Thinking of changing to my existing boiler to Combi. This is a three
> bedroom semi. Have been advised by plumber to install a Vaillant
> 28kw??? Also been quoted for £1250 to supply and install the boiler by
> same plumber. Dont't know much about boilers..so just wanted to know
> what people have and what they would recommend. Also what do you guys
> think of the quote.
Assuming you already have a properly designed storage system, 1250 quid installed won't give you a combi with anything like the flow rate of hot water you're used to.