We're having some problems with our boiler. An engineer assessed it and said we'd be better off getting a new boiler rather than fixing the existing boiler.
The problem is he says when having a new boiler, we'd have to have a new flue installed. He says he has to have access to the flue from the outside when installing it. As we're in a flat which is too high up for a ladder, we'd need to get scaffolding, which is going to be expensive.
So I have two questions: 1) Do we have to have a new flue when getting a new boiler? 2) Can a flue be installed when only accessing it from inside the property?
I am wondering about getting a second opinion about the flue installation.