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Grant - 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.

Grant Boilers

ModelTypeFuelEfficiencyMore Info
Grant Combi 90 Mk II Non-Condensing Oil 82.9% More Info
Grant Combi 70 Mk II Non-Condensing Oil 82.5% More Info
Grant Combi 70 V3 Non-Condensing Oil 82.5% More Info
Grant Combi 90 V3 Non-Condensing Oil 82.7% More Info
Grant Combi Max Non-Condensing Oil 82.2% More Info
Grant Euroflame Kitchen / Utility 70-90 Non-Condensing Oil 85.3% More Info
Grant Euroflame Kitchen / Utility 50-70 Non-Condensing Oil 85.3% More Info
Grant Euroflame Outdoor Module 50-70 Non-Condensing Oil 85.3% More Info
Grant Euroflame System 50-90 Non-Condensing Oil 85.3% More Info
Grant Euroflame Boilerhouse 50-70 Non-Condensing Oil 85.3% More Info
Grant Euroflame Boilerhouse 70-90 Non-Condensing Oil 85.3% More Info
Grant Euroflame Outdoor Module 70-90 Non-Condensing Oil 85.3% More Info
Grant Euroflame Kitchen/Utility 90-120 Non-Condensing Oil 85.2% More Info
Grant Euroflame 90-120 Outdoor Non-Condensing Oil 85.2% More Info
Grant Euroflame 90-120 System Kitchen Utility Non-Condensing Oil 85.2% More Info
Grant Euroflame 90-120 Boilerhouse Non-Condensing Oil 85.2% More Info
Grant Euroflame Condensing Boilerhouse 50-70 Condensing Oil 93.0% More Info
Grant Euroflame Condensing Indoor 50-70 Condensing Oil 93.0% More Info
Grant Euroflame Condensing Module 50-70 Condensing Oil 93.0% More Info
Grant Euroflame Condensing Module 70-90 Condensing Oil 92.4% More Info
Grant Euroflame Condensing Boilerhouse 70-90 Condensing Oil 92.4% More Info
Grant Euroflame Condensing Indoor 70-90 Condensing Oil 92.4% More Info
Grant Euroflame Condensing Module 90-120 Condensing Oil 92.1% More Info
Grant Euroflame Condensing Boilerhouse 90-120 Condensing Oil 92.1% More Info
Grant Euroflame Condensing Indoor 90-120 Condensing Oil 92.1% More Info
Grant Multipass Boilerhouse 110-140 Non-Condensing Oil 85.7% More Info
Grant Multipass Boilerhouse 70-90 Non-Condensing Oil 85.7% More Info
Grant Multipass Kitchen 70-90 Non-Condensing Oil 85.7% More Info
Grant Multipass Boilerhouse 90-110 Non-Condensing Oil 85.7% More Info
Grant Multipass System 50-70 Non-Condensing Oil 85.7% More Info
Grant Multipass Outdoor 110-140 Non-Condensing Oil 85.7% More Info
Grant Multipass System 110-140 Non-Condensing Oil 85.7% More Info
Grant Multipass System 90-110 Non-Condensing Oil 85.7% More Info
Grant Multipass System 70-90 Non-Condensing Oil 85.7% More Info
Grant Multipass Boilerhouse 140-160 Non-Condensing Oil 85.7% More Info
Grant Multipass Kitchen 160-200 Non-Condensing Oil 85.7% More Info
Grant Multipass Kitchen 50-70 Non-Condensing Oil 85.7% More Info
Grant Multipass Kitchen 140-160 Non-Condensing Oil 85.7% More Info
Grant Multipass Kitchen 90-110 Non-Condensing Oil 85.7% More Info
Grant Multipass Kitchen 110-140 Non-Condensing Oil 85.7% More Info
Grant Multipass Boilerhouse 160-200 Non-Condensing Oil 85.7% More Info
Grant Outdoor Combi Mk II Non-Condensing Oil 82.9% More Info
Grant Outdoor Combi 90 V3 Non-Condensing Oil 82.7% More Info
Grant Outdoor Combi Max Non-Condensing Oil 82.2% More Info
Grant Vortex 26-36-S Utility System Boiler Condensing Oil 97.0% More Info
Grant Vortex 26-36 Utility Boiler Condensing Oil 97.0% More Info
Grant Vortex 36 Condensing Oil 97.0% More Info
Grant Vortex 36S Condensing Oil 97.0% More Info
Grant Vortex Outdoor Module 26-36 Condensing Oil 97% More Info
Grant Vortex 26 S Condensing Oil 95.0% More Info
Grant Vortex 15-26 Kitchen Boiler Condensing Oil 95.0% More Info
Grant Vortex Utility System 15-26S Condensing Oil 95.0% More Info
Grant Vortex 15-26S Kitchen Boiler Condensing Oil 95.0% More Info
Grant Vortex Utility 15-26 Condensing Oil 95.0% More Info
Grant Vortex Outdoor Module 15-26 Condensing Oil 95.0% More Info
Grant Vortex 26 Condensing Oil 95% More Info
Grant Vortex 20 Condensing Oil 94.6% More Info
Grant Vortex 20 S Condensing Oil 94.6% More Info
Grant Vortex Outdoor Condensing Combi 36 Condensing Oil 94.2% More Info
Grant Vortex Utility 46-58 Condensing Oil 94.1% More Info
Grant Vortex 15 Condensing Oil 94.0% More Info
Grant Vortex 15 S Condensing Oil 94.0% More Info
Grant Vortex Utility 58-70 Condensing Oil 93.6% More Info
Grant Vortex Outdoor Module 36-46 Condensing Oil 92.6% More Info
Grant Vortex Utility 36-46 Condensing Oil 92.6% More Info
Grant Vortex Utility System 36-46S Condensing Oil 92.6% More Info
Grant Vortex Outdoor Condensing Combi 26 Condensing Oil 92.2% More Info
Grant Vortex 20G Boilerhouse Condensing Oil 96.1% More Info
Grant Vortex 20G Boilerhouse System Condensing Oil 96.1% More Info
Grant Vortex 20G Outdoor Module Condensing Oil 96.1% More Info
Grant Vortex 20G Outdoor Module System Condensing Oil 96.1% More Info
Grant Vortex 20G Utility Condensing Oil 96.1% More Info
Grant Vortex 20G Utility System Condensing Oil 96.1% More Info
Grant Vortex 26-36 Boilerhouse Condensing Oil 97% More Info
Grant Vortex 26-36 Boilerhouse System Condensing Oil 97.2% More Info
Grant Vortex 26-36 Outdoor Module System Condensing Oil 97% More Info
Grant Vortex 30G Boilerhouse Condensing Oil 95.6% More Info
Grant Vortex 30G Boilerhouse System Condensing Oil 95.6% More Info
Grant Vortex 30G Outdoor Module Condensing Oil 95.6% More Info
Grant Vortex 30G Outdoor Module System Condensing Oil 95.6% More Info
Grant Vortex 30G Utility Condensing Oil 95.6% More Info
Grant Vortex 30G Utility System Condensing Oil 95.6% More Info
Grant Vortex Condensing Combi 36 Condensing Oil 94.2% More Info
Grant Vortex Condensing Combi 26 Condensing Oil 92.2% More Info
Grant Vortex Condensing Combi 21 Condensing Oil 90.2% More Info
Grant Vortex Eco Utility 15-21 Condensing Oil 93.0% More Info
Grant Vortex Eco External 15-21 Condensing Oil 93.0% More Info
Grant Vortex Eco External 21-26 Condensing Oil 92.4% More Info
Grant Vortex Eco Utility 21-26 Condensing Oil 92.4% More Info
Grant Vortex Eco Utility 26-35 Condensing Oil 92.1% More Info
Grant Vortex Eco External 26-35 Condensing Oil 92.1% More Info
Grant Vortex Eco Wall Hung 12-16 Condensing Oil 94.9% More Info
Grant Vortex Eco Wall Hung 16-21 Condensing Oil 93.8% More Info
Grant Vortex Eco Wall Hung External 12-16 Condensing Oil 94.9% More Info
Grant Vortex Eco Wall Hung External 16-21 Condensing Oil 93.8% More Info
Grant Vortex Eco Wall Hung External System 12-16 Condensing Oil 94.9% More Info
Grant Vortex Eco Wall Hung External System 16-21 Condensing Oil 93.8% More Info
Grant Vortex Eco Wall Hung System 12-16 Condensing Oil 94.9% More Info
Grant Vortex Eco Wall Hung System 16-21 Condensing Oil 93.8% More Info
Grant Vortex Outdoor Combi 21 Condensing Oil 90.2% More Info
Grant Vortex Outdoor Module 15-21 Condensing Oil 93% More Info
Grant Vortex Pro Boilerhouse 36-46 Condensing Oil 92.6% More Info
Grant Vortex Pro Boilerhouse 46-58 Condensing Oil 94.1% More Info
Grant Vortex Pro Boilerhouse 58-70 Condensing Oil 93.6% More Info
Grant Vortex Pro External 46-58 Condensing Oil 94.1% More Info
Grant Vortex Pro External 58-70 Condensing Oil 93.6% More Info
Grant Vortex Utility 15-21 Condensing Oil 93% More Info