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Essential combi boilers

Quality, Performance and Value

  • Exceptional value for money combi range
  • FREE 3 year guarantee with option to extend*
  • Sold with analogue timer and flue
  • 24kW and 28kW outputs available
Find your local Glow-worm Club Energy Installer

The Essential boiler range is simple, highly efficient, reliable and easy to use, giving you a winning formula.

Designed with a high quality and powerful aluminium heat exchanger, the Essential has leading features, a bright, easy-to-read, LCD display and comes with a 3 year guarantee as standard with the option to extend*. The Essential is delivered as a boiler, flue and analogue timer package and is supported by a UK brand you can trust with industry leading service.

If you chose to have a Essential boiler fitted by a Glow-worm Club Energy installer you’ll also receive a FREE 3 year guarantee as standard* from our industry leading Group Service team. If you’d prefer however you can also easily extend this for an additional charge, when your installer registers the installation either through the Club Energy website or the market leading Plumbing Toolbox app.

Features & benefits

  • Great value combi range with choice of 24kW or 28kW models
  • In-built analogue timer
  • Easy-to-use interface with LCD display
  • Simple, smart design
  • Light weight, aluminium heat exchanger providing great performance
  • Highly efficient, A rated boiler for ErP energy labelling to reduce energy bills
  • Modulating Grundfos pump for reduced energy use
  • Compatible with full range of Glow-worm controls, flues and accessories
  • 3 year parts and labour guarantee*

*extended guarantee option available through Club Energy



Essential boilersUnit 24kW 28kW
Casing dimensions
(H x W x D)
mm740 x 418 x 300740 x 418 x 300
SEDBUK rating 2009 89.389.3
ErP rating heating AA
ErP rating DHW AA
Top (from top of boiler)mm300300
Side mm0.50.5**
Bottom mm300300
Front mm²600600**

** 5mm if removable panel/door

Related Products

Related Products

MiGo personal heating assistant

  • Remote heating and hot water control
  • Automatically learns your energy needs
  • MiGo and Glow-worm boilers speak the same language

Climapro₂ RF control

  • Simple-to-use handheld unit can be wall mounted or portable within the living area
  • Backlit display provides advanced user control and functionality
  • Two channel wireless programmable room thermostat


  • Easy to use
  • Extra low voltage
  • Simple & discreet 2 wire connection



How to get

Want to find out more?

Find your local Glow-worm Club Energy Installer

Club Energy is Glow-worm’s installer loyalty scheme. By choosing a Glow-worm Club Energy Partner, you’re choosing our network of fully trained, independent installers who can offer you exclusive extended Guarantees, as well as a free no obligation quote to ensure your Glow-worm boiler is the perfect fit for you and your home.

Alternative products

Alternative products

Energy combi boilers

  • ErP A rated for efficiency - helping you to reduce your energy bills
  • Compact size will fit in kitchen cupboards
  • Highly efficient for lower running costs

Ultimate₃ combi boilers

  • Leading combi boiler offering outstanding performance
  • ErP A rated for efficiency – helping you to reduce your energy bills
  • FREE 5 year parts and labour guarantee

Betacom₄ combi boilers

  • Value for money, high performance combi range
  • ErP A rated for efficiency - helping you to reduce your energy bills
  • FREE 5 year guarantee*