The game-changing NCB700 ON combi gas boiler from Navien is the first product of its type capable of delivering hot water to three bathrooms simultaneously. Shattering all preconceptions of a combi boiler’s suitability for large properties, the NCB700 ON cleverly maximises recirculation of domestic hot water (DHW) to significantly reduce water wastage and offer flow rates up to an industry-leading 22 litres per minute (at 35°C temperature rise).
NaviCirc for simple set up of hot water return system
Powerful 54kW hot water output delivering up to 22lpm
Industry-leading turndown ratio of 15:1 for supreme efficiencies
Easy to use built-in digital display panel displays energy usage
12-year warranty for complete peace of mind
ErP A+ energy efficiency rating for ultra-low running costs*
Built-in DHW recirculation pump for super fast hot water delivery
Stainless steel heat exchangers for optimum durability and long term efficiencies
Hydrogen-ready (20% blend) technology for futureproofing
3-zone ready with Smart Plus control pack
* An A+ energy rating is achieved when installed with a single Smart Plus room thermostat.