ANNEX IIISupplementary provisions
ANNEX III Measurements and calculations 1. For the purposes of compliance and verification of compliance with the requirements of this Regulation, measurements and calculations shall be made using harmonised standards the reference numbers of which have been published for this purpose in the Official Journal of the European Union , or using other reliable, accurate and reproducible methods that take into account the generally recognised state-of-the-art methods. They shall meet the conditions set out in points 2 to 5. 2. General conditions for measurements and calculations (a) Solid fuel local space heaters shall be tested for the preferred fuel and any other suitable fuels indicated in Table 1 of Annex II. (b) Declared values for nominal heat output and seasonal space heating energy efficiency shall be rounded to the nearest one decimal place. (c) Declared values for emissions shall be rounded to the nearest integer. 3. General conditions for seasonal space heating energy efficiency (a) The seasonal space heating energy efficiency ( η S ) shall be calculated as the seasonal space heating energy efficiency in active mode ( η S,on ), corrected by contributions accounting for heat output control, auxiliary electricity consumption and permanent pilot flame energy consumption. (b) The consumption of electricity shall be multiplied by a conversion coefficient ( CC ) of 2,5. 4. General conditions for emissions (a) For solid fuel local space heaters, the measurement shall take account of emissions of particulate matter (PM), organic gaseous compounds (OGC), carbon monoxide (CO) and nitrogen oxides (NO x ), measured simultaneously with each other and with space heating energy efficiency, except for PM if method 4(a)(i)(2) or 4(a)(i)(3) is used. (i) Three methods are allowed for measuring PM emissions, each with its own requirements, only one of the methods needs to be used: (1) PM measurement by sampling a partial dry flue gas sample over a heated filter. PM measurement as measured in the combustion products of the appliance shall be carried out while the product is providing its nominal output and if appropriate at part load; (2) PM measurement by sampling, over the full burn cycle, a partial flue gas sample, using natural draft, from a diluted flue gas using a full flow dilution tunnel and a filter at ambient temperature; (3) PM measurement by sampling, over a 30-minute period, a partial flue gas sample, using a fixed flue draft at 12 Pa, from a diluted flue gas using a full flow dilution tunnel and a filter at ambient temperature or an electrostatic precipitator. (ii) OGC measurement as measured in the combustion products of the appliance shall be extractive and continuous and be based on the use of a flame ionisation detector. The result obtained is expressed in milligrams of carbon. OGC measurement as measured in the combustion products of the appliance shall be carried out while the product is providing its nominal output and if appropriate at part load. (iii) CO measurement as measured in the combustion products of the appliance shall be extractive and continuous and be based on the use of an infrared detector. CO measurement as measured in the combustion products of the appliance shall be carried out while the product is providing its nominal output and if appropriate at part load. (iv) NO x measurement as measured in the combustion products of the appliance shall be extractive and continuous and be based on chemiluminescent detection. Emissions of nitrogen oxides shall be measured as the sum of nitrogen monoxide and nitrogen dioxide, and expressed in nitrogen dioxide. NO x measurement as measured in the combustion products of the appliance shall be carried out while the product is providing its nominal output and if appropriate at part load. (b) Declared values for nominal heat output, seasonal space heating energy efficiency and emissions shall be rounded to the nearest integer. 5. Specific conditions for seasonal space heating energy efficiency (a) The seasonal space heating energy efficiency of solid fuel local space heaters is defined as: η S = η S,on – 10% + F (2) + F (3) – F (4) – F (5) Where: — η S,on is the seasonal space heating energy efficiency in active mode, expressed in %, calculated as set out in point 5(b), — F (2) is a correction factor accounting for a positive contribution to the seasonal space heating energy efficiency due to adjusted contributions of controls of indoor heating comfort, the values of which are mutually exclusive, cannot be added to each other, expressed in %, — F (3) is a correction factor accounting for a positive contribution to the seasonal space heating energy efficiency due to adjusted contributions of controls for indoor heating comfort the values of which can be added to each other, expressed in %, — F (4) is a correction factor accounting for a negative contribution to the seasonal space heating energy efficiency by auxiliary electricity consumption, expressed in %, — F (5) is a correction factor accounting for a negative contribution to the seasonal space heating energy efficiency by energy consumption of a permanent pilot flame, expressed in %. (b) The seasonal space heating energy efficiency in active mode is calculated as: η S,on = η th,nom Where: — η th,nom is the useful efficiency at nominal heat output, based on NCV. (c) The correction factor F (2) accounting for a positive contribution to the seasonal space heating efficiency due to adjusted contributions of controls for indoor heating comfort, the values of which are mutually exclusive or cannot be added to each other, is calculated as follows: For solid fuel local space heaters the correction factor F (2) is equal to one of the factors according to Table 2, depending on which control characteristic applies. Only one value can be selected. Table 2 Correction factor F (2) If the product is equipped with (only one option may apply): F(2) single stage heat output, no room temperature control 0,0 % two or more manual stages, no temperature control 1,0 % with mechanic thermostat room temperature control 2,0 % with electronic room temperature control 4,0 % with electronic room temperature control plus day timer 6,0 % with electronic room temperature control plus week timer 7,0 % F (2) shall be zero for solid fuel local space heaters not complying with the requirements set out in Annex II, point 2 on emissions where the temperature control is set at the minimum heat output. The heat output in this setting must not be higher than 50 % of the nominal heat output. (d) The correction factor F (3) accounting for a positive contribution to the seasonal space heating efficiency due to adjusted contributions of controls for indoor heating comfort, the values of which can be added to each other, is calculated as follows: For solid fuel local space heaters the correction factor F (3) is the summation of the values according to Table 3, depending on which control characteristic(s) applies. Table 3 Correction factor F (3) If the product is equipped with (multiple options may apply): F(3) room temperature control with presence detection 1,0 % room temperature control with open window detection 1,0 % with distance control option 1,0 % F (3) shall be zero for solid fuel local space heaters not complying with the requirements set out in Annex II, point 2 on emissions where the temperature control is set at the minimum heat output. The heat output in this setting must not be higher than 50 % of the nominal heat output. (e) The auxiliary electricity use correction factor F (4) is calculated as: This correction factor takes into account the auxiliary electricity use during on-mode and standby-mode operation. Where: — el max is the electric power consumption at nominal heat output, expressed in kW, — el min is the electric power consumption at minimum heat output, expressed in kW. In case the product does not offer a minimum heat output the value for the electric power consumption at nominal heat output shall be used, — el sb is the electric power consumption of the product while in standby mode, expressed in kW, — P nom is the nominal heat output of the product, expressed in kW. (f) The correction factor F (5) related to the energy consumption of a permanent pilot flame is calculated as follows: This correction factor takes into account the permanent pilot flame power requirement. Where: — P pilot is the pilot flame consumption, expressed in kW; — P nom is the nominal heat output of the product, expressed in kW.