Coil Heat Exchanger

The Cotswold coil heat exchanger is, essentially, a dairy water heater, without control box and element but incorporating one or two seamless 22mm stainless steel coils, depending on size and customer requirements. It is available in sizes from 40 to 240 gallons.

  • The unit can recover heat from refrigeration units, heat pumps or solar panels, giving water temperatures of 45°C or more depending on the situation. This water can then be transferred into a standard water heater to be boosted up to the correct temperature for plant or bulk tank washing.
  • Transfer can be by gravity, utilising a timer controlled solenoid valve, or where the main water heater is at the same level, or higher than the heat exchanger, by a timer controlled water pump.
  • These units can give considerable savings on electricity costs, by utilising otherwise wasted heat on the farm.
  • As the main body of the heat exchanger is basically the same as a standard water heater, the cost can be kept low, compared to others on the market, making it a very cost effective option.

Click the table or the schematic diagram on the right for more detailed information on  savings and installation.


Product Details

Available in sizes from 40 gallons(135 litres) to 240 gallons(1080 litres)
Coil Heat Exchanger variants
Part Number Part Description Delivery Retail Price
HS40 40 gallons/180 litres, 24" x 24" x 36"/610mm x 610mm x 915mm £50.00 £1545.00
HS50 50 gallons/225 litres, 24" x 24" x 42"/610mm x 610mm x 1067mm £50.00 £1680.00
HS60 60 gallons/270 litres, 24" x 24" x48"/610mm x 610mm x 1220mm £60.00 £1820.00
HS70 70 gallons/315 litres, 27" x 27" x 43"/686mm x 686mm x 1093mm £60.00 £1932.00
HS80 80 gallons/360 litres, 27" x 27" x 48"/686mm x 686mm x 1220mm £65.00 £2270.00
HS100 100 gallons/450 litres, 32" x 32" x 45"/813mm x 813mm x 1143mm £80.00 £2455.00
HS120 120 gallons/540 litres, 32'' x 32'' x 50''/813mm x 813mm x1270mm £80.00 £2680.00
HS150 150 gallons/675 litres, 38'' x 38'' x 50''/966mm x 966mm x 1270mm £80.00 £2795.00
HS200 200 gallons/900 litres, 47'' x 40'' x 50/1194mm x 1016mm x 1270mm £100.00 £3440.00
HS240 240 gallons/1080 litres, 56'' x 40'' x 50''/1423mm x 1016mm x 1270mm £POA £3930.00