‘heater’ means a space heater or combination heater;

‘space heater’ means a device that

‘combination heater’ means a water-based space heater that is designed to also provide heat to deliver hot drinking or sanitary water at given temperature levels, quantities and flow rates during given intervals, and is connected to an external supply of drinking or sanitary water;

‘package of space heater, temperature control and solar device’ means a package offered to the end-user containing one or more space heaters combined with one or more temperature controls and/or one or more solar devices;

‘package of combination heater, temperature control and solar device’ means a package offered to the end-user containing one or more combination heaters combined with one or more temperature controls, and/or one or more solar devices;

‘solar device’ means a solar-only system, a solar collector, a solar hot water storage tank or a pump in the collector loop, which are placed on the market separately;

‘water-based central heating system’ means a system using water as a heat transfer medium to distribute centrally generated heat to heat emitters for the space heating of buildings, or parts thereof;

‘heat generator’ means the part of a heater that generates the heat using one or more of the following processes:

‘gas heater’ means a space heater or combination heater equipped with one or more heat generators fuelled with gaseous fuels of fossil origin or from biomass;

‘liquid fuel heater’ means a space heater or combination heater equipped with one or more heat generators fuelled with liquid fuels of fossil origin or from biomass;

‘solid fuel heater’ means a space heater or combination heater equipped with one or more heat generators fuelled with solid fuels of fossil origin or from biomass;

‘boiler space heater’ means a space heater that generates heat using the combustion of fossil fuels and/or biomass fuels, and/or using the Joule effect in electric resistance heating elements;

‘gas boiler space heater’ means a boiler space heater equipped with one or more heat generators using the combustion of gaseous fuels of fossil origin or from biomass;

‘liquid fuel boiler space heater’ means a boiler space heater equipped with one or more heat generators using the combustion of liquid fuels of fossil origin or from biomass;

‘solid fuel boiler space heater’ means a boiler space heater equipped with one or more heat generators using the combustion of solid fuels of fossil origin or from biomass;

‘solid biomass boiler space heater’ means a boiler space heater equipped with one or more heat generators using the combustion of solid fuels from biomass;

‘electric boiler space heater’ means a boiler space heater that generates heat using the Joule effect in electric resistance heating elements only;

‘electric boiler combination heater’ means a boiler combination heater that generates heat using the Joule effect in electric resistance heating elements only;

‘heat pump space heater’ means a space heater using ambient heat from an air source, water source or ground source, and/or waste heat for heat generation; a heat pump space heater may be equipped with one or more supplementary heaters using the Joule effect in electric resistance heating elements or the combustion of fossil and/or biomass fuels;

‘heat pump combination heater’ means a heat pump space heater that is designed to also provide heat to deliver hot drinking or sanitary water at given temperature levels, quantities and flow rates during given intervals, and is connected to an external supply of drinking or sanitary water;

‘fuel-driven heat pump heater’ means a heat pump heater equipped with one or more heat generators fuelled with gas or liquid fuel of fossil origin or from biomass;

‘electrically-driven heat pump heater’ means a heat pump heater equipped with one or more heat generators using electricity as a fuel;

‘cogeneration space heater’ means a space heater simultaneously generating heat and electricity in a single process;

‘temperature control’ means equipment that interfaces with the end-user regarding the values and timing of the desired indoor temperature, and communicates relevant data, such as actual indoor and/or outdoor temperature(s), to an interface of the heater such as a central processing unit, thus helping to regulate the indoor temperature(s);

‘seasonal space heating energy efficiency’ (ηs) means the ratio between the space heating demand for a designated heating season, supplied by a heater and the annual energy consumption required to meet this demand, expressed in percentage %;

‘water heating energy efficiency’ (ηwh) means the ratio between the useful energy in the drinking or sanitary water provided by a combination heater and the energy required for its generation, expressed in percentage %;

‘rated heat output’ means the declared heat output of a heater when providing space heating and, if applicable, water heating at standard rating conditions, expressed in kW; for heat pump space heaters and heat pump combination heaters the standard rating conditions for establishing the rated heat output are the reference design conditions, as set out in Commission Regulation (EU) No 813/2013 ( 2 );

‘standard rating conditions’ means the operating conditions of heaters under average climate conditions for establishing the rated heat output, seasonal space heating energy efficiency, water heating energy efficiency, sound power level, nitrogen oxide (NOx) emissions, carbon monoxide (CO) emissions, organic gaseous carbon (OGC) emissions and particulate matter;

‘average climate conditions’ mean the temperature conditions characteristic for the city of Strasbourg;

‘seasonal space heating emissions’ means:

‘global warming potential’ means global warming potential as defined in Article 2(4) of Regulation (EC) No 842/2006 of the European Parliament and of the Council ( 3 );

‘  Nm3 ’ means normal cubic metre (at 101,325 kPa, 273,15 K).