Keston • Combi • Gas Fuel
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The Keston Thermomatic RSM20FB has a 78.1% efficiency rating.
The Keston Thermomatic RSM20FB is a Combi boiler with a maximum power output of 23 - 23 (KW) that uses Gas as its fuel source.
This boiler will provide efficient heating and subsequently reduce fuel bills and carbon dioxide emissions. Potential annual savings compared to older boilers: £50-£200.
Why the Keston Thermomatic RSM20FB is an excellent choice for your home
78.1% efficiency rating for maximum energy savings
Reduce your energy bills by up to £50-£200 annually
Keston quality with comprehensive warranty
Built to last with modern condensing technology
Discover other efficient boilers you might be interested in
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