I have an on-demand or instant hot water recirculating system. Will the EcoDrain work with it?
The EcoDrain should work with most on-demand or instant hot water systems provided that it is installed properly. The EcoDrain is designed to preheat cold water leading either to a shower mixing valve or to the water heater. An on-demand system is designed to recirculate hot water in the hot water circuit. The two operate on different circuits and should not interfere with each other.