L
LCV
The builder.
I believe the plumber designed the heating and hot water system as he is the most qualified person to do this - not 100% sure but it does not make sense for the builder to do it.
I said I wanted a boiler and a separate hot water cylinder due to the supply issue that I had with my combi. From my research I believe that combi-boilers are designed for flats rather than three/four storey houses. I said I wanted a Vaillant boiler as I hear they are one of the best.
I believe the plumber designed the heating and hot water system as he is the most qualified person to do this - not 100% sure but it does not make sense for the builder to do it.
I said I wanted a boiler and a separate hot water cylinder due to the supply issue that I had with my combi. From my research I believe that combi-boilers are designed for flats rather than three/four storey houses. I said I wanted a Vaillant boiler as I hear they are one of the best.