Features & Benefits

With a lightweight design, concealed connections at the base and no compartment ventilation required, the Logic System can be installed into a standard kitchen cupboard and is the perfect choice for a replacement or new installation where siting is limited.

  • 2 year parts and labour warranty*
  • 10 year warranty on heat exchanger**
  • Easy to see pressure gauge
  • Low lift weight (starting from 26.1kg)
  • Back-lit display
  • Compact cupboard fit
  • LPG conversion available
  • Wide range of additional flueing options
  • Preformed copper tails and pre-wired mains lead
  • Boiler frost protection
  • Built-in, easy to use filling loop
  • Fully modulating operation to low outputs
  • Universal condensate connection
  • Badge Digi Display DIGITAL DISPLAY
  • Badge Nox Class5 NOX CLASS 5
  • Badge Erp Compliant 1 ERP HEATING COMPLIANT
  • Badge Queens Award QUEEN'S AWARD
  • Badge 2Yr Warranty 2 YEAR WARRANTY
  • Badge Good Housekeeping GOOD HOUSEKEEPING
  • Badge Compact COMPACT
  • Badge Frost Protection FROST PROTECTION
  • Badge Uk Manufacturing MADE IN UK

Warranty

* 2 year parts and labour warranty available when registered within 30 days of installation. *Subject to terms and conditions

**when installed with an Ideal System Filter and registered on Installer Connect or idealboilers.com.

Technical Specification

Available in a choice of four outputs – 15kW, 18kW, 24kW and 30KW, the Logic System provides a dependable and efficient solution for new and replacement installations.

BOILER MODELS15S18S24S30
Weight (packaged) kg31.531.531.531.5
Max installation weight kg26.126.126.126.1
CH output (kW) min/max @ 70°C4.8 - 15.04.8 - 18.04.8 - 24.26.1 - 30.3
CH output (kW) min/max @ 40°C5.1 - 15.95.1 - 19.15.1 - 25.66.4 - 31.0
DHW output (kW) maxn/an/an/an/a
DHW flow rating I/min. 35°C risen/an/an/an/a
SEDBUK rating (2005) %91.291.191.291.1
SEDBUK rating (2009/2012) %89.489.789.789.6
NOx classificationCLASS 5CLASS 5CLASS 5CLASS 5
Convert to LPGNoNoNoYes
Max horizontal flue9m9m9m8m
Max vertical flue7.5m7.5m7.5m7.5m
Powered vertical flue22m22m22m22m
Condensing boilerYesYesYesYes
Seasonal space heating efficiency classAAAA
Related heat output kW15182430
Seasonal space heating energy efficiency ŋs %93939493
Sound power level, indoors Lwa dB44464848
Water heating energy efficiency classn/an/an/an/a

Controls & accessories

  • Product Outdoor Sensor

    Weather Compensation Kit

    Our weather compensation kit measures the temperature outside the home and adjusting the temperature of the radiators inside accordingly. 

    User guide
  • Product Ideal System Filter

    Ideal System Filter

    The Ideal System Filter is a magnetic filter for use with all Ideal boilers. The compact forged brass design is easy to install and fits on horizontal or vertical pipework in both flow directions. 

    User guide

Our awards

  • Good Housekeeping 2017

    Good Housekeeping Reader Recommended

    We’re proud to have won this award for the second time – a 17,000-strong reader survey means our boilers come highly recommended.

  • Queens Award Enterprise

    The Queen's Awards for Enterprise

    Ideal Logic and Logic+ boilers won this coveted award in recognition of their high levels of excellence and industry-leading technology.

  • Quiet Mark

    Quiet Mark

    Our Logic+ range joined 70 leading global brands in winning a Quiet Mark from the Noise Abatement Society – we’re only the second UK boiler manufacturer to achieve this accolade.