NFB‑C Commercial Condensing High-Efficiency Boiler

Navien’s high efficiency fire tube condensing technology make NFB-C hard to beat and the easy choice for today’s commercial boiler applications

Navien does it all from start to finish...making NFB-C the total package

Robotic and automated manufacturing technology for unmatched quality control.
In-house designed and built components, for system matched compatibility...unlike most competitors who use the same out-sourced parts to build their boilers.
Lower installation costs with our innovative engineered compact wall hung design, intuitive controls, top or bottom piping connections and flexible venting options.
Lower operating costs with the industry’s leading thermal efficiency at TE 97.5%...
Energy Star approved
Cascading and common venting capable.
Best-in-class training and technical support.
One of the industry’s best warranties.
Top and bottom piping connections for either floor or wall installations.
BMS connectivity (Modbus, BACnet and LonWorks).
High altitude installations up to 10,100 ft.

사양

NFB-C Models:
- NFB-301C
- NFB-399C
Model NFB-301C Specs
- Heating Capacity 20,000-301,000 BTU/H
- Thermal Efficiency (or UEF) 0.98
- Installation Type Indoor wall-hung
- Width 25.1"
- Height 32.8"
- Depth 22.3"
- Weight 243 lb.
- Water Pressure Min 12 psi
- Water Pressure Max 160 psi
- Cold Water Inlet Connection Size 1 1/4"
- Gas Supply Connection Type NPT
- Gas Supply Connection Size 3/4"
- Voltage 120 V
- Venting Type Forced draft direct vent and non-direct vent (single pipe)
Model NFB-399C Specs
- Heating Capacity 26,000-399,000 BTU/H
- Thermal Efficiency (or UEF) 0.98
- Installation Type Indoor wall-hung
- Width 25.1"
- Height 32.8"
- Depth 22.3"
- Weight 278 lb.
- Water Pressure Min 12 psi
- Water Pressure Max 160 psi
- Cold Water Inlet Connection Size 1 1/2"
- Gas Supply Connection Type NPT
- Gas Supply Connection Size 3/4"
- Voltage 120 V
- Venting Type Forced draft direct vent and non-direct vent (single pipe)

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