Twin flue technology designed to work without compromise.

  • System Index Product Preview 2018

    System S30

    High SEDBUK efficiency rating and easy to install.

    • 30kW output
    • Twin flue up to 27m
    • Up to 7 year warranty
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  • Combi Index Product Preview 2018

    Combi C30 & C35

    Complete hassle-free home comfort from a single compact appliance.

    • 30kW & 35kW outputs
    • Twin flue up to 27m
    • Up to 7 year warranty
    View product
  • Heat Index Product Preview 2018

    Heat 45 & 55

    Ideal for large homes or light commercial settings.

    • 45kW & 55kW outputs
    • Twin flue up to 21m
    • Up to 7 year warranty
    View product
Apartments Flue 689X531

Why Keston?

Discover how everything is possible with a Keston.

Why Keston?
  • Training

    Training160X180Px

    We've developed a range of comprehensive training courses utilising both classroom and hands-on learning techniques.

    View Courses
  • Accessories & Controls

    Keston System Filter 160X180

    Our range of accessories and controls ensure you get maximum performance and efficiency from your Keston boiler.

    View the range