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Navien NCB700: The Powerful Combi Crossover

The game-changing NCB700 combi gas boiler 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 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).