Is there a risk of clogging within the polypropylene heat exchanger over time?

No. Clogging occurs by metallic corrosion. The material of the DualSun heat exchanger is a polymer and will not be affected, but other elements of the circuit could be affected:

The pressure of the circuit will tend to force out oxygen by diffusion through the polymer lining, nonetheless we recommend to:

  • make sure to degas the system correctly during commissioning,
  • use systematically demineralised water and an anti-corrosion glycol (TYFOCOR) during filling of the closed circuit.