Navien LCB700 21kW External Combi Oil Boiler
| Make | Navien |
| Model | LCB700 21kW External Combi Oil Boiler |
| Is Condensing | Condensing |
| Efficiency Rating | 93% |
| Band Rating | A Rating |
| LPG Compatible | No |
| Standard Warranty | 10 Years |
| Central Heating Max. Output | 23 kW |
| Mounting | Floor Standing |
| Flow Rate | 14 l/min |
| Typical Price (inc VAT) | £N/A |
| Typical installation Cost (inc VAT)* | £1000 - £1500 |
| ERP Rating | A Heat A Water |
* This is a guide price for a straightforward, like-for-like boiler replacement. Installation costs will vary dependent on work required.
Get your best deal
Quickly compare 3 FREE quotes
- Quotes from local engineers
- Get quotes today, installed tomorrow
- Finance options available
- Save up to £500 on installation
1,8 million quotes provided in 10 years
The Navien LCB700 21 kW External is a condensing combi oil boiler designed for outdoor installation.
How efficient is the Navien LCB700?
Navien LCB700 boilers are highly efficient condensing boilers as shown by the ErP A-rating and 93% efficiency. This efficiency can be increased to 98% when installed alongside a Naven Smart Plus thermostat.
Is the output rating suitable for my home?
A combi boiler with a central heating output rating of 21 kW is best suited to homes with fewer than 10 radiators. Properties with 10 radiators or more will need a higher output.
Are other outputs available in the LCB700 range?
If you need a more powerful output then the LCB700 range also includes combi boilers with outputs of 28 kW and 36 kW. LCB700 combi boilers are also available for internal installation.
Should the hot water demands of your home be too large for a combi to meet, then Navien also manufactures oil system and regular boilers.
Is a combi boiler suitable for my home?
Combi boilers are compact heating systems that don’t need to be installed alongside any additional tanks or cylinders - other than an oil storage tank. Great news for properties with limited space and you also don’t have to wait for the cylinder to fill with hot water. However, if you live in a property with multiple bathrooms, a combi is unlikely to be suitable. In that case, it’s recommended to have a system or regular boiler installed.
How long is the warranty period?
Navien LCB700 boilers are available with a lengthy 10 year warranty that will see you’re well covered long after the installation.
What are the key features of the Navien LCB700?
The key feature of the Navien LCB700 range is that they’ve been designed for installation outside of a property. This will help to free up space in your property that you would lose with an internal model.
In terms of operation, LCB700 boilers have blue flame technology to increase efficiency and reduce NOx emissions. A quick domestic hot water supply function means that you won’t be waiting long for hot water, a smart control panel displays how much oil is being used and a stainless steel heat exchanger helps to increase the expected boiler life.
How big is the Navien LCB700 21 kW External?
Thanks to compact dimensions of 650 x 673 x 900mm (HxWxD), the Navien LCB700 External won’t take up too much space in your garden area.
Get your best deal
Quickly compare 3 FREE quotes
- Quotes from local engineers
- Get quotes today, installed tomorrow
- Finance options available
- Save up to £500 on installation
1,8 million quotes provided in 10 years