Scaled up DHW Heat Exchangers

[idunno]

I have been experiencing poor DHW temperature recently, and have been told that I need a new DHW heat exchanger as it is scaled up.

But the scale (apparently) is on the DHW side of the exchanger and not the CH side ( I do live in a hard water area). The CH appears to be working fine.

Obviously I don't want to fork out for a new exchanger if all I need to do is de-scale it but I wonder if it is actually possible or likely that it has scaled up on one side only?

Even if it has do I need a new one or can I just de-scale it?

 

[frenchie1]

take it off n soak it in a mild acidic solution, get a anti scale device fitted as well

 

[idunno]

Thanks, I'll give that a try first.

 

[ChrisR]

What boiler!!!!!!!!!!!!!!!!!!!!!

 

[kevplumb]

 

[wilhelm]

sid james type laugh

 

[kevplumb]

e me lost all my contact's

 

[idunno]

OOps - should have said that part first.

It's a Biasi 28S combi