CN-SS Series Stainless Steel Pool Heat Exchangers

The use of external sources of heat as a means of swimming pool heating has increased significantly over the past decade. Indirect pool heating is also become increasingly popular and is growing with alternative heating applications such as hydronic heating, solar thermal, geothermal and biomass heating. These alternative heating applications are energy efficient and will to grow in popularity due to rising energy prices.

In recent years there has been considerable growth in the popularity of saltwater pools. In certain areas of North America saltwater pools
account for over 80% of all new installations.

Bowman CNSS Series Stainless Steel Pool Heat Exchangers are ideal for heating chlorinated and bromine pools.

The units are also widely used in the rapidly growing freshwater aquaculture and aquaponics applications.

These units are designed to handle the large flow rates created by pool pumps with minimal pressure loss. The Bowman CNSS Series Stainless Steel series is available in 200,000 and 400,000 Btu/hr capacities.


  • High Efficiency
  • Compact Design
  • Sturdy Construction
  • Removable Tubestacks
  • Quick Delivery from Stock


  • Pools, Spas, and Hot Tubs
  • Domestic Hot Water
  • Sea Water Applications
  • Waste Water Heat Recovery
  • Freshwater Aquaculture
  • Aquaponics

Standard Material:

Tube side (Pool Water): SS316L
Shell Side (Boiler Water) Bronze or
Cast Iron

Maximum Pressure:

Hot Side: 6 barg (87psig)
Cold Side: 6 barg (87psig)

Maximum Temperature:

100 Deg. C

CNSS200P 200,000 BTU/Hr*
CNSS400P 400,000 BTU/Hr*
Quick Sizing Reference **
CNSS200P – for pools up to 23,000 US Gallons*
CNSS400P– for pools up to 46,000 US Gallons*
* Based on boiler water temperature at 180°F
** Based on pool temperature at 84°F

Other Models Available  
CN650 650,000 BTU/Hr
CN1000 1,000,000 BTU/Hr
CN1500 1,500,000 BTU/Hr
Call for sizing recommendations  

cnssp pool heaters
cnssp pool heaters1

Horizontal Installation Vertical Installation

Download the CN-SS Brochure