High Efficiency Combi Boilers

High-Efficiency Combi Boilers from Glow-wormGlow-worm’s combi boilers are the ideal solution for all your hot water and central heating needs.We’ve all been there: you turn on the shower, leave it running for a while and step in… only to be shocked by a torrent of cold water.Whilst this may be something every household has gone through before, it needn’t happen to you ever again.Glow-worm produces a wide range of heating and energy products, including first-class, high-efficiency combi boilers.

Energy Combi

A-Rated Small Combi Boiler

  • ErP A rated
  • Compact size will fit in kitchen cupboards
  • High efficiency – lower running costs
  • Ultra quiet operation
  • Eligible for up to 15 years of warranty*


Exclusive Combi Boiler

  • Easy to use and install
  • LPG compatible; without the need for a separate conversion kit
  • 5 years warranty as standard
  • UK manufactured in Glow-worm’s industry leading facility


Combi Boiler with a FREE 3 Year Warranty

  • 3 years FREE parts and labour warranty
  • Reliable Performance
  • Competitive Price
  • LPG Compatible without the need for a separate conversion kit
  • Warranty up to 6 years is available too*

Energy 35 Store

35kW Combi Boiler - Limitless

  • ErP A Rated
  • Instant, Unlimited Hot water
  • Ultra Quiet Operation
  • LPG Compatible
  • Perfect for large properties