The energy efficiency rating system for boilers is called sedbuk (seasonal efficiency of domestic boilers in the uk) all boilers are assessed and given a rating to help you pick a boiler that is energy-efficient, or see how efficient your existing boiler is. To book a boiler service, you can now do this in 2 ways. Sign up for the hgtv inspiration newsletter. A biofuel boiler plant for uab lerenta is set to open.