How we're operating during the COVID-19 pandemic

Find out more How we’re operating during COVID-19
  • Get the best quotes, fast!
  • Over 5,000 engineers across the UK
  • Gas Safe registered engineers

Need a New Boiler?

Get FREE no-obligation quotes now!

  • No delays! Get quotes today
  • Compare quotes & get the best prices
  • Gas Safe & OFTEC registered engineers
 4.7 stars

1,245 reviews

 4.7 stars

1,245 reviews

Ideal Logic System S18 Gas Boiler

Ideal Logic System S18 Gas Boiler Boiler
Typical Price (inc VAT)
£834
Typical installation Cost (inc VAT)*
£500 - £1000
Sundries (Filter, Flue, etc)
£300
Total Cost
£1,634 - £2,134

Get a quote to install this boiler

Need a repair instead? Get a repair quote
Make Ideal
Model Logic System S18 Gas Boiler
Is Condensing Condensing
Efficiency Rating 93%
Band Rating A Rated
LPG Compatible No
Standard Warranty 2 Years
Central Heating Max. Output 18 kW
Mounting Wall Mounted
Flow Rate N/A
Typical Price (inc VAT) £834
Typical installation Cost (inc VAT)* £500 - £1000
Sundries (Filter, Flue, etc) £300
Total Cost £1,634 - £2,134
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.

Get a quote to install this boiler

Need a repair instead? Get a repair quote
Product description

The Logic System S18, designed and manufactured by Ideal, is a condensing wall-mounted gas boiler that’s perfectly suited to smaller homes with little space to spare.

How efficient is the Logic System S18?

This is a highly efficient boiler, boasting a 93% efficiency rating and ErP A-rating for heat, so it could help to lower your energy bills.

Is the output rating suitable for my home?

A central heating output rating of 18 kW means that the Logic System S18 is perfectly suited to properties with 10-15 radiators.

Does the Logic System range include any other options?

The Logic System range includes 4 boilers and in addition to the S18, there’s also the S15, S24 and S30. These all have different central heating outputs, ranging from 15 kW right up to 30 kW, meaning that there’s a suitable model for almost any property type.

Would a system boiler be suitable for my home?

System boilers heat water to be stored in a hot water cylinder where it remains until you turn on a tap, bath or shower. By working in this way, system boilers are able to meet higher demands for domestic hot water than a combi boiler - great for homes with multiple bathrooms.

How long is the warranty period?

The Logic System S18 comes with a 2 year warranty as standard and the heat exchanger is covered by its own warranty period of 10 years.

What are the key features of the Logic System S18?

Features of the Logic System S18 include a clearly visible pressure gauge, backlit LCD display, boiler frost protection which prevents water in the boiler from freezing during the winter (ideal for loft or garage installations) and it also has a fully modulating output to increase efficiency.

How big is the Logic System S18?

A smaller property with limited room for a boiler installation is perfect for the S18, thanks to compact dimensions of 700x278x395mm (HxWxD).

Get a quote to install this boiler

Need a repair instead? Get a repair quote

Need a new boiler?

Get FREE no-obligation quotes now!

Excellent 4.7 out of 5

Find approved boiler engineers
in your area.

Begin your search by entering your postcode below.

Or select your region from the list and start your search