AET Solar water heating solutions can be designed effectively to provide for 70%-90% of commercial water heating needs. These commercial systems provide hot water for domestic use, space heating and pre-heats to boilers. All our systems come with back up heating capabilities. Solar Water Heating Systems are very effective in facilities such as hospitals, dorms, hotels and nursing facilities where they experience constant hot water demands. In addition, schools, commercial offices and restaurants with intermittent water heating loads reap substantial benefits.