Rinnai’s Sunmaster Flat Plate System 215L with 2 Collectors consists of a cost-effective ground mounted storage tank and highly efficient aluminium fin solar collectors. They can be installed separately and there’s no need to reinforce your roof for the collectors. A small pump circulates the water from the cylinder through to the collectors in order to absorb the maximum available solar energy. For average usage this system is suitable for 6 people or with high usage it is suitable for 4 people. Rinnai are a leading company in the solar industry and always design their products with the highest efficiency and environment in mind.