Refine your results

Apply filters

Best for boilers

  •  Best for boilers (13)

Seasonal Space Heating Energy Efficiency Class

  •  A (8)


  •  30 (4)
  •  25 (3)
  •  18 (2)
  •  35 (2)
  •  12 (1)
More >


  •  Compact (4)
  •  Energy (19)

Width (mm)

  •  390 (5)
  •  400 (2)

Height (mm)

  •  626 (2)
  •  700 (5)

Product Type

  •  Boiler Pack (7)
  •  Boiler, Flue and Filter (3)
  •  Combi Boiler Pack (2)
  •  Combi Boiler and Horizontal Flue Pack (3)
  •  Natural Gas Boiler (8)

Class %

  •  93 (3)

Banding KW

  •  27-35KW (6)
  •  16-26KW (5)
  •  0-15 kW (2)

Apply filters

Recently Viewed Items

Glow-worm Boilers

Glow-worm - Small but mighty

Introducing the new Glow-worm Compact Range

Read more

Our new combi range packs powerful performance into our smallest ever designs. It's the perfect fit for flats, off-grid homes and first -time buyers - or anywhere space and budget are tight.

Browse now

Displaying products 1 - 12 of 29

Switch to Grid View
Exc. VAT
Select products to compare

Glow Worm are a leading British manufacturer of boilers, who make combi boilers, system boilers and heat only boilers. Glow Worm Energy is their flagship boiler range, offering exceptional energy efficiency and a compact design for easy installation.

At Wolseley, we are the trade’s boiler specialists. That means you can rely on our range of Glow Worm boilers to deliver for your customers. Our range includes Glow Worm combi boilers, as well as system and heat only models too – so whatever property you are working on, we’ve got you covered. Whether you’re working on a boiler replacement job or a brand new build, we’ve got what you need to get the job done. Be sure to also shop our range of Glow Worm flues, and if you’re working on a repair we also have a huge range of Glow Worm parts.

Register a trade account with Wolseley today to get access to our innovative product selector toolsPartsArena, rapid reordering and free delivery on all orders to your home or site. You can also click and collect from your local branch.