Solar Water Heater project's characters More Suitable Choose suitable collector heaters according to different latitude. Adequate for Most Occasions From a family to a factory, from tens, hundreds to thousands, you may choose our products. It is widely used in a hotel, school, army or factory. More Automatic Automatic supplying water, electric heat, recycling and protection. Practical Invest only once, benefit forever. Environment and saving No harm, no pollution, economical and clean. Features: 1) Designed for commercial solar water heating applications 2) Reliable, efficient, twin-glass solar tubes 3) Polyurethane insulation ensures good heating performance and minimal heat loss 4) Manifold cover's material: stainless steel or galvanized sheet 5) Frame material: Alloy steel coated with titanium 6) Easy plug-in installation 7) Can be connected in series to increase water heating capacity