Hello there,
I had three quotes to have a combination "Condensing" boiler fitter. First two looked it and said fine and provided price. However, the last guy and the one who I liked most said I cannot have a combination condensing boiler as I have a cast iron waste pipe which is shared with the whole flat (I am on top floor of three story flat). He said the high acidic content will rot the sewage pipe and I am not allowed.
No one else mentioned this! Even the inspector (it is an ex authority property) who visited for other aspects did not mention this (although he was not particular an expert).
Looked on the internet and cannot find any mention of this. Anyone else heard this?
Kind regards Dave