Complete technical details and performance specifications for the Ferroli Sigma 20-40
A J Wells and Sons
A O Smith
ACV
Alde
Alpha
Aquaflame
ARCA
Ariston
ATAG
Atlantic 2000
Atlantic Boilers
Atmos
Baxi
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Beeston
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British / Scottish Gas
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Caradon Ideal
Chaffoteaux
Chaffoteaux et Maury
Charles Portway & Son
Claudio GR (Vokera)
Clyde
Coopra BV
Daikin
DD Heating
De Dietrich
De Dietrich Thermique
Dimplex
E.C.A.
Eco Hometec (UK)
Econoflame
EHC
Elco
ELCO Klockner Heiztechnik
Eurocal
Europa
EUROTERM
Evo
Express
Fagor Electrodomesticos S.Coop
Fer
Fer Industrie
Ferroli
Firebird
Firebird Enviromax
Fonderie Sime
Fondital
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Grant
Halstead
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i
i-mini
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icon Heating
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iQE
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Potterton Myson Heating
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R H Ingham
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sime
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Termet
The White Boiler Company
Thermeco
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Trianco
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Turco
Turkington Engineering
Unical
Vaillant
Viadrus
Viessmann
Vokera
Vokèra BY RIELLO
Warmflow
Warmworld
Wickes
Wolf
Worcester
Yorkpark
The Ferroli Sigma 20-40 delivers exceptional performance with a 78.2% efficiency rating, making it one of the most energy-efficient heating solutions available.
This Conventional boiler provides 5.5 - 11.7 (KW) of reliable heating power using Gas fuel for optimal performance.
Potential annual savings of £50-£200 compared to older, less efficient boilers, while reducing your carbon footprint.
Discover why the Ferroli Sigma 20-40 is the perfect heating solution for your home
78.2% efficiency rating delivers maximum energy savings and optimal performance
Save £50-£200 annually on energy bills compared to older, less efficient boilers
Trusted Ferroli engineering with comprehensive warranty coverage
Built to last with modern condensing technology and premium components
Discover other high-efficiency boilers that might be perfect for your home
Advanced tools designed specifically for the Ferroli Sigma 20-40 to help you make informed decisions
Calculate specific savings with the Ferroli Sigma 20-40, including CO₂ reduction and payback period analysis.
Compare the Ferroli Sigma 20-40 against other boiler models with detailed specifications and performance metrics.
Check if you qualify for a free Ferroli Sigma 20-40 replacement through the government ECO4 scheme.
The Ferroli Sigma 20-40 with its 78.2% efficiency rating is available at no cost through the government ECO4 scheme. Professional installation included with potential savings of £50-£200 annually.
✓ Government Approved ECO4 ✓ Ferroli Authorized ✓ 78.2% Efficiency Rated ✓ Professional Installation
