Navien 42kW Combi Boiler Internal NCB700 2S+/42K

£1,656

The Navien 42kW Combi Boiler Internal NCB700 2S+/42K is designed to serve large properties, providing hot water to three bathrooms simultaneously. It boasts a 17.2 LPM flow rate, a built-in DHW recirculation pump, and hydrogen-ready technology. Comes with a 12-year warranty for peace of mind.

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Estimated Delivery: For most items (over 99% of our products), orders placed before 3pm on working days will be dispatched the same day with our Fast DELIVERY 1st class service. For the rare items not immediately in stock, dispatch may take 1-3 working days after receiving your order. If your order cannot be dispatched the same day, we will notify you via email.
For boilers: We aim to dispatch on the next working day. However, in some cases, it may take 2-3 working days to dispatch. Rest assured, we will always strive for the fastest possible turnaround.

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The Navien NCB700 2S+/42K 42kW Combi Boiler is revolutionizing how combi boilers serve large properties by delivering hot water to three bathrooms simultaneously. With an industry-leading flow rate of 17.2 liters per minute (at a 35°C temperature rise), this boiler is perfect for homes with high hot water demands. The built-in domestic hot water (DHW) recirculation pump and NaviCirc system ensure fast, efficient hot water delivery while minimizing water wastage.

Certified with ASME stainless steel heat exchangers, the NCB700 is designed for long-lasting efficiency and durability. Its 10:1 turndown ratio enables precise modulation, optimizing energy usage based on demand. Additionally, this boiler is hydrogen-ready (20% blend), making it future-proof and environmentally friendly.

The boiler features a digital display with a built-in setup wizard, making installation and operation simple. The high-efficiency ErP rating of 94%, combined with ErP A+ energy efficiency when paired with Smart Plus thermostats for multizone heating, guarantees significant energy savings.

Key Features:

Industry-Leading Flow Rate: Delivers up to 17.2 LPM at 35°C rise, providing hot water to three bathrooms simultaneously.
Built-In DHW Recirculation Pump: Minimizes water wastage and ensures quick delivery of hot water.
ASME-Certified Stainless Steel Heat Exchangers: Ensure long-term durability and efficient performance.
10:1 Turndown Ratio: Allows for precise modulation to meet varying heating and hot water demands.
Hydrogen-Ready Technology: Future-proof with the ability to support a 20% hydrogen blend.
NaviCirc Hot Water Return System: Simple setup for recirculation of hot water, reducing waste.
Easy-to-Use Digital Display: Includes a built-in setup wizard for effortless installation and operation.
High Efficiency: Achieves an ErP rating of 94% with A+ energy efficiency when used with Smart Plus thermostats.

Technical Specifications:

Model Number: PNCB7000042L001
Fuel Type: Natural Gas / LPG
Heat Output (CH): 42 kW
DHW Output (Min/Max): 3.5 / 42.0 kW
DHW Flow Rate (35°C Rise): 17.2 l/min
CH Condensing Max Output: 37.1 kW
ERP Rating: A
Noise Level: 51 dBA
Maximum Vertical Flue (125mm): 70 meters
Maximum Vertical Flue (100mm): 21 meters
Maximum Horizontal Flue (100mm): 21 meters
Nox Class: 6
Solar Compatible: Yes
Dimensions: 695mm (Height), 440mm (Width), 353mm (Depth)
Warranty: 12 years

The Navien NCB700 2S+/42K Combi Boiler is an ideal solution for large properties requiring high hot water output, long-term efficiency, and future-ready technology, ensuring comfort, reliability, and sustainability.