Chaffoteaux et Maury Boilers Boiler Efficiency Rating, Repair & Service Model Type Fuel Efficiency Chaffoteaux et Maury Britony Combi 100 Non-Condensing Gas 78.4% Chaffoteaux et Maury Britony Combi 80 Non-Condensing Gas 76.6% Chaffoteaux et Maury Britony Combi SE100 Atac 28FF Non-Condensing Gas 78.4% Chaffoteaux et Maury Britony Combi SE80 Atac 24FF Non-Condensing Gas 78.7% Chaffoteaux et Maury Britony System 100 Non-Condensing Gas 78.5% Chaffoteaux et Maury Britony System 40 Non-Condensing Gas 76.2% Chaffoteaux et Maury Britony System 60 Non-Condensing Gas 78.9% Chaffoteaux et Maury Britony System II 100 Non-Condensing Gas 78.5% Chaffoteaux et Maury Britony System II 80 Non-Condensing Gas 78.8% Chaffoteaux et Maury Britony System II Plus 100 Non-Condensing Gas 78.5% Chaffoteaux et Maury Britony System II Plus 80 Non-Condensing Gas 78.8% Chaffoteaux et Maury Calydra 100 Non-Condensing Gas 78.4% Chaffoteaux et Maury Calydra 80 Non-Condensing Gas 76.6% Chaffoteaux et Maury Calydra 80 V2 Non-Condensing Gas 78.7% Chaffoteaux et Maury Calydra Comfort 100 Non-Condensing Gas 78.4% Chaffoteaux et Maury Calydra Green 24 Condensing Gas 88.9% Chaffoteaux et Maury Calydra Green 30 Condensing Gas 88.5% Chaffoteaux et Maury Centora Green 18-24 Eurocondens 18-24 Condensing Gas 89.4% Chaffoteaux et Maury Centora Green 24 Condensing Gas 88.9% Chaffoteaux et Maury Centora Green 30 Condensing Gas 88.5% Chaffoteaux et Maury Centora Green System 24 Condensing Gas 89.0% Chaffoteaux et Maury Centora Green System 30 Condensing Gas 88.6% Chaffoteaux et Maury Minima HE 24 Condensing Gas 88.8% Chaffoteaux et Maury Minima HE 30 Condensing Gas 88.8% Chaffoteaux et Maury Minima HE 35 Condensing Gas 89.1% Chaffoteaux et Maury Minima HE System 24 Condensing Gas 88.9% Chaffoteaux et Maury Minima HE System 30 Condensing Gas 88.9% Chaffoteaux et Maury MX2 24 FF LPG Minima Non-Condensing LPG 79.9% Chaffoteaux et Maury MX2 24 FF Minima Non-Condensing Gas 78.1% Chaffoteaux et Maury MX2 30 FF LPG Minima Non-Condensing LPG 81.2% Chaffoteaux et Maury MX2 30 FF Minima Non-Condensing Gas 79.4% Get FREE Boiler Quotes Compare prices today No obligation to buy Visit Boiler Guide to get free quotes from trustworthy heating engineers in your area. Enter postcode Get Quotes