Your fixed price includes the Boiler, Installation, and everything below.

  • Your new boiler, flue, and all installation fittings
  • Installation by a Gas Safe engineer
  • System cleaner and inhibitor
  • Magnetic system filter
  • Wireless EPH thermostat (combi boilers only)
  • Carbon Monoxide alarm
  • Gas Safe certificate and boiler warranty registration

* Vertical flue or any other flue attachments added as extras at checkout



The Ideal Logic² Max Combi represents a significant upgrade in the Logic boiler series, introducing advanced features for enhanced performance. It boasts a new, large high-resolution colour display, encapsulated in a sleek, contemporary design. A key feature of this model is the Ideal System Filter, specifically engineered to extend the boiler’s life and ensure reliable heating for your home. Additionally, it offers the reassurance of a 10-year warranty, underlining its long lasting reliability and quality.



  • 10 year warranty*
  • Large high resolution colour screen
  • Compact cupboard fit for a discrete install
  • Comes with an Ideal System Filter to maintain and protect your heating system
  • Sleek modern design
  • Quick and easy to install and service
  • Compatible with green heating technologies including solar thermal and hybrid systems

Ideal Logic 2 Max – FAQs

You can find answers to some common queries regarding the Ideal Logic Max below, the technical specification is also available at the bottom of this page. However, should you need further information or advice, please contact us at HeatNI.

Can the 35kW model be converted to use LPG?

Yes, the 35kW version is LPG conversion compatible.

What is the noise level for the 35kW boiler?

The sound power level indoors is rated at 46 dB(A), indicating a reasonably quiet operation.

What Is the Maximum Output of the Ideal Logic² Max Combi 35kW?

The Ideal Logic² Max Combi 35kW model, with its 24.2 kW output for central heating and 35.3 kW for domestic hot water, is specifically designed to meet the needs of larger homes or properties with higher hot water demand.

This output ensures efficient heating and hot water supply even in more substantial living spaces, making it an excellent choice for accommodating the needs of a larger household or multiple bathrooms.

Does the Ideal Logic² Max Combi 35kW Model, Connect to Gas and Central Heating

Yes, the Ideal Logic² Max Combi 35kW model is designed to connect to gas and central heating systems. It operates using natural gas as a fuel source and provides central heating and domestic hot water.

How Efficient Is the 35kW Model in Terms of Energy Usage?

The Ideal Logic² Max Combi 35kW model demonstrates high energy efficiency. Its SEDBUK (Seasonal Efficiency of Domestic Boilers in the UK) rating is 91.1%. This categorises it as a highly efficient boiler with a seasonal space heating energy efficiency of 94%. This Ideal Logic Max boiler makes excellent use of energy, resulting in reduced waste and potentially lower energy bills.



Available in three different outputs of 24kW, 30kW & 35kW.

Weight (Packaged) kg 32.8 33 33
Max Installation weight kg 28.5 28.6 28.6
CH Output(kW) min/max mean 70ºC 4.8-24.2 6.1-24.2 7.1-24.2
CH Output(kW) min/max mean 40ºC 5.1-25.6 6.4-25.6 7.5-25.6
DHW output (kW) max 24.2 30.3 35.3
DHW flow rate l/min 35ºC 9.9 12.4 14.5
SEDBUK rating (2005)% 91.1 91.1 91.1
SEDBUK rating (2009/2012)% 89.6 89.6 89.6
NOx Classification Class 6 Class 6 Class 6
LPG conversion Yes Yes Yes
Max Horizontal flue 9m 8m 6m
Max Vertical Flue 7.7m 7.5m 7.5m
Seasonal space heating efficiency class A A A
Seasonal space heating energy efficiency µs % 94 94 94
Sound power level indoors LWA dB(A) 50 46 46
Water heating energy efficiency class A A A


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