[quote="toneyt"]this is a mean job if you are referring to the domestic plate heat exchanger,you are sure its the heat exchanger thats gone what symptoms are you having?[/quote]
worcester bosch highflow 400 problem with radiators being on intermittently even when radiator thermostat is turned completely off! also hot water not as fast as it used to be,could it be heat exchanger and if so what is the best way to descale it? anyones help would be appreciated thanks.
