Fuel Factor Selection for TER Calculation

The fuel factor used to calculate the TER should be taken from Table 2.1 as follows – (a) where all space heating appliances and domestic hot water heating appliances are served by the same fuel, the fuel used in those appliances; (b) where the dwelling has more than one appliance for space heating and/or hot water and these are served by different fuels, the fuel should be taken to be mains gas if any of the appliances are served by mains gas. In any other circumstances, the fuel used should be taken to be the fuel used by the main space heating system; and (c) where the dwelling is served by a community heating scheme, the fuel should be taken to be mains gas if the community heating scheme uses mains gas for any purpose. In any other circumstances the fuel should be taken to be the fuel that provides the most heat to the community scheme.