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High Efficiency Combination Boilers

Glow-worm’s range of Combi Boilers provide central heating and hot water without the need for a separate tank to store water; hence you can easily tuck them away under the stairs or in kitchen cabinets. This is the most popular types of boiler in the UK, now found in around 70% of homes.

Energy combi boilers

ErP A rated small combi boiler

  • Wide range - available in 25, 30 or 35kW outputs
  • Rear flue option
  • High quality, automotive grade, aluminium heat exchanger
  • High efficiency, modulating Grundfos pump
  • ErP A rated for efficiency - helping you to lower your energy bills

Energy 35 Store combi boiler

35kW combi boiler

  • ErP A rated for efficiency - helping to lower energy bills
  • Provides high performance heating and instant, sustained hot water
  • System contains two highly insulated 21 litre integrated tanks
  • Fast re-generation times of less than 5 minutes

Ultimate₂ combi boiler

Exclusive combi boiler with 5 years warranty*

  • Leading combi boiler offering great performance
  • FREE 5 year warranty* with option to extend
  • £15 reward when registered through Club Energy
  • Available in 30kW and 35kW models

Betacom₃ combi boiler

Exclusive, great value combi with a 2 year warranty

  • ErP A rated boiler for efficiency - helping to reduce energy bills
  • FREE 2 year warranty* with option to extend
  • 24kW and 30kW outputs available
  • Includes analogue timer and flue

Easicom combi boiler

Quality, reliability, choice

  • Leading combi boiler offering great performance
  • FREE 4 year warranty when registered through Club Energy
  • Sold with inbuilt timer and standard horizontal flue
  • 24kW and 28kW outputs available