Navien NHB-H Condensing Gas Boiler (Heat Only), 110,000 BTU

Navien NHB-110H is a high-efficiency condensing boiler designed to deliver dependable space heating in a compact form. It is well suited for medium-sized homes and small commercial spaces where performance, efficiency, and space savings are equally important.

Producing up to 110,000 BTU heating capacity, this natural gas boiler meets moderate to high heating demands with ease. Its condensing technology captures more heat from combustion, improving efficiency and lowering energy use. A modulating burner automatically adjusts output to match heating needs, maintaining steady comfort while reducing fuel consumption.

The boiler includes a 5-year parts warranty and a 15-year heat exchanger warranty. Financing options and extended labor coverage may also be available through authorized installers, providing added value and peace of mind.

With an efficiency rating of 95% AFUE, the NHB-80H reflects Navien’s focus on energy-saving innovation and long-term reliability. The unit’s small footprint allows for flexible installation, even in limited spaces. When properly installed and maintained, it typically lasts 15–20 years, with routine flushing and descaling recommended for optimal operation.

Features

• Advanced condensing gas boiler perfect for residential or commercial applications
• Available in four sizes to fit any home
• Smart Home compatible - stay connected with the optional NaviLink WiFi Remote Control System
• Proven Navien quality that is stood by - all units come with warranty
• Integrated control panel & control safety features, such as the integrated freeze protection
• Lower your energy bills and exhaust emissions with these modern high-efficiency boilers
• Compact, stylish, wall-hung designs - save up to 80% more space compared to a traditional floor-standing boilers
• Energy Star certified for 95% efficient (AFUE) operation
• Convertible from natural gas (NG) to liquid propane (LP)
• Turn-down ratios (TDR) up to 15:1 - create only as much heat as is needed
• Dual stainless steel heat exchangers that better resist corrosion, resulting in a longer-lasting and durable build

Downloads

• Brochure
• Installation & Operation Manual