BMS connectivity (Modbus, BACnet and LonWorks).
High altitude installations up to 10,100 ft.
Click here to see what the NFB-C comes with
Navien’s ASME-certified, “H” stamped stainless steel fire tube heat exchangers are in-house designed and built by the latest in robotic and automated technology, reducing high stress point weld failures common on other boilers.
Navien’s advanced patented stainless steel heat exchanger design is ASME‑Certified, “H” Stamped, and reduces high stress point weld failures common on other boilers. This compact, in‑house designed and manufactured heat exchanger uses the latest automated laser welding technology to deliver superior product quality.
Easy intuitive navigation for setup,
troubleshooting and operation.
Download boiler data and settings.
Upload software updates and boiler settings.
All integrated into the NFB-C circuit board. Also includes a DHW priority zone.
With Navien cascading technology, when a boiler gets up to 80% of its capacity the next unit will start to help meet the heating system requirements.
This boiler sequencing will continue until the heating load is fully satisfied. The Navien cascading system also balances out the run hours of each boiler for longer life.