Navien is the first manufacturer in the world to incorporate its ground-breaking water heating technology into a condensing gas boiler, creating the ultimate combi crossover.
Using the same fundamentals as the company’s number 1 selling NPE water heater, Navien’s new NCB700, as well as NCB500 and NCB300 boilers prioritise incredible levels of hot water performance, with the latter two also models fitting inside a cupboard with ease.
This ensures the NCB family meets all levels of DHW demand, while maximising hot water comfort.
The flagship product in the range is the powerful combi crossover, the NCB700, a game-changing boiler capable of supplying up to three showers at the same time.
Thanks to its custom-built hydraulic block assembly, which includes a mixing valve, flow adjustment valve and recirculation pump, constant temperature and hot water delivery are guaranteed. The boiler also offers flow rates up to an industry leading 22 litres per minute (at 35°C temperature rise).