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Ideal Logic System S18 Gas Boiler

From: £2,079.00

Get a quote to install this boiler.




Logic System S18 Gas Boiler

Is Condensing


Efficiency Rating


Band Rating

A Rating

LPG Compatible


Standard Warranty

2 Years

Central Heating Max. Output

18 kW


Wall Mounted

Flow Rate


ERP Rating

A Heat

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).