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Glossary

‘Local space heater’ - a space heating device that emits heat by direct heat transfer or by direct heat transfer in combination with heat transfer to a fluid, in order to reach and maintain a certain level of human thermal comfort within an enclosed space in which the product is situated, possibly combined with a heat output to other spaces and is equipped with one or more heat generators that convert electricity or gaseous or liquid fuels directly into heat, through use of the Joule effect or combustion of fuels respectively.

‘Product groups’ - all energy-related products (excepting all means of transport) which:

  • have a volume of sales and trade more than 200,000 units per year all over Europe
  • have a significant impact on the environment
  • have a high potential for improvements in terms of their environmental impact

The criteria for selection of product groups for delegated acts under the Labelling Directive are similar:

  • considering the quantities placed on the Union market, the products shall have a significant potential for saving energy and, where relevant, other essential resources,
  • products with equivalent functionality available on the market shall have a wide disparity in the relevant performance levels.

‘Electrical fixed local space heaters’ – an electric local space heater that is not designed to accumulate thermal energy, but must be in a fixed position, fastened or secured in a specific location but not incorporated in the building structure or building finishing.

 ‘Electrical portable local space heaters’ – any electrical space heater which is not in a fixed position, such as electric storage heaters, electric underfloor, fixed electric radiant heater, visibly glowing heater or a slave heater.

‘Electrical radiant local space heater’ – an electrical local space heater in which the heating element is to be directed towards the place of use so the thermal radiation directly warms the subjects to be heated and which has a temperature rise of the grill covering the heat emitting element of at least 130˚C in normal use and/or a temperature rise of 100˚C for other surfaces.

‘Electrical storage local space heater’ – an electrical local space heater that is designed to store heat in an accumulating isolated core and to discharge it for several hours after the accumulation phase.

‘Electrical underfloor local space heater’ – an electrical local space heater designed to be used while incorporated in the building structure of building finishing. An example is the DTW range of electrical underfloor heating mats. A full list of these products affected can be found in appendix A.

‘Electrical visibly glowing radiant local space heater’ – an electrical local space heater in which the heating element is visible from the outside of the heater and has a temperature of at least 650˚C in normal use.

‘Slave heaters’ – an electric local space heater which is not capable of autonomous operation and needs to receive signals sent from an external master controller, connected by pilot wire, wireless, power line communication, or an equivalent technique.

Minimum efficiency calculation:

 ηs  = ηs,on – 10 % + F(1) + F(2) + F(3) – F(4)

        ηs          Seasonal space heating efficiency of non-commercial local space heaters

ηs,on     Seasonal space heating energy efficiency in active mode (%), this is calculated as 40% across the board to represent the energy efficiency based on the electricity generation process

F(1)     Correction factor accounting for positive contribution to seasonal space heating energy efficiency due to adjusted contributions for heat storage and output (%)

F(2)     Correction factor accounting for a positive contribution to the seasonal space heating energy efficiency due to adjusted contributions of controls,  these are mutually exclusive and cannot be added together (%)

F(3)     Correction factor accounting for a positive contribution to the seasonal space heating energy efficiency due to adjusted contributions of controls that can be added together (%)

F(4)     Correction factor accounting for a negative contribution to the seasonal space heating energy efficiency by auxiliary electricity consumption (%)