Gas Energy Efficiency & Energy Labels Understanding the energy efficiency of gas ﬁres and the new EEI labelling (which came into force on January 1st 2018). It is important not to confuse Energy labelling with useful eﬃciency. The useful efficiency is simply the ability for the product to convert the gas energy into heat for your room. Energy labelling takes into account many other considerations. For example: 1. EEI rating is reduced if the product does not have an automatic thermostat.2. EEI rating is reduced if the product does not have automatic timers, either daily or weekly3. EEI rating is reduced if the product does not have distance operation (i.e operated by mobile phone)4. EEI rating is reduced if the product does not have the ability to sense if the window is open in the room of operation.5. EEI rating is INCREASED if the product runs on BIOMASS. These type of products (i.e Pellet stoves) have their energy efficiency inflated by 145% because the fuel is renewable. It is also important to note that: It is impossible* for a gas fire to attain an A++ or A+ rating. It is impossible* for a gas fire to attain an A rating unless it features MOST of the items listed 1 through 4 above. A gas fire can only achieve a B rating WITHOUT the items listed 1 through 4 above providing its’ net efficiency is equal or greater than 91%. It is also important to understand that ALL electric fires are rated at an EEI of G. Electric fires do not have to display this label. *Based on our understanding of the EEI regulations due to come into force on 1st January 2018 and current efficiency ratings of products currently on sale in the UK market-place.