Heating boilers - part 6 : heating boilers with forced draught burners - specific requirements for the domestic hot water operation of combination boilers with atomizing oil burners of nominal heat input not exceeding 70 kw 供暖锅炉.第6部分:带有强制通风燃烧器的供暖锅炉.带有公称热输入功率不超过70kv的自动燃油燃烧器的组合锅炉家用热水供暖操作的特定要求