Can WesTech solar collectors be used in a drainback configuration?
Yes. The end port version of the WesTech solar collector is well suited to drainback use. The question is often asked if the solar collector will be damanged when the pump turns off and the system stagnates in good sun – no it won’t, as the collectors is designed to withstand stagnation. What must be considered though is the insulation used on the piping close to the collectors, as this must be able to withstand stagnation tempertures.
