a heater to make up heat loss may be all that is needed. Use the following calculations to properly size the heater: Swimming Pool Heater Sizing:Surface Area of the Pool (sq. ft.) = length x widthDesired Pool Water Temperature: �FAverage Outdoor Air Temperature: during months in useTemperature Differential: Different between air and pool temperatures during the coldest month of use (desired pool temp. minus average air temp.)KW Required = Pool Surface Area x Temperature Differential x 12 240V,12KW,1 PHASE Price: 1572.19 |