根据供风方式，该装置有强制送风和自然送风两种。
Acording to air supply mode, the device has forced air supply and natural air supply.
系统包括强制送风的风路系统或加热流体的管路系统，通过散热器传给空气。
The system also contains either ductwork, for forced air systems, or piping to distribute a heated fluid and radiators to transfer this heat to the air.
供暖锅炉。第1部分：带强制送风燃烧器的供暖锅炉。术语一般要求试验和标记。
Heating boilers. part 1: heating boilers with forced draught burners. terminology, general requirements, testing and marking.
供暖锅炉。第3部分：燃烧气体的集中供暖锅炉。锅炉和强制送风燃烧器组合设备。
Heating boilers. part 3: gas - fired central heating boilers. assembly comprising a boiler and a forced draught burner.
强制送风系统通过风管送热风，热天风管也可用于空调强制送风也可过滤或连接空气净化器。
Forced air systems send heated air through ductwork. During warm weather the same ductwork can be used for air conditioning. The forced air can also be filtered or put through air cleaners.
加热采强制循环送风方式，温度上升快速，分布均匀。
Heating is by compulsory circulating ventilation, temperature raising is fast and spread even.
加热采强制循环送风方式，温度上升快速，分布均匀。
Heating is by compulsory circulating ventilation, temperature raising is fast and spread even.
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