GB 20665-2015- MEPS for Domestic Gas Instantaneous Water Heaters and Gas Fired Heating and Hot Water Combi-Boilers

Last updated: 17 May 2021

The standards specifies the minimum allowable values of energy efficiency, energy efficiency grades, energy conservation evaluation value,test methods and inspection rules for domestic gas instantaneous water heater, and gas fired heating and hot water combi-boilers.


The standard is only applicable to water heaters and gas-powered heating furnaces up to 70kW.



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