View Single Post
  #7   Report Post  
IMM
 
Posts: n/a
Default


"raden" wrote in message
...
In message , Richard
writes
How do I descale the heat exchanger on my gas fired central heating

system.

If it's badly scaled up, you need a descaling pump and the appropriate
chemical (see the Fernox or Kamco websites)

As it happens ... I have a descaling pump, I'm in Watford


Maxie, how much do these cost to buy?