Mistral Boilers Boilers Boiler Efficiency Rating, Repair & Service Model Type Fuel Efficiency Mistral Boilers CBH5 41/50 Condensing Oil 90.4% Mistral Boilers CBH6 50/58 Condensing Oil 90.4% Mistral Boilers CBH7 58/68 Condensing Oil 90.4% Mistral Boilers CKUT5 41/50 Condensing Oil 90.4% Mistral Boilers CKUT6 50/58 Condensing Oil 90.4% Mistral Boilers CKUT7 58/68 Condensing Oil 90.4% Mistral Boilers CMC5 41/50 Condensing Oil 88.7% Mistral Boilers CMC6 50/58 Condensing Oil 88.7% Mistral Boilers CMC7 58/68 Condensing Oil 88.7% Mistral Boilers COD5 41/50 Condensing Oil 90.4% Mistral Boilers COD5 SS 41/50 Condensing Oil 90.4% Mistral Boilers COD6 50/58 Condensing Oil 90.4% Mistral Boilers COD6 SS 50/58 Condensing Oil 90.4% Mistral Boilers COD7 58/68 Condensing Oil 90.4% Mistral Boilers COD7 SS 58/68 Condensing Oil 90.4% Mistral Boilers CODMC5 41/50 Condensing Oil 88.7% Mistral Boilers CODMC6 50/58 Condensing Oil 88.7% Mistral Boilers CODMC7 58/68 Condensing Oil 88.7% Mistral Boilers CS5 41/50 Condensing Oil 90.4% Mistral Boilers CS6 50/58 Condensing Oil 90.4% Mistral Boilers CS7 58/68 Condensing Oil 90.4% 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