Navien NCB700 42KW Combi & Flue Pack - In Store Payment and Collection Only
NAVIEN NCB700 42 & FLUE
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NCB700 ON The Powerful Combi Crossover
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).
- Built-in DHW recirculation pump for super fast hot water delivery
- 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*
- IPX4 rating provides protection from any water leaks
- NaviCirc™ for simple and fast set up of hot water return system
- 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.
Technical Data
| NCB700-2S+/42K | NCB700-3S/54K | ||
| Shower rating | Number of showers | Two showers & one tap | Three showers |
| Heat Output | Heat input range | 35.0/3.5kW | 35/3.5kW |
| Modulation (max/min) | 10:1 | 15:1 | |
| Heat output range @ 80/60°C | 34.0/3.4kW | 34.0/3.4kW | |
| DHW | DHW heat input range | 40.6/3.5kW | 52.4/3.5kW |
| DHW output range | 42.0/3.5kW | 54.0/3.5kW | |
| DHW flow rate @ 25°C temp. rise. | 24.1l/min | 31l/min | |
| DHW flow rate @ 30°C temp. rise. | 20.1l/min | 25.8l/min | |
| DHW flow rate for kitchen @ 45°C temp. rise. | 13.4l/min | 17.2l/min | |
| Flue | Flue Size | Coaxial length Ø 60/100 | |
| Max. horizontal coaxial length Ø60/100 | 20m | ||
| Max. vertical coaxial length Ø60/100 | 21m | ||
| Weight | Lift weight | 43kg | 46kg |
| Dimensions | Width x Depth x Height | 440 x 353 x 695mm | |
| ErP Efficiency | ErP A (94%) | ||
| ErP Efficiency with Single Smart Plus | ErP A+ (98%) | ||
| NOx Classification | Class 6 | ||
Any orders purchased before 12pm will be dispatched the same working day, any orders after this will be dispatched the following working day. Any orders purchased Friday after 12pm will be sent on the Monday except for bank holidays. Orders will not be dispatched on the following days: Saturday & Sunday
Standard Delivery - £6.50 1-3 Working Days (excludes bank holidays & Weekends)
Free Delivery - Orders Over £100.00 1-3 Working Days