Solar heaters suppliers. Zhejiang Tianshile New Energy Co.,Ltd.is one of the leading companies of solar heaters (solar water heaters), all-glass vacuum tube, air heat pump water heaters. Most of them are exported to Europe, America, Southeast Asia, Africa etc.Country and Region. In 2003, the company implemented ISO9001:2000 Standard Quality Management System and in 2006, it passed the national mandatory CCC certification and EU CE certification.