All About Solar Thermal Home Heating Systems

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.