Navien NCB-240/130H High-Efficiency Condensing Combi-Boiler

Navien NCB-240/130H High-Efficiency Condensing Combi-Boiler

The Navien NCB-240/130H is a high-efficiency condensing combi-boiler that delivers both space heating and domestic hot water from a single compact unit. Designed for residential and light commercial applications, the NCB-240/130H offers advanced controls, flexible installation, and outstanding performance.

Featuring dual stainless steel heat exchangers and advanced modulation, this combi-boiler provides reliable heating efficiency while delivering on-demand domestic hot water.

Key Features

• High-efficiency condensing combi-boiler
• Advanced stainless steel dual heat exchangers
• 15:1 DHW turndown ratio and up to 10:1 heating TDR
• Field-convertible gas system (Natural Gas / LP)
• Operates at altitudes up to 10,100 ft
• Smart controls with LCD display, quick dial wheel, and setup wizard

Heating & System Capabilities

• Built-in 3-zone pumps
• Built-in 3-zone valve power connections
• Capable of cascading up to 15 Navien units
• Capable of common venting up to 7 Navien units

Venting Specifications

• 2" venting up to 65 ft
• 3" venting up to 150 ft

Typical Applications

• Residential space heating and domestic hot water
• Large homes and multi-bathroom residences
• Light commercial heating applications
• Replacement for traditional boiler + water heater systems

Certifications

• ENERGY STAR® Certified
• NSF Certified
• AHRI Certified

What’s Included

• Navien NCB-240/130H Condensing Combi-Boiler

Installation Note: Professional installation required. Follow Navien installation guidelines and all local codes.