Ferroli • Conventional • Gas Fuel
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The Ferroli Sigma 20-40 has a 78.2% efficiency rating.
The Ferroli Sigma 20-40 is a Conventional boiler with a maximum power output of 5.5 - 11.7 (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 Ferroli Sigma 20-40 is an excellent choice for your home
78.2% efficiency rating for maximum energy savings
Reduce your energy bills by up to £50-£200 annually
Ferroli quality with comprehensive warranty
Built to last with modern condensing technology
Discover other efficient boilers you might be interested in
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