EVENTS & HOLIDAYS
EXCLUSIVE OFFERS
- Connection Type: NPT
- Fuel Type: Liquid Propane / Natural Gas
- Housing Material: Cold Rolled Carbon Steel
- Ignition Type: Electronic
- Input Capacity: 399,000 BTU/hr
- Type: High-Efficiency
- Vent Type: Forced Draft Direct and Non-Direct (single pipe)
- AFUE Rating: 97.5%
- Boiler Weight With Water: 371 lb
- Dimensions: 21.5 in W x 22.3 in D x 32.8 in H
- Manufacturer: NAVIEN INC
- Manufacturer #: NFB-399C
- Mounting Type: Wall
- Series: NFB-C
- Vent Size: 3 or 4 in
Navien’s high efficiency fire tube condensing technology make NFB-C hard to beat and the easy choice for today’s commercial boiler applications
NFB-399C 97.5% COND COMM FIRE TUBE BOILER
NFB-399C 97.5% COND COMM FIRE TUBE BOILER
- 2023 Navien US Product Catalog.pdf(Catalog)
- KD_Navien_NFB301C_Specification_Sheet.pdf(Specification Sheet)
- NFB-301C_399C_User's_Information_Manual_190805.pdf(Owners/User Manual)
- NFB-C Brochure 2207.pdf(Brochure)
- NFB-C Installation and Operation Manual English 201124.pdf(Instruction/Installation Manual)
- Features
- Includes
- 97.5% TE Industry Leading Thermal Efficiency
- Patented stainless steel fire tube heat exchanger
- 161 PSI maximum operating pressure
- Advanced controls with intuitive 7" color display
- Up to 15:1 TDR (turndown ratio)
- BAS communication capability
- Common vent up to 4 and cascade up to 32 units
- Top and bottom piping
(2) 3" Vent termination caps, (4) 3" in wall flanges, Air vent, Wall mounting bracket, (4) Tapping screws & anchors, 50 psi Pressure relief valve heating, NG/LP Conversion kit, Outdoor temperature sensor & cable, PRV-Air vent adapter (including clip), Condensate trap, System temperature sensor, Air vent bushing (1-1/4 to 3/4"), Caps with gaskets and Double nipple (3/4 to 3/4")