General Solar Thermal Systems Information
I Am Installing A Drainback Solar Thermal System How Do I Facilitate Proper Drainback?
I am installing a drainback solar thermal system how do I facilitate proper drainback? In order for your system to "drainback" when the pump shuts off your collectors and piping must be sloped at 1/4" per 12" of run. Be aware that visually your collectors will not be parallel with your roof ridge.