Navien NCB-240/110H Condensing Combi-Boiler - 199,900 BTU DHW / 110,000 BTU HTG

Navien NCB-240/110H Condensing Combi-Boiler - 199,900 BTU DHW / 110,000 BTU HTG

The Navien NCB-240/110H is a high-efficiency condensing combi-boiler engineered to provide both hydronic space heating and continuous domestic hot water from one compact wall-hung unit. Designed for residential and light commercial applications, the NCB-240/110H delivers reliable performance, advanced controls, and excellent energy efficiency.

With up to 199,900 BTU domestic hot water input and 110,000 BTU heating input, this combi-boiler is ideal for homes requiring dependable heating and strong hot water output while saving valuable installation space.

Key Features

• High-efficiency condensing combi-boiler
• Provides both space heating and domestic hot water
• Up to 95% AFUE efficiency
• 199,900 BTU DHW input
• 110,000 BTU heating input
• Dual stainless steel heat exchangers
• Advanced burner system with wide turndown ratio
• Natural Gas / Liquid Propane convertible
• Compact wall-hung design saves space
• Built-in controls with intuitive LCD display
• Low NOx emissions
• Energy Star certified

Domestic Hot Water Performance

• Up to 10.4 GPM at 35°F temperature rise
• Up to 7.9 GPM at 45°F temperature rise
• Up to 5.1 GPM at 70°F temperature rise
• Continuous on-demand hot water delivery

Heating & System Capabilities

• Supports hydronic heating applications
• Built-in zone control capabilities
• Compatible with baseboard, radiant floor, and air handler systems
• Outdoor reset control capability
• Operates at altitudes up to 10,100 ft
• Common venting capability available

Product Specifications

• Model: NCB-240/110H
• Product Type: Condensing Combi-Boiler
• Installation Type: Indoor Wall-Hung
• Fuel Type: Natural Gas / Liquid Propane
• Max DHW Input: 199,900 BTU
• Max Heating Input: 110,000 BTU
• AFUE Rating: Up to 95%
• Vent Type: Direct Vent
• Application: Residential / Light Commercial

The Navien NCB-240/110H combines high-efficiency heating and powerful domestic hot water performance into one compact unit, making it an excellent solution for modern residential installations.