The heater is generally used on 4% of the average annual pump runtime, so the remaining 96% of the water flow can be diverted and bypass the heat exchanger in order to save electrical costs and extend the heat exchanger’s lifetime.

The VersaFlo Integrated Bypass for JXi heaters offers:
Up to 20% additional energy savings (versus a similar system without VersaFlo)
Automation actuation of flow bypass valve is based on call for heat
No external plumbing modifications are needed
Compatible with JXi models, not compatible with JXi ASME models