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Grant Multipass Boilerhouse 90-110 Oil - 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.

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Grant Multipass Boilerhouse 90-110 Efficiency

SAP seasonal efficiency85.7%
Rating bandBand C


ManufacturerGrant Boilers
ModelMultipass Boilerhouse 90-110
Fuel TypeOil
Flue TypeRoom-Sealed
FanFan Assisted
Output (kW)26.37 - 32.24
Boiler ID
Manufactured From/To1994 - current


The Grant Multipass Boilerhouse 90-110 is a 'C' rated boiler with an efficiency of 85.7%.

The Multipass Boilerhouse 90-110 is a Non-Condensing Conventional boiler with a maximum power output of 32.24kw that uses Oil as its fuel source.

Although a 'C' rated boiler is not as efficient as many other modern boilers it's still pretty good, only a marginal reduction in fuel bills and carbon dioxide emissions would be observed by replacing it.

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