Features & Benefits

The Logic Combi ESP1 is available in a choice of three outputs of 24, 30 and 35 kW, providing an easy to install solution for your New Build properties. 


  • Flexible warranty options
  • Achieves optium SAP and DER ratings for standard combination boiler usage
  • Compact cupboard fit
  • Low lift weight (starting from 28.9kg)
  • Wide range of additional flueing options
  • Easy to see pressure gauge
  • LPG conversion available
  • Large back-lit display
  • Energy Saving Trust endorsed
  • Fully modulating operation to low outputs
  • Automatic bypass
  • Boiler frost protection
  • Built-in, easy to use filling loop
  • Simple diverter valve design
  • Preformed copper tails and pre-wired mains lead
  • Universal condensate connection
  • Badge Uk Manufacturing MADE IN UK
  • Badge Digi Display DIGITAL DISPLAY
  • Badge Compact COMPACT
  • Badge Flue Variants FLUE VARIANTS
  • Badge 2Yr Warranty 2 YEAR WARRANTY
  • Badge Good Housekeeping GOOD HOUSEKEEPING
  • Badge Low Weight LOW LIFT WEIGHT
  • Badge Nox Class5 NOX CLASS 5
  • Badge Frost Protection FROST PROTECTION
  • Badge Erp Compliant 2 ERP HEATING & WATER COMPLIANT
  • Bim Icon 002 BIM

Warranty

Subject to terms and conditions. Parts and labour warranty available when registered within 30 days of installation.

Technical Specification

BOILER MODEL243035
Weight (packaged) kg33.733.833.9
Max installation weight kg28.929.029.1
CH Output (kW) min/max mean 70°C4.8 - 24.26.1 - 24.27.1 - 24.2
CH Output (kW) min/max mean 40°C5.1 - 25.66.4 - 25.67.5 - 25.6
DHW output (kW) max24.230.335.3
SEDBUK rating (2005) %91.191.191.1
SEDBUK rating (2009/2012) %89.689.689.6
NOx classificationCLASS 5CLASS 5CLASS 5
Convert to LPGNoNoYes
Max horizontal flue*9m9m9m
Max vertical flue*7.5m7.5m7.5m
Powered vertical flue*22m22m22m
Condensing boilerYesYesYes
Seasonal space heating efficiency classAAA
Rated heat output kW242424
Seasonal space heating energy efficiency ŋs %949494
Sound power level, indoors LWA dB484644
Water heating energy efficiency classAAA
PCDB Numbers - Natural Gas 017955017956017929
PCDB Numbers - Propane (Conversion Kit)018067018060

Controls & accessories

  • Product Touch

    Touch Colour Screen Thermostat

    Our Touch RF control features a full colour touch screen and is simple to operate. Touch can be installed in under 5 minutes with no need for hardwiring. 

  • Product Mechanical Controls

    Mechanical Timer

    Our easy to use, 24 hour mechanical timer is a simple plug-in option. Continuous, timed or off modes can be set, providing 15 minute period operation.

  • Product Electronic Controls

    Electronic Thermostat

    This Radio Frequency (RF) digital timer provides heating and hot water control via a simple user interface.

  • Product Outdoor Sensor

    Weather Compensation Kit

    Our outdoor sensor works by measuring the temperature outside the home and adjusting the temperature of the radiators inside accordingly. If the weather is particularly cold outside, the outdoor sensor will communicate with the boiler intelligently to increase the temperature inside. This process also works in reverse allowing the system to operate more efficiency.

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.