How efficient is the Navien NFB-H?

The Navien NFB-H operates at 95% AFUE (Annual Fuel Utilization Efficiency), meaning 95% of the fuel it consumes is converted directly into heat for your home. This is considered a high-efficiency boiler that can qualify for PSEG Long Island rebates.

How much does the Navien NFB-H cost to install?

The Navien NFB-H typically costs $3,500 - $6,000 for a complete installation in Nassau County, NY. This includes the boiler unit, professional installation by NATE-certified technicians, permits, and a standard warranty. Actual costs may vary based on your home's specific requirements, piping condition, and any necessary modifications.

Is the Navien NFB-H worth it?

With 95% AFUE efficiency, you can expect to save approximately $221 annually compared to an 80% efficient boiler. Key features like Heat-only condensing boiler and Dual stainless heat exchangers make it a compelling choice. It's particularly well-suited for larger homes with separate water heater already in place.

What is the warranty on the Navien NFB-H?

Navien provides a 5 years parts warranty and 15 years on the heat exchanger. For the best warranty protection, we recommend registering your boiler within 60 days of installation. Our installations include a workmanship guarantee on top of the manufacturer warranty.

How long does the Navien NFB-H last?

With proper maintenance, the Navien NFB-H should last 15-25 years or more. Premium-tier boilers like this one often exceed these expectations due to higher-quality components. We recommend annual tune-ups to maximize lifespan and maintain peak efficiency.

Does the Navien NFB-H qualify for PSEG Long Island rebates?

Yes! The Navien NFB-H with 95% AFUE qualifies for PSEG Long Island's efficiency rebates of $500-$1,000. We handle the rebate paperwork for all our Nassau County installations.

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Premium

Navien NFB-H

Model Number: NFB-H

View on Navien Website

Efficient heat-only condensing boiler for homes with existing water heaters.

95% AFUE

Condensing Boiler

60k - 150k BTU

Get Free Quote (516) 345-3911

Technical Specifications

Efficiency (AFUE)95%

Boiler Typecondensing

BTU Output Range60k - 150k BTU

PSEG Rebate EligibleYes ($500-$1,000)

Fuel TypeNatural Gas

Installed Price$3,500 - $6,000

*Prices include equipment, installation, and standard warranty. Actual cost may vary.

Estimated Annual Savings

Compared to an 80% efficient boiler

$221

per year

$4420

over 20 years

Get Your Custom Quote

Ideal For

Larger homes with separate water heater already in place

Expert Review: Navien NFB-H

The Navien NFB-H is Navien's dedicated heating boiler for larger Long Island homes. When the NCB-E combi isn't enough or you prefer a separate water heater, the NFB-H delivers the same condensing efficiency in a heating-only package.

When to Choose NFB-H Over NCB-E

The NFB-H makes sense for homes over 2,500 square feet or families with high simultaneous hot water demand (3+ showers). By separating heating from hot water production, each system can work at full capacity without compromising the other. Popular in Garden City, Manhasset, and Great Neck larger homes.

Performance Specifications

At 95% AFUE, the NFB-H matches the efficiency of the NCB-E combi. Modulating output from 15% to 100% provides precise temperature control across multiple zones. The stainless steel fire tube heat exchanger carries a 15-year limited warranty—among the best in the condensing category.

Sizing for Nassau County Homes

The NFB-H comes in models from 80,000 to 200,000 BTU, covering homes from 2,000 to 5,000+ square feet. We typically pair the 110,000-150,000 BTU models with tankless water heaters for optimal whole-home performance in larger Long Island residences.

Same Maintenance Requirements

Like all Navien condensing units, the NFB-H requires annual descaling due to Long Island's hard water. The same NaviLink Wi-Fi monitoring is available for remote system control. Surge protection remains essential for the sensitive control electronics.