Pre-heated solar water heater can be seen as pressurized model, although the water tank of pre-heated solar water heater usually is non-pressurized tank, but inside tank there is a copper coil which can bear pressure, and the water for use is from the copper coil, however the water in tank is only use to transfer heat to the water in copper coil.
Pre-heated solar water heater, when tap water inlet opens, the cold water begins to circulate inside the copper coil, water will heat up to the equal temperature with the water in tank, and travel through the hot water pipe and mix with cold water in the shower mixer or sink. In this way, the water used for consumption is fresh water that has just been heated.\\
Zhejiang Babysun New Energy Technology Co., Ltd.
P.C.: 314415
Cell Phone: +86 18858307787
Tel/Fax: 0086-573-87501648
E-mail: sales@babysunsolar.com
Whatsapp/Wechat: +86-18858307787
Facebook: babysunsolar
Address: No.4 Factory, No.16 Jinshi Road, Jianshan New District, Haining, Jiaxing City, Zhejiang Province, China