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Ideal Logic Max System

The Ideal Logic Max System is an easy-to-install gas condensing boiler that offers UK homeowners great value for money.

Designed and built in the UK by Ideal, the Logic Max System can meet the needs of small, medium and large-sized homes that have enough airing cupboard space to house a hot water storage cylinder. It comes in four heat outputs, can be discreetly installed in a kitchen cupboard and is usable with a choice of Ideal optional controls. Not only that, but this compact boiler is available with a very appealing warranty.

How Much Does this Boiler Cost?

Ideal Logic Max System prices range from £860 to £1,150, depending on whether you need the 15kW, 18kW, 24kW or 34kW model. These prices do not include the fitting cost, so you’ll need to get quotes on the installation as well. You might be able to save some money on both costs when you shop around and compare prices because boiler and installation quotes can vary quite a bit between different companies and installers.

How will I know if this Boiler is Suitable for My Home?

System boilers, such as the Logic Max System, produce hot water that needs to be stored in a separate cylinder (usually located in an airing cupboard). Although they take up a bit more space than combi boilers, system boilers do not require a tank in the loft. They’re perfectly suited to homes with more than one bathroom because they can keep up with larger hot water requirements.

We suggest you always get in touch with a Gas Safe registered engineer prior to selecting a new boiler for your home. A trusted engineer can assess your demands to help you work out the best type of boiler for your property, as well as the correct boiler output (size or model) for your needs.

Is it a High Efficiency Boiler?

Like all Ideal Logic Max boilers, this system offering is A-rated for heating efficiency and a good choice for homes looking to replace an inefficient boiler. Its official SEDBUK rating is 91.1% and its seasonal space heating energy efficiency is 93%. Also, the boiler is compatible with Ideal’s range of optional controls and accessories, which help to keep running costs low and further reduce your carbon footprint.

Does this Boiler have a Good Range of Controls and Features?

Yep. The boiler has a selection of buttons and dials that enable you to control heating and hot water and you can purchase extra controls, such as a mechanical timer, an electronic thermostat or a weather compensation kit. It comes complete with a pressure gauge and a digital display with an annual service reminder, both of which can be found on the front face of the boiler next to the user controls. Ideal’s Logic Max System also has an Ideal system filter and built-in frost protection, plus the unit is made from hard-wearing and scratch resistant materials to keep it looking neat and tidy year after year.

How long is the Warranty on this Boiler?

You’ll like this one. The Ideal Logic Max System comes with a fabulous 10-year parts and labour warranty as standard as long as you register it within 30 days of installation and have it serviced by a Gas Safe registered engineer every year.

Ideal Logic Max System Boiler Prices and Sizes


ModelTypeDimensionsMaximum Flow RateOutputEfficiency RatingTypical Price
Logic Max System 15SystemH – 700 mm
W – 395 mm
D – 278 mm
N/A15 kWA 90% and above£860
Logic Max System 18SystemH – 700 mm
W – 395 mm
D – 278 mm
N/A18 kWA 90% and above£960
Logic Max System 24SystemH – 700 mm
W – 395 mm
D – 278 mm
N/A24 kWA 90% and above£1060
Logic Max System 34SystemH – 700 mm
W – 395 mm
D – 278 mm
N/A34 kWA 90% and above£1150

Summary of Important Information

  • Priced between £860 to £1,150
  • Heating output of 15kW, 18kW, 24kW or 34kW
  • Dimensions of 700mm (H) x 395mm (W) x 278mm (D)
  • Uses gas as its fuel source
  • A-rated for efficiency
  • 10-year warranty as standard

Pros and Cons

We think the Ideal Logic Max System is a decent energy efficient mid-range boiler that is well priced and comes with a great warranty. Below, you can find a list of pros and cons to help you determine if this boiler is the perfect match for your home and needs.


  • Ideal boilers have a good overall Which? score of 69%
  • Fits in a kitchen cupboard
  • Suited to small, medium and large-sized homes
  • Easy to install, use and service
  • Frost protection – protects boiler when installed in a garage or basement
  • Service timer with telephone display – reminds you when your annual boiler service is due
  • High-quality Ideal system filter – improves boiler efficiency and keeps running costs low
  • Provides maximum energy efficiency – reduce fuel bills and carbon emissions
  • Compatible with a range of Ideal controls – improves efficiency and performance
  • 10-year warranty


  • Requires separate cylinder
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