Can anyone tell me if there is a correct way to return water to the boiler? i.e. does the domestic hot water return go into the central heating return or the other way round?
The reason i ask is my house has the central heating completely on 15mm and the domestic hotwater on 22mm.
Would there be a right or wrong way?
The reason i ask is my house has the central heating completely on 15mm and the domestic hotwater on 22mm.
Would there be a right or wrong way?