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Mistral - Boiler Efficiency Ratings

Boiler Efficiency Rating

You can check your boilers rating by selecting it's make and model below. Ratings are based on the SEDBUK Rating which is an indicator of its efficiency when used within an average domestic household, it's a great benchmark for comparing new boilers and also assessing whether your current boiler would be better off being replaced due to low efficiencies.

For new boiler installations call British Gas Boilers on 0800 327 7119 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