Solar water heating system is insulated with high density polyurethane with a thickness of 50 mm. It has the lowest coefficient of temperature loss and, in addition, the polyurethane provides a very good mechanical resistance to the solar water heating system because in the polymerization process it is bonded to the walls. Practically in the case of an unpressurized solar water heating system we have 2 tanks (one external and one internal) isolated by a layer of polyurethane foam presented above. During the night the insulation will maintain the temperature in the boiler, which will drop only 5-7celsius degrees.
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