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Mistral - Boiler Efficiency Ratings

Boiler Efficiency Rating

You can find out the energy efficiency of your boiler by checking its energy rating; you can do this now by selecting the make and model below.

A boiler’s energy rating is an indicator of its efficiency when used within an average domestic household. It's a great benchmark for comparing new boilers and can help you work out how much money you could save on energy bills if you replaced your current boiler with a more efficient model.

For new boiler installations call British Gas Boilers on 0333 230 5216 for a no-obligation quote. Alternatively visit Boiler Guide to request quotes from independent local and regional heating engineers.

Mistral Boilers

ModelTypeFuelEfficiencyMore Info
Mistral BH 1 50/70 Non-Condensing Oil 85.7% More Info
Mistral BH 2 70/90 Non-Condensing Oil 85.7% More Info
Mistral BH 50/90 Contract Non-Condensing Oil 85.7% More Info
Mistral BH 90/150 Contract Non-Condensing Oil 85.7% More Info
Mistral BH1-5070 Boiler House Non-Condensing Oil 83.4% More Info
Mistral BH2-7090 Boiler House Non-Condensing Oil 83.4% More Info
Mistral BH3 90/120 Non-Condensing Oil 85.7% More Info
Mistral BH3-9012 Boiler House Non-Condensing Oil 84.9% More Info
Mistral BH4 120/150 Non-Condensing Oil 85.7% More Info
Mistral BH4-1215 Boiler House Non-Condensing Oil 84.9% More Info
Mistral C 50/90 Plus Non-Condensing Oil 82.9% More Info
Mistral C 50/90 Standard Contract Non-Condensing Oil 82.9% More Info
Mistral C 90/150 Contract Non-Condensing Oil 82.9% More Info
Mistral C 90/150 Plus Contract Non-Condensing Oil 82.9% More Info
Mistral C1 50/70 Plus Non-Condensing Oil 82.9% More Info
Mistral C1 50/70 Standard Non-Condensing Oil 82.9% More Info
Mistral C1-5070 Combi Non-Condensing Oil 80.6% More Info
Mistral C2 70/90 Plus Non-Condensing Oil 82.9% More Info
Mistral C2 70/90 Standard Non-Condensing Oil 82.9% More Info
Mistral C2-7090 Combi Non-Condensing Oil 80.6% More Info
Mistral C3 90/120 Plus Non-Condensing Oil 82.9% More Info
Mistral C3 90/120 Standard Non-Condensing Oil 85.7% More Info
Mistral C3-9012 Mega Combi Non-Condensing Oil 82.1% More Info
Mistral C4 120/150 Plus Non-Condensing Oil 82.9% More Info
Mistral C4 120/150 Standard Non-Condensing Oil 82.9% More Info
Mistral C4-1215 Mega Combi Non-Condensing Oil 82.1% More Info
Mistral CBH - 5070 Boiler House Condensing Oil 92.5% More Info
Mistral CBH - 7090 Boiler House Condensing Oil 92.5% More Info
Mistral CBH 15/26 Contract Condensing Oil 92.8% More Info
Mistral CBH 26/40 Contract Condensing Oil 93.0% More Info
Mistral CBH1 15/20 Condensing Oil 92.8% More Info
Mistral CBH2 20/26 Condensing Oil 92.8% More Info
Mistral CBH3 - 9012 Boiler House Condensing Oil 91.4% More Info
Mistral CBH3 26/35 Condensing Oil 93.0% More Info
Mistral CBH4 - 1215 Boiler House Condensing Oil 91.4% More Info
Mistral CBH4 35/40 Condensing Oil 93.0% More Info
Mistral CC 15/26 Plus Contract Condensing Oil 90.0% More Info
Mistral CC 15/26 Std Contract Condensing Oil 90.0% More Info
Mistral CC 26/40 plus contract Condensing Oil 90.2% More Info
Mistral CC 26/40 Std Contract Condensing Oil 90.2% More Info
Mistral CC1 - 5070 Condensing Combi Condensing Oil 89.7% More Info
Mistral CC1 15/20 Plus Condensing Oil 90.0% More Info
Mistral CC1 15/20 Std Condensing Oil 90.0% More Info
Mistral CC2 - 7090 Condensing Combi Condensing Oil 89.7% More Info
Mistral CC2 20/26 Plus Condensing Oil 90.0% More Info
Mistral CC2 20/26 Std Condensing Oil 90.0% More Info
Mistral CC3 - 9012 Combi Condensing Oil 88.6% More Info
Mistral CC3 26/35 plus Condensing Oil 90.2% More Info
Mistral CC3 26/35 Std Condensing Oil 90.2% More Info
Mistral CC4 - 1215 Combi Condensing Oil 88.6% More Info
Mistral CC4 35/40 plus Condensing Oil 90.2% More Info
Mistral CC4 35/40 Std Condensing Oil 90.2% More Info
Mistral CK 3 - 9012 Kitchen Condensing Oil 91.4% More Info
Mistral CK1 - 5070 Kitchen Condensing Oil 92.5% More Info
Mistral CK2 - 7090 Kitchen Condensing Oil 92.5% More Info
Mistral CK4 - 1215 Kitchen Condensing Oil 91.4% More Info
Mistral CKUT 15/26 Contract Condensing Oil 92.8% More Info
Mistral CKUT 26/40 Contract Condensing Oil 93.0% More Info
Mistral CKUT 3 - 9012 Kitchen Utility Condensing Oil 91.4% More Info
Mistral CKUT1 - 5070 Kitchen Utility Condensing Oil 92.5% More Info
Mistral CKUT1 15/20 Condensing Oil 92.8% More Info
Mistral CKUT2 - 7090 Kitchen Utility Condensing Oil 92.5% More Info
Mistral CKUT2 20/26 Condensing Oil 92.8% More Info
Mistral CKUT3 26/35 Condensing Oil 93.0% More Info
Mistral CKUT4 - 1215 Kitchen Utility Condensing Oil 91.4% More Info
Mistral CKUT4 35/40 Condensing Oil 93.0% More Info
Mistral COD - 5070 Outdoor Model Condensing Oil 92.5% More Info
Mistral COD - 7090 Outdoor Model Condensing Oil 92.5% More Info
Mistral COD - C - 5070 Outdoor Combi Condensing Oil 89.7% More Info
Mistral COD - C - 7090 Outdoor Combi Condensing Oil 89.7% More Info
Mistral COD - SS - 5070 Outdoor Sealed System Condensing Oil 92.5% More Info
Mistral COD - SS - 7090 Outdoor Sealed System Condensing Oil 92.5% More Info
Mistral COD 15/26 Contract Condensing Oil 92.8% More Info
Mistral COD 26/40 Contract Condensing Oil 93.0% More Info
Mistral COD SS 15/26 Contract Condensing Oil 92.8% More Info
Mistral COD1 15/20 Condensing Oil 92.8% More Info
Mistral COD1 SS 15/20 Condensing Oil 92.8% More Info
Mistral COD2 20/26 Condensing Oil 92.8% More Info
Mistral COD2 SS 20/26 Condensing Oil 92.8% More Info
Mistral COD3 - 9012 Outdoor Condensing Oil 91.4% More Info
Mistral COD3 - C - 9012 Outdoor Combi Condensing Oil 88.6% More Info
Mistral COD3 - SS - 9012 Outdoor Sealed System Condensing Oil 91.4% More Info
Mistral COD3 26/35 Condensing Oil 93.0% More Info
Mistral COD4 - 1215 Outdoor Condensing Oil 91.4% More Info
Mistral COD4 - C - 1215 Outdoor Combi Condensing Oil 88.6% More Info
Mistral COD4 - SS - 1215 Outdoor Sealed System Condensing Oil 91.4% More Info
Mistral COD4 35/40 Condensing Oil 93.0% More Info
Mistral CODC 15/26 Plus Contract Condensing Oil 90.0% More Info
Mistral CODC 15/26 Std Contract Condensing Oil 90.0% More Info
Mistral CODC 26/40 plus contract Condensing Oil 90.2% More Info
Mistral CODC 26/40 Std Contract Condensing Oil 90.2% More Info
Mistral CODC1 15/20 Plus Condensing Oil 90.0% More Info
Mistral CODC2 20/26 Plus Condensing Oil 90.0% More Info
Mistral CODC2 20/26 Std Condensing Oil 90.0% More Info
Mistral CODC3 26/35 plus Condensing Oil 90.2% More Info
Mistral CODC3 26/35 Std Condensing Oil 90.2% More Info
Mistral CODC4 35/40 plus Condensing Oil 90.2% More Info
Mistral CODC4 35/40 Std Condensing Oil 90.2% More Info
Mistral CODSS 26/40 Contract Condensing Oil 93.0% More Info
Mistral CODSS 3 26/35 Condensing Oil 93.0% More Info
Mistral CODSS 4 35/40 Condensing Oil 93.0% More Info
Mistral CS 15/26 Contract Condensing Oil 92.8% More Info
Mistral CS 26/40 Contract Condensing Oil 93.0% More Info
Mistral CS1 - 5070 Sealed System Condensing Oil 92.5% More Info
Mistral CS1 15/20 Condensing Oil 92.8% More Info
Mistral CS2 - 7090 Sealed System Condensing Oil 92.5% More Info
Mistral CS2 20/26 Condensing Oil 92.8% More Info
Mistral CS3 - 9012 Sealed System Condensing Oil 91.4% More Info
Mistral CS3 26/35 Condensing Oil 93.0% More Info
Mistral CS4 - 1215 Sealed System Condensing Oil 91.4% More Info
Mistral CS4 35/40 Condensing Oil 93.0% More Info
Mistral K1-5070 Kitchen Non-Condensing Oil 83.4% More Info
Mistral K2-7090 Kitchen Non-Condensing Oil 83.4% More Info
Mistral K3-9012 Kitchen Non-Condensing Oil 84.9% More Info
Mistral K4-1215 Kitchen Non-Condensing Oil 84.9% More Info
Mistral KUT 1 50/70 Non-Condensing Oil 85.7% More Info
Mistral KUT 2 70/90 Non-Condensing Oil 85.7% More Info
Mistral KUT 50/90 Contract Non-Condensing Oil 85.7% More Info
Mistral KUT 90/150 Contract Non-Condensing Oil 85.7% More Info
Mistral KUT1 5070 Kitchen Utility Non-Condensing Oil 83.4% More Info
Mistral KUT2-7090 Kitchen Utility Non-Condensing Oil 83.4% More Info
Mistral KUT3 90/120 Non-Condensing Oil 85.7% More Info
Mistral KUT3-9012 Kitchen Utility Non-Condensing Oil 84.9% More Info
Mistral KUT4 120/150 Non-Condensing Oil 85.7% More Info
Mistral KUT4-1215 Kitchen Utility Non-Condensing Oil 84.9% More Info
Mistral Lo-Nox BF CBH 1 15/20 Condensing Oil 94.1% More Info
Mistral Lo-Nox BF CBH 2 20/27 Condensing Oil 94.1% More Info
Mistral Lo-Nox BF CBH 3 27/35 Condensing Oil 94.1% More Info
Mistral Lo-Nox BF CBH 4 35/42 Condensing Oil 94.1% More Info
Mistral Lo-Nox BF CC1 15/20 Condensing Oil 91.3% More Info
Mistral Lo-Nox BF CC1 Plus 15/20 Condensing Oil 91.3% More Info
Mistral Lo-Nox BF CC2 20/27 Condensing Oil 91.3% More Info
Mistral Lo-Nox BF CC2 Plus 20/27 Condensing Oil 91.3% More Info
Mistral Lo-Nox BF CC3 27/35 Condensing Oil 91.3% More Info
Mistral Lo-Nox BF CC3 Plus 27/35 Condensing Oil 91.3% More Info
Mistral Lo-Nox BF CC4 35/42 Condensing Oil 91.3% More Info
Mistral Lo-Nox BF CC4 Plus 35/42 Condensing Oil 91.3% More Info
Mistral Lo-Nox BF CKUT 1 15/20 Condensing Oil 94.1% More Info
Mistral Lo-Nox BF CKUT 2 20/27 Condensing Oil 94.1% More Info
Mistral Lo-Nox BF CKUT 3 27/35 Condensing Oil 94.1% More Info
Mistral Lo-Nox BF CKUT 4 35/42 Condensing Oil 94.1% More Info
Mistral Lo-Nox BF COD1 15/20 Condensing Oil 94.1% More Info
Mistral Lo-Nox BF COD2 20/27 Condensing Oil 94.1% More Info
Mistral Lo-Nox BF COD3 27/35 Condensing Oil 94.1% More Info
Mistral Lo-Nox BF COD4 35/42 Condensing Oil 94.1% More Info
Mistral Lo-Nox BF CODC1 15/20 Condensing Oil 91.3% More Info
Mistral Lo-Nox BF CODC1 Plus 15/20 Condensing Oil 91.3% More Info
Mistral Lo-Nox BF CODC2 20/27 Condensing Oil 91.3% More Info
Mistral Lo-Nox BF CODC2 Plus 20/27 Condensing Oil 91.3% More Info
Mistral Lo-Nox BF CODC3 27/35 Condensing Oil 91.3% More Info
Mistral Lo-Nox BF CODC3 Plus 27/35 Condensing Oil 91.3% More Info
Mistral Lo-Nox BF CODC4 35/42 Condensing Oil 91.3% More Info
Mistral Lo-Nox BF CODC4 Plus 35/42 Condensing Oil 91.3% More Info
Mistral Lo-Nox BF CODSS1 15/20 Condensing Oil 94.1% More Info
Mistral Lo-Nox BF CODSS2 20/27 Condensing Oil 94.1% More Info
Mistral Lo-Nox BF CODSS3 27/35 Condensing Oil 94.1% More Info
Mistral Lo-Nox BF CODSS4 35/42 Condensing Oil 94.1% More Info
Mistral Lo-Nox BF CS1 15/20 Condensing Oil 94.1% More Info
Mistral Lo-Nox BF CS2 20/27 Condensing Oil 94.1% More Info
Mistral Lo-Nox BF CS3 27/35 Condensing Oil 94.1% More Info
Mistral Lo-Nox BF CS4 35/42 Condensing Oil 94.1% More Info
Mistral OD 1 50/70 Non-Condensing Oil 85.7% More Info
Mistral OD 2 70/90 Non-Condensing Oil 85.7% More Info
Mistral OD 50/90 Non-Condensing Oil 85.7% More Info
Mistral OD 90/150 Contract Non-Condensing Oil 85.7% More Info
Mistral OD C1 50/70 Plus Non-Condensing Oil 82.9% More Info
Mistral OD SS 50/90 Contract Non-Condensing Oil 85.7% More Info
Mistral OD SS 90/150 Contract Non-Condensing Oil 85.7% More Info
Mistral OD-C1-5070 Outdoor Combi Non-Condensing Oil 80.6% More Info
Mistral OD-C2-7090 Outdoor Combi Non-Condensing Oil 80.6% More Info
Mistral OD1 SS 50/70 Non-Condensing Oil 85.7% More Info
Mistral OD1-5070 Outdoor Non-Condensing Oil 83.4% More Info
Mistral OD1-SS-5070 Outdoor Sealed System Non-Condensing Oil 83.4% More Info
Mistral OD2 SS 70/90 Non-Condensing Oil 85.7% More Info
Mistral OD2-7090 Outdoor Non-Condensing Oil 83.4% More Info
Mistral OD2-SS-7090 Outdoor Sealed System Non-Condensing Oil 83.4% More Info
Mistral OD3 90/120 Non-Condensing Oil 85.7% More Info
Mistral OD3 SS 90/120 Non-Condensing Oil 85.7% More Info
Mistral OD3-9012 Outdoor Model Non-Condensing Oil 84.9% More Info
Mistral OD3-C-9012 Outdoor Mega Combi Non-Condensing Oil 82.1% More Info
Mistral OD3-SS-9012 Outdoor Sealed System Non-Condensing Oil 84.9% More Info
Mistral OD4 - 1215 Outdoor Model Non-Condensing Oil 84.9% More Info
Mistral OD4 120/150 Non-Condensing Oil 85.7% More Info
Mistral OD4 SS 120/150 Non-Condensing Oil 85.7% More Info
Mistral OD4-C-1215 Outdoor Mega Combi Non-Condensing Oil 82.1% More Info
Mistral OD4-SS-1215 Outdoor Sealed System Non-Condensing Oil 84.9% More Info
Mistral ODC 3 90/120 Plus Non-Condensing Oil 82.9% More Info
Mistral ODC 50/90 Plus Contract Non-Condensing Oil 82.9% More Info
Mistral ODC 50/90 Standard Contract Non-Condensing Oil 82.9% More Info
Mistral ODC 90/150 Plus Non-Condensing Oil 82.9% More Info
Mistral ODC 90/150 Standard Non-Condensing Oil 82.9% More Info
Mistral ODC1 50/70 Standard Non-Condensing Oil 82.9% More Info
Mistral ODC2 70/90 Plus Non-Condensing Oil 82.9% More Info
Mistral ODC2 70/90 Standard Non-Condensing Oil 82.9% More Info
Mistral ODC3 90/120 Standard Non-Condensing Oil 82.9% More Info
Mistral ODC4 120/150 Plus Non-Condensing Oil 82.9% More Info
Mistral ODC4 120/150 Standard Non-Condensing Oil 82.9% More Info
Mistral S1 50/70 Non-Condensing Oil 85.7% More Info
Mistral S1-5070 Sealed System Non-Condensing Oil 83.4% More Info
Mistral S2 70/90 Non-Condensing Oil 85.7% More Info
Mistral S2-7090 Sealed System Non-Condensing Oil 83.4% More Info
Mistral S3 90/120 Non-Condensing Oil 85.7% More Info
Mistral S3-9012 Sealed System Non-Condensing Oil 84.9% More Info
Mistral S4 120/150 Non-Condensing Oil 85.7% More Info
Mistral S4-1215 Sealed System Non-Condensing Oil 84.9% More Info
Mistral SS 50/90 Contract Non-Condensing Oil 85.7% More Info
Mistral SS 90/150 Contract Non-Condensing Oil 85.7% More Info