Keston System and Combi ranges, ideal for domestic installations with outputs ranging from 30-35kW, will continue to offer a five year warranty. If a Keston 22mm System Filter is also installed and registered with the boiler, the warranty is increased to 7 years. This is a continuation of the warranty offered since the start of 2018, which has proved very popular with homeowners and installers alike.

If a higher output is required, for large domestic or light commercial installations, Keston Heat produces 45kW or 55kW. Powered by natural gas or LPG, 2019 sees this range offered with a two year warranty as standard, which can be upgraded to five years if the boiler is commissioned by Keston.

To make this easier for installers and building owners, installing a Keston 28mm System Filter at the same time as the boiler activates free commissioning. This is applied for via an online form on the Keston website. Only single boiler installations are eligible for free commissioning.

All Keston boilers come with the Twin Flue system which gives maximum flexibility in siting a boiler. With possible flue runs of up to 27 metres, a Keston boiler can be situated in any room, any place, anywhere.

Boilers must be registered with Keston Boilers via the Keston website, Installer Connect (or via the app), or over the telephone (01482 443005) to be eligible for their relevant warranty.

Full terms and conditions and more information on Keston boilers and their range of products can be found on the Keston website. Keston boilers are available from merchants across the UK.