I just want to update. I heard the design code BS 2790 firetube boiler was replaced with BS EN12953. How about the design code BS 1113 for watertube boiler, any replacement?
This British Standard is the official English language version of EN 12952-1:2001. It
partially supersedes BS 1113:1999 which will be withdrawn when Parts 1, 2, 3, 5, 6, 7,
10 and 11 of BS EN 12952 are all published.