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 4.8 stars

1,375 reviews

 4.8 stars

1,375 reviews

Navien LCB700 28kW External System Oil Boiler

Navien LCB700 28kW External System Oil Boiler Boiler
Typical Price (inc VAT)
Typical installation Cost (inc VAT)*
£1000 - £1500
Sundries (Filter, Flue, etc)

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Make Navien
Model LCB700 28kW External System Oil Boiler
Is Condensing Condensing
Efficiency Rating 93%
Band Rating A Rating
LPG Compatible No
Standard Warranty 10 Years
Central Heating Max. Output 28kW
Mounting Floor Standing
Flow Rate N/A
Typical Price (inc VAT) £N/A
Typical installation Cost (inc VAT)* £1000 - £1500
ERP Rating A Heat

* This is a guide price for a straightforward, like-for-like boiler replacement. Installation costs will vary dependent on work required.

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Product Description

The LCB700 is a floor standing system oil boiler designed for external installation from manufacturer Navien. How efficient is the LCB700?

LCB700 system boilers are highly efficient, achieving efficiencies of 93% and hold an ErP A-rating for heat.

Will this size boiler suit my home?

This unit comes with an output rating of 28 kW which is best suited to medium-sized homes that don’t have such an excessive demand for heating and hot water.

Is there a boiler in the LCB700 range to suit my home?

Navien’s LCB700 range of boilers are available as both system and regular boilers as well as giving the option of internal or external installation. There’s also a number of output ratings to make finding a suitable unit much easier. In addition to this 28 kW boiler, there’s a less powerful 21 kW boiler and an even more powerful 36 kW unit available too.

Where can this boiler be installed?

This model has been designed for floor-standing external installation - suitable for a back garden - which will help to save you space in the home.

Can the LCB700 save me money?

An efficiency rating of 93% means that the LCB700 will only waste 7p for every £1 spent on heating your home, making it one of the highest efficiency oil boilers available. So you’ll potentially be saving on your energy bills all year round. As well as the energy bill savings, installation is made cheaper thanks to the compact size and low weight (67kg) of the unit.

Is a system boiler suitable for my home?

System boilers are best suited to medium and larger homes but not smaller properties as they’re designed to meet higher demand for heating and hot water and take up more space than a combi boiler. A system boiler directly heats the central heating system and hot water for a storage cylinder. Most of the important parts of the hot water and heating system, such as the pump and expansion vessel, are built into the unit itself making it quicker and cleaner to install. You’ll also get a faster response to demand for heating and hot water, plus you don’t need to have a feed and expansion tank in the loft.

What are the key features of the unit?

LCB700 boilers boast a number of features that make them effective and highly efficient. They include smart controls for improved comfort and eliminates the need for an additional thermostat, there’s a 2 channel system which separates heating and water temperatures as well as zone control so that you can set up 3 areas of the home for separate control.

More key features include a stainless steel heat exchanger for increased boiler life and lower running costs, a combined pipe for PRV and condensate drain reducing the number of pipes without compromising performance and saving space which allows for a quicker and easier installation. The unit features a fuss-free flue, the lowest NOx emissions on a boiler at only 57mg/kWH and geofencing capability to ensure that you never return to a cold house or end up heating an empty home again.

How long is the warranty period?

As standard, the LCB700 is covered by a 10 year warranty so you can be sure that you’re covered in the unlikely event of a fault.

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Excellent 4.8 out of 5

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