I had a government scheme eco boiler fitted last year which went wrong this morning, had to pay £300 for an engineer to fix the problem who went on to tell me that the pipework hadn't been changed correctly to accommodate the new fully pumped system from the old gravity system and to complain to british gas. before I do i was wondering if anyone could give me more information on what should have actually have been done regarding the pipe work, as they did not touch any pipe work at all in the airing cupboard or loft. thankyou