cn400 slide2

Swimming Pool Heating

applications_swimming pool heating_w

Heat exchangers provide economical and efficient alternatives to direct fired pool heaters. We offer several types of pool heaters for heating swimming pools. Our CN Series pool heaters provide a simple method of heating salt water and chlorinated pools indirectly from a central heating boiler. Unlike conventional direct fired pool heaters which are inefficient consumers of natural gas or heating fuel with efficiencies ranging from 50 to 65%, central heating boilers operate with efficiencies in the 80 to 95% range. Therefore an additional benefit of using our pool heaters is that their use results in a significant reduction in natural gas consumption. We also offer a wide range of pool heaters constructed of stainless steel 316 and titanium.


What is indirect heating?

Indirect heating is a more comfortable alternative to forced air heating. Indirect heating utilizes a heat exchanger that derives heat from a conventional boiler, which are the most versatile heating appliances.

Unlike direct fired pool heaters, which require either gas or propane lines, our heat exchangers utilize hot water from a boiler to “indirectly” heat swimming pool water. The resulting efficiency of these systems is very high as we are able to take advantage of the efficiency of the boiler. Modern hot water boilers offer efficiencies over 80%, and in some cases, over 95%.


  • Allows home heating, driveway snowmelt, swimming pool heating and domestic water heating to be part of one consolidated system, leading to increased energy efficiency and limiting loss of waste heat
  • Apart from high efficiencies, there is added benefit of reduced wear and longer life for indirect heat exchangers, since reaction rates of chlorine or salt with heat exchangers, at typical boiler temperatures of 140˚F to 180˚F, are fairly low
  • Compatible with alternative energy sources such as solar and geothermal


Common applications
  • Recreation/resort pools/municipal pools
  • Geothermal heat pumps
  • Hospital/therapy pools
  • Aquaponics
  • Aquaculture/Pisciculture


Learn more about our pool heat exchangers: CN-series | SS-series