With the initial dose, its key to make sure the system water is circulated properly so that the inhibitor is sufficiently mixed. Fernox recommend that you let the system circulate for at least 15 minutes. Also having the system on hot will help speed this up.
When I dose with Boiler Noise Silencer F2, do I also need to use a Fernox Protector?
Yes, Fernox Boiler Noise Silencer F2 is designed for use with any Fernox Protector. It should be left permanently in the system with Protector F1 or Protector + Filter Fluid and replaced or topped up at the same time.



















