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 4.8 stars

1,567 reviews

 4.8 stars

1,567 reviews

Navien LCB700 36kW External System Oil Boiler

Navien LCB700 36kW 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 36kW 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 36kW
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 36 kW is a highly reliable external condensing oil system boiler that has been designed and manufactured by Navien.

How efficient is the LCB700 system?

The LCB700 is a highly efficient oil boiler, as shown by the seasonal efficiency rating of 93% and ErP A-rating for heat.

Will a 36 kW output rating suit my home?

An output rating of 36kW makes this unit best suited to larger homes with 2+ bathrooms and a high demand for both heating and hot water.

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

As well as this 36 kW unit, the LCB700 range also includes output ratings of 21 kW and 28 kW. The 21 kW unit is best suited to smaller homes, while medium-sized properties can benefit from the 26 kW model.

You can also choose between a system or regular boiler and a unit designed for internal or external installation.

Where can this boiler be installed?

As an external unit, this LCB700 model has been designed for outdoor installation in a back garden and its compact size means that it won’t take up too much space.

Will this boiler help to save me money?

Thanks to being highly efficient, the LCB700 will help to keep your energy bills down. The 93% seasonal efficiency means that for every £1 spent on heating your home, only 7p is wasted. This is a huge saving when compared to older units with efficiencies of around 60-70%. In addition, its compact size and low weight of 67kg helps to make for a simpler installation, saving you both time and money.

Is a system boiler suitable for my home?

System boilers send hot water to the radiators and a sealed hot water storage cylinder. The important parts of the system are built into the boiler which makes it more compact and easier to service than a regular boiler.

What are the key features of the LCB700?

Navien LCB700 boilers have a number of key features, including the revolutionary power of blue flame technology, smart controls with text-driven menu for improved 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 at only 57mg/kWH, geofencing capability which 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 oil boilers are available with a 10 year warranty, which means you’ll be well covered by Navien after the installation.

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Excellent 4.8 out of 5

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