Drainback Solar Hot Water
Drainback Solar Hot Water Systems are one of the most popular system designs for Solar Hot Water Systems used today. These systems are easy to operate and maintain, and provide adequate freeze protection in a variety of climates without the need and added expense of glycol.
Drainback Solar Hot Water Systems incorporate a drainback tank into the system, which allows the Solar Collectors to empty of water (or HTF) in case of cold weather or system shutdown, protecting the lines on the outside of the building (to and from the Solar Collector(s)) from freezing and causing damage to the system.
