| Anotace | ČSN EN 15502-2-1+A1   This European Standard specifies, the requirements and test methods           concerning, in particular, the construction, safety, fitness for purpose, and rational use of       energy, as well as the classification and marking of gas-fired central heating boilers that are     fitted with atmospheric burners, fan assisted atmospheric burners or fully premixed burners, and    are hereafter referred to as "boilers".  Where the word boiler is used, it needs to be read as the  boiler including its connecting ducts, ducts and terminals, if any.  This European Standard covers  gas-fired central heating boilers from the types C1 up to C9 and the types B2, B3 and B5: |