The Duraco Solar Water Heater is a cutting-edge, precision-crafted solution that will improve your energy efficiency. The hot water tank is made of superior stainless steel 316, which ensures longevity and excellent performance. Embracing the latest thermal technology, whether Vacuum Tubes or Heat Pipes, this solar water heater maximizes heat absorption for unparalleled efficiency. Enjoy peace of mind with an extensive 15-year guarantee on manifolds and tubes, an 8-year guarantee on the tank, and a 1-year guarantee on the assistant tank. Choose Duraco for sustainable warmth and reliability that stand the test of time.