Applying cellular technology and heat pipe technology in flat plat solar water heater can greatly reduce heat losing and enhance average daily coefficient.
把蜂窝技术和热管技术结合起来应用于平板式太阳能热水器，可以大大减少热损失，提高日平均效率。
2
The kind of heater enlaces the resistance heating wire around the isinglass board (flat).
云母板(片)加热器是将电阻发热丝缠绕在云母(片)上的一种电加热器件。
3
Solar water heater is renewable energy sources product which widely used in China. It can be devided into vacuum tube solar water heater and flat panel solar water heater.