The NCB700 ON combi gas boiler by Navien is a revolutionary model that redefines the limits of combi boilers, being the first to supply hot water to three bathrooms simultaneously. Designed for larger properties, it maximizes domestic hot water (DHW) recirculation, reduces water waste, and delivers an impressive flow rate, ensuring high comfort and efficiency. Navien's ON technology improves the efficiency of hot water delivery by increasing recirculation and reducing water waste

Features:

• NaviCirc™ technology allows quick and simple setup of hot water return system
• Built-in DHW recirculation pump provides instant hot water access
• High 54kW hot water output supports multiple bathrooms simultaneously
• Exceptional turndown ratio of 15:1 enhances efficiency and reduces fuel usage
• Built-in digital display panel for easy monitoring of energy usage
• Twelve-year warranty ensures long-term reliability and peace of mind
• ErP A+ energy efficiency rating for reduced operating costs
• IPX4 rating safeguards against water leakage
• Durable stainless steel heat exchangers improve efficiency and longevity
• Hydrogen-ready with 20% blend compatibility for future energy solutions
• 3-zone ready with Smart Plus control pack for advanced customization

Applications:

• Ideal for large properties with multiple bathrooms
• Suitable for homes with high hot water demand and high efficiency needs
• Perfect for installations requiring fast hot water delivery and reduced water wastage
• Great choice for families wanting energy cost savings and remote system control
• Future-proof solution for homes anticipating the shift to hydrogen-based fuels

Technical data:

• Brand - Navien
• Range - NCB700
• Product Type - Combi Boiler
• Wattage - 42kW
• Number of Showers - Two showers & one tap
• Heat Input Range - 35.0/3.5kW
• Modulation (Max/Min) - 10:01
• Heat Output Range @ 80/60°C - 34.0/3.4kW
• DHW Heat Input Range - 40.6/3.5kW
• DHW Output Range - 42.0/3.5kW
• DHW Flow Rate @ 25°C Temp. Rise. - 24.1lltr/min
• DHW Flow Rate @ 30°C Temp. Rise. - 20.1ltr/min
• DHW Flow Rate For Kitchen @ 45°C Temp. Rise. - 13.4ltr/min
• Flue Diameter - Coaxial Length 60/100mm
• Max. Horizontal Coaxial Length Ø60/100mm - 20mtr
• Max. Vertical Coaxial Length Ø60/100mm - 21mtr
• Lift Weight - 43kg
• Width - 440mm
• Depth - 353mm
• Height - 695mm
• ErP Efficiency - ErP A (94%)
• ErP Efficiency With Single Smart Plus - ErP A+ (98%)
• NOx Classification - Class 6
• IP Rating - IPX4

Supplied With:

• LPG Conversion Kit
• NaviCirc™ Kit

Standards & Certifications:

• ASME-certified stainless steel heat exchanger

Please Note:

• Smart weather forecasting and geofencing features available with Smart Plus Control Thermostat paired with the BCM-45RW communication module (Sold Separately)