Two Bradford White eF Series high-efficiency commercial water heaters were installed and connected as a balanced dual-unit system. The work included new copper water lines, insulated hot-water piping, individual isolation valves, an expansion tank, upgraded PVC intake and exhaust venting, drainage connections, and earthquake safety straps.
Both water heaters were started, tested, and balanced to work together efficiently. The completed system now provides reliable hot water, increased capacity, and easier servicing because either unit can be isolated when necessary.