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 4.8 stars

1,567 reviews

 4.8 stars

1,567 reviews

Navien LCB700 21kW External Regular Oil Boiler

Navien LCB700 21kW External Regular 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 21kW External Regular Oil Boiler
Is Condensing Condensing
Efficiency Rating 93%
Band Rating A Rating
LPG Compatible No
Standard Warranty 10 Years
Central Heating Max. Output 21kW
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

Manufactured by Navien, the LCB700 21 kW is a condensing regular oil boiler designed for external installation.

How efficient is the LCB700?

Navien’s LCB700 range is highly efficient as shown by the seasonal efficiency rating of 93% and an ErP A-rating for heat.

Will this size boiler suit my home?

An output rating of 21kW makes this LCB700 model best suited to small homes with 1 bathroom and a fairly low demand for central heating and hot water.

What options are available in the LCB700 range?

There’s no shortage of choice when it comes to the Navien LCB700 range of oil boilers, with internal and external options available as well as system and regular boilers. In addition, there’s also a range of output ratings too. Accompanying this 21 kW unit are 28 kW and 36 kW units too, ideal for larger homes with higher demands for heating and hot water.

Where can this boiler be installed?

LCB700 have been designed for external floor-standing installation - although an internal model is also available. Not only will an external boiler save space in your home but its compact size means that it won’t take up much space in your garden either.

Can this boiler save me money?

This unit can save you money in a wide variety of ways. With this unit being a highly reliable and efficient boiler it is able to save you much needed money on your energy bills. Such as for every £1.00 you spend on your energy a standard boiler provides only £0.65 worth of heat with the LCB700 it provides £0.93 worth of heating only losing a marginal amount in the process making it a great choice to allow you to reduce your energy bills. As well as this it is a compact unit that weighs 67kg allowing an easy installation that can save you both time and money.

Is a regular boiler suitable for my home?

Regular boilers directly heat the central heating system while also producing hot water for a cylinder. As a hot water cylinder is needed, which is often fed by a cold water storage cistern located in the attic, a regular boiler isn’t suitable for smaller properties where space may be limited.

What are the key features of the Boiler?

LCB700 boilers boast many features, such as revolutionary power of blue flame technology, smart controls with a text-driven menu for greater comfort and control, a two channel system with separate options for heating and water temperatures, zone control which makes it possible to set up 3 areas of the home as zones and control each one.

More features include a stainless steel heat exchanger to increase boiler life as well as lowering costs, a combined pipe for PRV and condensate drain to reduce the number of pipes without compromising performance, a fuss-free flue, the lowest NOx emissions on a boiler (57mg/kWH), a geofencing capability means that the heating will turn on or off depending on your location and a smart forecast so that the boiler can heat your home according to the forecast and weather outside.

How long is the warranty period?

LCB700 boilers are available with a 10 year warranty as standard which means that you’ll be well covered by Navien after the installation.

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Excellent 4.8 out of 5

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