The Energy-related Product Directive (ErP) is a wide ranging piece of EU legislation that aims to reduce emissions in Europe through improving the labelling and efficiency of a wide range of appliances from lighting to refrigerators. It has now been in force for a number of years having first been passed in 2009 but various provisions have come into force at later dates. These include Regulation 813/2013 that sets out requirements for the eco design of space heaters and combination heaters.