I recently obtained a quote to have a Vokera Unica combi installed. I accepted the quote and had the work done whilst I was at work. When I got home the boiler turned out to be a Sabre 28 HE. After some investigation the Sabre and the Vokera seem similar (if not identical). Whilst it is clearly not right that the boiler I asked for has not been installed, would I be cutting off my nose to spite my face having the installer change the boiler? Thanks.