Advice needed. I have a 12 year old domestic oil boiler serviced and maintained under a contract for breakdowns. For the last 3 years the service engineer has mentioned that I should consider a new boiler as the current one is obsolete ( Wall hung Trianco Eurostar 50/70) and parts are difficult to obtain. However the current boiler has only broken down twice in 12 years and runs well. I have been quoted £3650 for a new boiler (retailing for £1600) to slot into my existing system. Any heating engineers out there who could advise as to whether a) the price seems reasonable and as the boiler currently runs well, there is no corrosion and the last repair about 2 years ago was undertaken presumably with a generic part I should delay this. Many thanks.