Can I use a secondary return with the Greenspring water heater?

Yes, a recirculation system can be set up with the Greenspring water heater. With a circulation system the outlet water temperature is set at 60 - 65°c.

When setting up the recirculation system the circulation pump will need to be sized for the system. On sizing the pump you must ensure a minimum flow rate of 8 l/m when none of the outlets are in use and allow for a pressure drop of up to 1.5 bar through the water heater.

As this will now be a sealed system a safety valve and expansion vessel must be fitted.

Please refer to the Greenspring Tech and Spec for an example of a typical recirculation system.

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