I suppose it could be worse. I could get a Jack-of-all-trades, master of none to do it, that doesn’t know the difference between a combi boiler and a system boiler.
As you highlighted it "SYSTEM BOILER". Then you know what i'm installing.
Since when has there been a mains cold water feed...
I was wondering how long it would be before id receive a sarcastic remark. All I need now is someone to mention the competent word. Why can no one answer a simple question?
Kevplumb, answer me this. Are you a plumber?
Where is the correct postion to fit the DCV/Valves for the filling loop? I'm getting materials sorted out to upgrade my heating system. I will be fitting a vaillant 615 system boiler and vaillant unistor 155 unvented cylinder.
I know that one side has to connect to the return pipe of the...