The Ecodesign for Energy-Related Products and Energy Information (Household Tumble Dryers) Regulations 2026

Schedule 4 Measurement and calculation methods

Regulations 6, 8, 11(3), 13 and 16(5) Parameters for measurement 1 Where a parameter is declared pursuant to regulation 6, its declared value must be used by the manufacturer, importer or authorised representative for the calculations in this Schedule. 2 Where a parameter is declared pursuant to regulation 11 and in accordance with Table 1 or Table 2 of Schedule 5, its declared value must be used by the supplier for the calculations in this Schedule. 3 The eco programme, as identifiable on the programme selection, on the display and through the network connection, depending on the functionalities provided by the household tumble dryer, and with no further modification of the final moisture content setting, must be used for the measurement and calculation of the EEI, the condensation efficiency, the programme duration and the airborne acoustic noise emissions. 4 The energy consumption, condensation efficiency and programme duration must be measured concurrently. 5 The calculation of the weighted energy consumption, the weighted programme duration and the condensation efficiency must be done on the basis of three drying cycles at full load and four drying cycles at partial load. EEI 6 For the calculation of the EEI of a household tumble dryer model, the weighted energy consumption per drying cycle for the eco programme at full and partial load is compared to the standard energy consumption per drying cycle. 7 The EEI is calculated as follows and rounded to one decimal place— E E I = E t C S E C × 100 where— “E tC ” is the weighted energy consumption per drying cycle; “SE C ” is the standard energy consumption per drying cycle. 8 (1) SEC is calculated in kWh as follows and rounded to two decimal places— (a) for a household tumble dryer other than an air-vented tumble dryer— S E C = 0 . 46 × c 0 . 63 (b) for an air-vented tumble dryer: S E C = 0 . 46 × c 0 . 63 × 1 - T t 60 × 0 . 083 where— “c” is the rated capacity of the household tumble dryer for the eco programme; “T t ” is the weighted programme duration for the eco programme. (2) In this paragraph “air-vented tumble dryer” means a household tumble dryer that draws in fresh air, passes it over the textiles and vents the resulting moist air into the room or outside. 9 EtC is calculated in kWh as follows and rounded to two decimal places— E t C = 0 . 24 × E d r y + 0 . 76 × E d r y ½ where— “E dry ” is the energy consumption of the eco programme at full load, in kWh and rounded to two decimal places; “E dry½ ” is the energy consumption of the eco programme at partial load, in kWh and rounded to two decimal places. 10 For a gas-fired household tumble dryer, Edry and Edry1/2 are calculated as follows— E d r y = E g d r y C C + E g d r y , a E d r y ½ = E g d r y ½ C C + E g d r y ½ , a where— “Eg dry ” is the gas consumption of the eco programme at full load, in kWh and rounded to two decimal places; “Eg dry½ ” is the gas consumption of the eco programme at partial load, in kWh and rounded to two decimal places; “Eg dry,a ” is the auxiliary electricity consumption of the eco programme at full load, in kWh and rounded to two decimal places; “Eg dry½,a ” is the auxiliary electricity consumption of the eco programme at partial load, in kWh and rounded to two decimal places; “CC” is 1.9. 11 Tt for the eco programme is calculated in minutes, rounded to the nearest minute, as follows— T t = 0 . 24 × T d r y + 0 . 76 × T d r y ½ where— “T dry ” is the programme duration for the eco programme at full load, in minutes and rounded to the nearest minute; “T dry½ ” is the programme duration for the eco programme at partial load, in minutes and rounded to the nearest minute. Weighted average energy consumption 12 (1) The weighted average energy consumption per 100 drying cycles of the electric mains-operated household tumble dryer is calculated as follows and rounded to the nearest integer— E t C × 100 (2) The weighted average energy consumption per 100 drying cycles of the gas-fired tumble dryer is calculated as follows and rounded to the nearest integer— 0 . 24 × E g d r y + E g d r y , a + 0 . 76 × E g d r y 1 / 2 + E g d r y 1 / 2 , a × 100 where— “Eg dry” is the gas consumption of the eco programme at full load, in kWh and rounded to two decimal places; “Eg dry1/2” is the gas consumption of the eco programme at partial load, in kWh and rounded to two decimal places; “Eg dry,a” is the auxiliary electricity consumption of the eco programme at partial load, in kWh and rounded to two decimal places; “Eg dry1/2,a” is the auxiliary electricity consumption of the eco programme at partial load, in kWh and rounded to two decimal places. Condensation efficiency 13 The condensation efficiency of a programme (Ct) is the ratio between the mass of moisture condensed and collected in the container of a condenser tumble dryer and the mass of moisture removed from the load by the programme, the latter being the difference between the mass of the wet test load before drying and the mass of the test load after drying. 14 Ct is calculated as a percentage and rounded to the nearest whole percent as follows— C t = 0 . 24 × C d r y + 0 . 76 × C d r y ½ where— “C dry ” is the average condensation efficiency of the eco programme at full load; “C dry½ ” is the average condensation efficiency of the eco programme at partial load. Low power modes 15 The power consumption of the off mode (Po), standby mode (Psm), and where applicable delay start (Pds ) are measured; the measured values are expressed in W and rounded to two decimal places. 16 During measurements of the power consumption in low power modes, the following functions must be checked and recorded— (a) the display or not of information; (b) the activation or not of a network connection. 17 If the standby mode includes the display of information or status, this function must also be provided when the networked standby is provided. 18 If the household tumble dryer provides for a wrinkle guard function, the function must be interrupted by opening the door of the household tumble dryer or another appropriate intervention 15 minutes before the measurement of power consumption. Acoustic airborne noise emission 19 The acoustic airborne noise emission of the drying cycle of a household tumble dryer must be calculated for the eco programme at full load, using designated standards, or using other reliable, accurate and reproducible methods, which take into account the generally recognised state-of-the-art standards and methods. 20 Acoustic airborne noise emissions must be measured in dB(A) with respect to 1 pW and must be rounded to the nearest integer. Repairability index 21 The repairability index is an aggregated and normalised score, as a calculated value derived from four scoring parameters where— (a) “SDD” is the “Disassembly Depth” score; (b) “SF” is the “Fasteners (type)” score; (c) “ST” is the “Tools (type)” score; (d) “SRI” is the “Repair Information” score. 22 The Repairability Index (R) must be calculated as follows and then rounded to two decimal places— R = 0 . 450 × S D D + 0 . 225 × S F + 0 . 225 × S T + 0 . 100 × S R I Disassembly Depth , Fasteners (type) and Tools (type) assessments: general 23 The “Disassembly Depth” (SDD), “Fasteners (type)” (SF) and “Tools (type)” (ST) scores are based on the aggregation of the following priority parts level scores— (a) “WP” is the water pump; (b) “B” is the drum bearing; (c) “DB” is the drum belt; (d) “D” is the door; (e) “M” is the motor; (f) “MB” is the main printed circuit board; (g) “F” is the fan; (h) “MC” is the motor capacitor. 24 If any of the priority parts listed above is present in a product more than once, only the one which delivers the lowest score must be considered in the calculation of the “Disassembly Depth” (S DD), “Fasteners (type)” (SF) and “Tools (type)” (ST) scores. 25 If one or more priority parts are not present in the product, those priority parts must be removed from the formula of the scoring parameters where they appear. 26 In addition, the coefficients of the remaining priority parts in the formula of each scoring parameter must be divided by the complementary to 1 of the sum of the coefficients corresponding to the priority parts not present in the product, so that the sum of the remaining coefficients is always 1. Disassembly Depth (DD) assessment at part level 27 The “Disassembly Depth” (S DD) score must be calculated as follows— S D D = D D W P × 0 . 14 + D D B × 0 . 09 + D D D B × 0 . 25 + D D D × 0 . 08 + D D M × 0 . 05 + D D M B × 0 . 28 + D D F × 0 . 05 + D D M C × 0 . 06 28 The Disassembly Depth score (DDi) for each priority part (DDWP, DDB, DDDB, DDD, DDM, DDMB, DDF, DDMC) must be set on the basis of the number of steps required to remove the priority part from the product with respect to the mean number of disassembly steps (MDS) for that priority part without damaging the product. 29 The counting of the steps for each part starts from the product fully assembled. 30 The mean number of disassembly steps for each priority part is as follows— (a) Water pump: 16.1 steps; (b) Drum bearing: 18.9 steps; (c) Drum belt: 40.9 steps; (d) Door: 3 steps; (e) Motor: 49.4 steps; (f) Main printed circuit board: 13.7 steps; (g) Fan: 7.7 steps; (h) Motor capacitor: 24.9 steps. 31 Points ranging from 0 to 10 are assigned to DDi, for each priority part, as follows— (a) DD ≤ 70% MDS, DDi = 10 pt; (b) 70% MDS< DD ≤ 90% MDS, DDi = 7 pt; (c) 90% MDS < DD ≤ 110% MDS, DDi = 4 pt; (d) 110% MDS < DD ≤ 130% MDS, DDi = 1 pt; (e) DD > 130% MDS, DDi = 0 pt. 32 For the calculation of DD, the following rules apply— (a) The step count for the disassembly of each priority part is completed when the target priority part is separated and individually accessible. When the target priority part is part of an assembly or bundle of parts, implying firstly the removal of the assembly or the bundle, the end of the disassembly process takes place when the target priority part is separated and individually accessible. (b) A fastener is not considered as a part. (c) If, after the disassembly of a priority part, the disassembly of a further part requires partly the same disassembly steps, the disassembly of this part may start with the first step that is different. However, DD for that part shall be the total number of steps calculated from a fully assembled product. (d) Where multiple tools need to be used simultaneously, the use of each tool counts as a separate step. To grab a tool, to put a tool down and to remove a fastener are not considered the end of a step. The hand is not to be considered as a tool. (e) Operations related to cleaning, removing traces or heating are counted as steps. (f) Disassembly depth must be calculated on the basis of the description of the disassembly steps for each priority part given in the technical documentation. (g) Where remote notification or authorisation of serial numbers is necessary for the full functionality of the priority part, DD i is zero. Fasteners (type) (F) assessment at part level 33 The Fasteners type score (SF) is calculated as follows— S F = F W P × 0 , 14 + F B × 0 . 09 + F D B × 0 . 25 + F D × 0 . 08 + F M × 0 . 05 + F M B × 0 . 28 + F F × 0 . 05 + F M C × 0 . 06 34 The “Fasteners (type)” scores (Fi) for each priority part (FWP, FB, FDB, FD, FM, FMB, FF, FMC) are assigned according to the level of removability and reusability of the fasteners used in the device assembly. 35 Points ranging from 0 to 10 are assigned to Fi for each priority part as follows— (a) reusable fasteners, Fi = 10 pt; (b) resupplied fasteners at no cost, Fi = 7 pt; (c) resupplied fasteners at additional costs, Fi = 4 pt; (d) removable fasteners, Fi = 0 pt. 36 The identification of the type of fasteners is based on the description of each fastener type for the disassembly process to remove the specific priority part given in the technical documentation. 37 In case different types of fasteners are encountered in the disassembly of a priority part, the lowest score must be considered. Tools type (T) assessment at part level 38 The Tools type score (S T) must be calculated as follows— S T = T W P × 0 . 14 + T B × 0 . 09 + T D B × 0 . 25 + T D × 0 . 08 + T M × 0 . 05 + T M B × 0 . 28 + T F × 0 . 05 + T M C × 0 . 06 39 The Tools type scores (Ti) for each priority part i (TWP, TB, TDB, TD, TM, TMB, TF, TMC) are assigned according to the complexity and availability of the tools needed for its replacement. 40 Points ranging from 0 to 10 are assigned to Ti for each priority part as follows— (a) replacement possible with basic tools or without a tool, Ti = 10 pt; (b) replacement possible with tools supplied with the spare part, Ti = 5 pt; (c) replacement possible with commercially available tools, Ti = 0 pt. 41 The assessment of the type of tools is based on the disassembly process to remove the specific priority part given in the technical documentation. 42 Where different types of tools are needed for the disassembly of a priority part, the lowest score must be considered. Repair Information (RI) assessment at product level 43 The Repair Information Score (SRI) for the repair and maintenance information in paragraph 9 of Schedule 2 must be calculated at product level as follows— (a) availability of repair information at no cost for professional repairers, SRI = 10 pt; (b) availability of repair information with a reasonable and proportionate fee for professional repairers, SRI = 0 pt. 44 A fee must be considered reasonable if it does not discourage access to repair information by failing to take into account the extent to which the professional repairer uses the information. Interpretation 45 In this Schedule “main printed circuit board” means the board managing directly or indirectly the electric and electronic components integrated in the product.