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The Navien NHB-150H, installed by 4Most Energy, delivers 150,000 BTU/h of powerful, high-efficiency heating for large homes or buildings up to 4,000 sq ft. Ideal for multi-zone radiant, baseboard, or air-handler systems, it also supports an indirect tank up to 70 gallons for domestic hot water.
Installed by 4Most Energy — 150,000 BTU Heating • High-Efficiency Condensing Boiler
The Navien NHB-150H is a premium high-efficiency heat-only condensing boiler designed for larger homes and light-commercial applications requiring powerful, consistent heating. Professionally installed and serviced by 4Most Energy, this boiler offers exceptional comfort, energy efficiency, and flexibility for advanced multi-zone systems.
With 150,000 BTU/h of heating output and up to 95 % AFUE efficiency, the NHB-150H provides reliable hydronic heat for radiant in-floor systems, radiators, baseboards, and air-handlers — all within a compact, wall-mounted design.
95 % AFUE condensing efficiency for lower gas bills
Stainless-steel heat exchanger for durability and corrosion resistance
Smart modulating burner ensures stable, quiet heating in all load conditions
Ideal for multi-zone systems or larger homes with multiple heating zones
Wi-Fi compatible (NaviLink™) for remote monitoring and control
Compatible with indirect tanks (50–70 gallons) for integrated hot water supply
Perfect for large homes or light-commercial buildings up to ~4,000 sq ft
Handles multi-zone heating systems, hydronic radiant, and air-handler setups
Can be connected to an indirect water tank (50–70 gallons) for domestic hot water
Ideal for properties that require both high capacity and energy-efficient performance
