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Last updated: 28th March, 2024


Ideal Logic Max Combi Boiler Review

Ideal Logic Max Combi Boiler Review

With over a century of being at the forefront of the heating industry, Ideal has helped revolutionise the UK market through design and innovation.

Brand Overview - Ideal Boilers

With over a century of being at the forefront of the heating industry, Ideal has helped revolutionise the UK market through design and innovation.

Ideal continues to be one of the most trusted and reliable boiler manufacturers in the UK due to a fusion of vast experience and a willingness to constantly innovate.

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What Is The Ideal Logic Range?

Launched in 2009, the highly accredited Logic boiler range from Ideal has been hailed by both consumer markets and industry insiders.

With an emphasis on providing highly energy efficient boilers to reduce emissions whilst simultaneously reducing a homeowners energy bills, the Logic range sounds… well, ideal.

Ideal Logic Max Technical Specification

Efficiency Rating


Energy Efficiency Class (ErP)

A Rated

LPG Compatible 


Available Outputs

24kW, 30kW, 35kW


Wall Mounted


29.3 kg


700mm (Height) x 395 (Width) x 278 mm (Depth)

Ideal Logic Max Flow Rates

Output (kW)

Flow Rate (litres/min)







Ideal Logic Max Key features

Compact size

The Ideal Logic Max’s sleek and compact design allows a powerful and efficient combi boiler to easily fit into a standard kitchen cupboard.

The Logic Max’s lightweight frame, weighing just 29.3 kg, is perfect for homes aiming to be economical with space.

Frost Protection

The Logic Max is fully equipped with built-in frost protection technology, this reduces the risk of component malfunction or failure due to very low temperatures.

Cold weather complications account for a huge number of boiler unreliability or breakdown issues, this often results in service or repair fees.

‘A’ Rated Efficiency

This combi is rated ‘A’ for its 94% efficiency in converting energy usage into heat for your home.

High Quality Components

The Logic Max boasts a high quality brass system filter, as well as a fully automated ignition and fan-assisted combustion.

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Combi Boilers

Ideal manufactures a number of boiler varieties, including the traditional system or regular (heat only).

However, it’s combi boilers that have been the model in which Ideal has excelled in recent years, garnering public plaudits and industry accolades alike.

Benefits Of Combi Boilers

Unlike conventional boilers, combi (combination) boilers link a home’s central heating system and water heating; no separate hot water tank is needed which is cleaner as it avoids potential rust or debris build up while providing instant hot water.

This allows a compact boiler which could fit into a standard kitchen cupboard or be wall mounted, to thoroughly heat a home without stealing lots of space.

Combi systems are also easier to service or for boiler replacement due to their popularity, meaning greater availability. 

Ideal Boiler Quality

As a market leader, the Ideal brand boasts an ‘Excellent’ 4.8/5 star rating on Trustpilot, having been reviewed over 20’000 times!

The constant recognition as evidenced by awards and endorsement from both consumers and industry sources, only confirms the success of the Ideal brand and its product range. 

Need A New Boiler?

At iHeat we stock a massive range of powerful and sleek new combi boilers, designed to save space and perform at the highest level. With sizes to fit any property, now might be the perfect time to replace an old boiler and upgrade to an efficient combi.

Get a free instant fixed price quote on our combi range, with next day Gas Safe installation available, getting a new boiler has never been so easy.

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Frequently Asked Questions

Is the Ideal Logic Max a Good Boiler?

The Ideal Logic Max is considered a good boiler due to its high efficiency, reliability, and user-friendly interface. It's built on the success of the Ideal Logic range but with added features, including a longer warranty period, making it a competitive option for many homeowners. Its compact size makes it suitable for installation in a variety of home sizes, and it has received positive reviews for performance and ease of use.

What is the Difference Between Logic and Logic Max?

The main difference between the Ideal Logic and Ideal Logic Max series lies in the warranty length and some additional features. The Logic Max models come with a longer warranty, typically up to 10 years, compared to the standard Logic series, which usually offers a shorter warranty period. Additionally, the Logic Max boilers might come with some enhanced components or features, such as a built-in system filter, designed to extend the lifespan of the boiler and improve its efficiency.

How Much is an Ideal Max Combi Boiler?

The price of an Ideal Max combi boiler varies depending on the model and its output rating, but it generally ranges between £900 to £1,200 for the unit alone. Installation costs can add approximately £500 to £1,500 to the total price, depending on the complexity of the installation and any additional work required. It's advisable to get multiple quotes to ensure you get the best deal.

What are the Common Faults with Ideal Logic Boiler?

Common faults with Ideal Logic boilers can include issues with ignition, pressure problems (either too low or too high), and error codes indicating faults with internal components such as sensors or the pump. Regular servicing can help identify and prevent many of these issues before they become more serious problems.

How Long Do Ideal Logic Boilers Last?

With proper installation and regular maintenance, Ideal Logic boilers can last between 10 to 15 years. The longevity of the boiler can be influenced by several factors, including how often it's serviced, the quality of the installation, and the hardness of the water in your area.

Why Does My Ideal Boiler Keep Firing Up When Heating is Off?

If your Ideal boiler keeps firing up even when the heating is off, it could be due to several reasons, such as a faulty thermostat, an issue with the boiler's internal controls, or the boiler preheating hot water if you have a model with a preheat function. It's essential to diagnose the issue correctly, which might require consulting the manual or getting help from a professional.

Why is My Combi Boiler Running When Nothing is On?

A combi boiler might run when nothing is on due to several reasons:

  • Preheating: Some boilers have a preheat function to provide instant hot water, which might cause the boiler to run occasionally.
  • Faulty thermostat: If the thermostat is malfunctioning or incorrectly set, it might signal the boiler to heat unnecessarily.
  • Diverter valve issue: For combi boilers, a faulty diverter valve could mistakenly route hot water into the heating system even when only hot water usage is required.
For any persisting issues, it's best to consult a certified heating engineer to diagnose and resolve the problem accurately.

Stephen Day profile photo
Article by
Stephen Day | Co-founder
Gas Safe registered and FGAS certified engineer with over 20 years experience in the heating and cooling industry.