The Sunmaster Flat Plate System 320L with 1 Collector consists of a ground mounted storage tank that is installed separately to the highly efficient aluminium fin solar collectors. The collectors are mounted on your roof but don’t worry, there’s no need to reinforce your roof structure and they have minimal impact on the aesthetics of your roofline. Rinnai have been a trusted brand for over 45 years who design their products with innovative and durable technology.