​The Navien NCB500 24kW System Boiler is a high-efficiency gas boiler designed for central heating in medium sized homes. It is part of Navien's NCB500 range. System boilers like the NCB500 require a separate hot water cylinder and are ideal for properties with multiple bathrooms or higher hot water demand.​

Key Features

• Compact Design: With compact dimensions, the NCB500 fits comfortably inside a standard kitchen or airing cupboard. ​

• High Efficiency: The boiler boasts an ErP A rating with 93% efficiency.

• Advanced Technology: Equipped with a state-of-the-art flow adjustment valve and auto mixing valve for consistent hot water comfort.

• LPG Compatible: Compatible with LPG and NG (Conversion kit included)

• Smart Controls: Features smartphone compatibility, smart weather forecasting, and geofencing for remote adjustments and energy efficiency. ​