... to provide strong water flow for shower 2. This type doesn’t need any controller, circulation pump, expansion pump ... electricity saving. Integrated Pressurized Solar Water Heater –Stainless Steel Type Technical Parameters & specification Integrated Pressurized Solar Water Heater ... / Stainless steel/aluminium alloyBracket angle:0, 18,22,38,45 optional, pitched roof, flat roof optional.Fastening pieces ...