A unique solution from A.O. Smith is revolutionising the use of solar thermal panels for hot water production.The high performance system consists of solar thermal panels feeding into an SGE or SGS condensing gas water heater, with an intelligent control system to optimise energy use and minimise energy costs. Each of the system elements communicate directly resulting in up to 40% solar contribution. For example, if solar input is low the pump speed can be modulated down to 15% of nominal speed, maximising the free energy available from the sun.