Profile: ZHEJIANG SIDITE NEW ENERGY CO.,LTD. specializes in solar hot water heater solutions. The split solar water heating is an active system, because it uses a pump with a controller to circulate the fluid between the heat pipe series solar collector and the storage tank. The tank & solar collector are separate, while the collector is integrated on to the roof of the building, the tank & the pump station can be installed anywhere in the building. We are accredited with ISO 9001:2000 quality systems.