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The Glow-worm brand has a heritage spanning 75 years in the heating business. Glow-worm is the well known and trusted British brand that delivers value for money heating and hot water systems you can rely on, allowing you to get on with your life in comfort.


Over the years they have celebrated many milestones – in the 1990’s Glow-worm led the way by developing one of the first condensing boilers; a technology which is now fitted as standard in millions of people’s homes across the UK and Ireland. More recently, Glow-worm received the “Best Buy” award by the highly prestigious Which? consumer organisation, demonstrating the quality, value for money and performance of their products.


Today, Glow-worm’s heating solutions cover not just domestic gas boilers, but renewable technologies, hot water cylinders and domestic controls. Offering you one of the most comprehensive ranges of any manufacturer and backed by their nationwide support services, Glow-worm is one of the UK’s best known and leading suppliers of performance heating solutions for your needs.


ecoTEC plus system


  • High performance, control and efficiency

  • Precision heating to reduce your fuel bills

  • A wide range of heating control options, from our simple boiler timer right up to our vSMART™ smartphone app

  • 5-year guarantee as standard, with 7 to 10 years available when you book a Vaillant Advance installer

Ariston Boilers




Gas-fired wall-mounted condensing boiler with modulating stainless steel cylinder burner and Inox-Radial heat exchanger surface. Rated input: 37 to 118 MBH.


With its outstanding design and price/performance ratio, the Vitodens 100 is the perfect mix of performance and value. Its compact design, zero clearance to combustibles and extremely quiet operation make the Vitodens 100 an ideal choice even in the smallest spaces. Plus, with a limited residential lifetime warranty, you can be sure your investment will deliver long-lasting, value year after year.

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