The integrated control provides industry leading options and features in the boiler operation parameters, including:
Adjustable heat capacity.
A timed hydronic supply water boost feature.
Adjustable anti-cycle timer.
Freeze protection.
Pressure LWCO with manual reset.
Adjustable minimum burner time setting.
Adjustable turndown ratio timing.
Outdoor reset and domestic hot water priority.
Adjustable outdoor temperature reset curves.
Field gas convertible.
NHB-55Max HTG Input: 55,000 BTU/HIndoor wall-hungResidential/CommercialSee this model
NHB-80Max HTG Input: 80,000 BTU/HIndoor wall-hungResidential/CommercialSee this model
NHB-110Max HTG Input: 110,000 BTU/HIndoor wall-hungResidential/CommercialSee this model
NHB-150Max HTG Input: 150,000 BTU/HIndoor wall-hungResidential/CommercialSee this model
NFB Series
HIGH-EFFICIENCY CONDENSING HEATING BOILER
Patented stainless steel heat exchanger —eliminates high-stress point welds.
Advanced user interface and controls with intuitive text display, simplifies boiler setup.
Built-in hardware to connect a boiler system pump, 3 zone pumps or 3 zone valves.
Optional NaviLink Wi-Fi remote control.
Cascading and common venting capable.
10:1 Turn Down Ratio.
AFUE 95.0% — Energy Star 2018 most efficient rating.
NFB-175Max HTG Input: 175,000 BTU/HIndoor wall-hungResidential/CommercialSee this model
NFB-200Max HTG Input: 199,900 BTU/HIndoor wall-hungResidential/CommercialSee this model
NFB-C Series
COMMERCIAL FIRE TUBE BOILERS
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 fexible venting options.
Lower operating costs with the industry’s leading thermal effciency at TE 97.5%... 2019 Energy Star most effcient
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.
NFB-301CMax HTG Input: 301,000 BTU/HIndoor wall-hungResidential/CommercialSee this model
NFB-399CMax HTG Input: 399,000 BTU/HIndoor wall-hungResidential/CommercialSee this model
