Why the Simple Drainback System?

Low Maintenance. Standard Solar Hot Water Systems require regular maintenance. For the Simple Drainback System all you have to do is feel the tank once in awhile on a hot sunny day to make sure it is warm. Because our Simple Drainback System uses water for the solar fluid and is sealed from atmosphere, there is virtually no need for maintenance. Pressurized Glycol systems require regular maintenance to check that the acidity level in the Glycol has not reached the point at which the copper pipes and collectors will start to erode.

Our system will also work in freezing climates without failure. Correctly installed collectors and plumbing will guarantee that the water drains back completely. Our SHEM32 controller is set to prevent the pump from activating when the temperature in the collector drops below 50°F. This provides an additional measure of protection against freezing. Our controller is also passcode protected to prevent accidental adjustments of the temperature settings.