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Glow-worm - offering you a full system solution

Glow-worm - offering you a full system solution

Glow-worm Product Range

Over 75 years of commitment to top quality, reliability and exceptional durability have made Glow-worm one of the UK’s leading heating manufacturers. We have built our reputation on delivering products which are straightforward, dependable and designed with you in mind.

Today, Glow-worm not only produce award winning high efficiency domestic boilers, but we also offer intelligent controls, hot water cylinders and a range of renewable technologies all boasting low energy consumption reducing both your costs and your carbon footprint.

Our product range is clearly defined to meet the needs of a wide range of UK homes. With universal flueing systems, diagnostics, user controls and installation accessories, once you have installed and used one
Glow-worm appliance, it’s easy to install and use them all.


  • Combination Boilers

    Combination Boilers Combination Boilers

    We have combi boilers to suit your budget and space requirements. SEDBUK A rated Ultracom2 , Flexicom & Xtramax HE central heating boilers and SEDBUK B rated Betacom c.
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  • Open Vent Boilers

    Open Vent Boilers Open Vent Boilers

    All of our open vent condensing boilers are SEDBUK A rated and work great as part of Glow-worm's complete central heating boilers systems.
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  • System Boilers

    System Boilers System Boilers

    All our system boilers are designed to work as part of a complete central heating boiler system. As part of Glow-worm's complete central heating systems, we recommend Glow-worm cylinders, controls and accessories.
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  • System Store Boilers

    System Store Boilers System Store Boilers

    Ultrapower sxi condensing boilers are suited to a larger property. The self contained Ultrapower sxi system store has a cylinder built into the boiler delivering hot water comparable to 170 litres cylinder.
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  • Renewable Energies

    Renewable Energies Renewable Energies

    Glow-worm offers Solar Thermal, Heat Pumps and Heat Recovery for honest, reliable and straight-forward renewable energy solutions.
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  • Controls

    Controls Controls

    Glow-worm's range of controls are specifically designed to work with Glow-worm appliances, creating highly efficient heating systems and further home comfort.
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  • Cylinders

    Cylinders Cylinders

    At Glow-worm, we provide a wide range of mains-fed unvented hot water cylinders that are designed to work with any UK boiler, not just the Glow-worm range, in open vented and sealed heating systems.
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  • Accessories

    Accessories Accessories

    A range of accessories compliment and enhance your chosen boiler system, offering quick and straight-forward heating solutions.
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