Commission Delegated Regulation (EU) 2015/1186Show full title

ANNEX VIII U.K. 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 [F1 designated standards], 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 4. U.K.

Textual Amendments

F1 Words in Annex 8 point 1 substituted (31.12.2020) by virtue of The Ecodesign for Energy-Related Products and Energy Information (Amendment) (EU Exit) Regulations 2019 (S.I. 2019/539), reg. 1(3), Sch. 5 para. 14(7) (as amended by S.I. 2020/1528, regs. 1(2), 4)

2. General conditions for measurements and calculations U.K.

(a)

Local space heaters shall be tested for the preferred fuel in order to determine the energy efficiency index, direct and indirect heat output.

(b)

Declared values for direct and indirect heat output, and energy efficiency index, shall be rounded to the nearest one decimal place.

3. General conditions for energy efficiency index and consumption of local space heaters: U.K.

(a)

The useful efficiency values η_th,nom , η_th,min and the direct and indirect heat output values for P_nom , P_min are measured, where applicable.

(b)

The energy efficiency index (EEI) shall be calculated as the seasonal space heating energy efficiency in active mode (η_S,on ) corrected for local space heaters using biomass as preferred fuel by a factor taking into account the renewable character of the preferred fuel, and corrected by contributions accounting for temperature controls, auxiliary electricity consumption and permanent pilot flame energy consumption. The energy efficiency index (EEI) is expressed as a figure equivalent to its figure expressed in percentage.

4. Specific conditions for seasonal space heating energy efficiency U.K.

(a)

The energy efficiency index (EEI) of all local space heaters is defined as:

Where

• η_S,on is the seasonal space heating energy efficiency in active mode, expressed in %, calculated as set out in point 4(b),

• BLF is the biomass label factor, which is 1,45 for biomass local space heaters and 1 for fossil fuel local space heaters,

• F(2) is a correction factor accounting for a positive contribution to the energy efficiency index due to adjusted contributions of controls of indoor heating comfort, the values of which are mutually exclusive, cannot be added on top of each other, expressed in %,

• F(3) is a correction factor accounting for a positive contribution to the energy efficiency index due to adjusted contributions of controls for indoor heating comfort the values of which can be added on top of each other, expressed in %;

• F(4) is a correction factor accounting for a negative contribution to the energy efficiency index by auxiliary electricity consumption, expressed in %;

• F(5) is a correction factor accounting for a negative contribution to the energy efficiency index 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 energy efficiency index 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 all local space heaters the correction factor F(2) is equal to one of the factors according to Table 4, depending on which control characteristic applies. Only one value can be selected.

Table 4

Correction factor F(2)

If the product is equipped with (only one option may apply):	F(2)
	Fuel fired local space heaters
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 %

From 1 January 2022, F(2) shall be zero for solid fuel local space heaters with emissions, where the temperature control is set at the minimum heat output, higher than those set out in Annex II, point 2 of Commission Regulation (EU) 2015/1185(1). The heat output in this setting must not be higher than 50 % of the nominal heat output. From 1 January 2022, if F(2) is not zero the technical documentation shall include the relevant information on emissions at minimum heat output.

(d)

The correction factor F(3) accounting for a positive contribution to the energy efficiency index 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 all local space heaters the correction factor F(3) is the summation of the values according to Table 5, depending on which control characteristic(s) applies.

Table 5

Correction factor F(3)

If the product is equipped with (multiple options may apply):	F(3)
	Fuel fired local space heaters
room temperature control with presence detection	1,0 %
room temperature control with open window detection	1,0 %
with distance control option	1,0 %

From 1 January 2022, F(3) shall be zero for solid fuel local space heaters with emissions, where the temperature control is set at the minimum heat output, higher than those set out in Annex II, point 2 of Regulation (EU) 2015/1185. The heat output in this setting must not be higher than 50 % of the nominal heat output. From 1 January 2022, if F(3) is not zero the technical documentation shall include the relevant information on emissions at minimum heat output.

(e)

The auxiliary electricity use correction factor F(4) is calculated as:

This correction factor takes into account the auxiliary electricity consumption during on-mode and standby-mode operation.

For all local space heaters the auxiliary electricity consumption correction is calculated as follows:

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.

For all local space heaters the correction factor is calculated as:

Where

• P_pilot is the pilot flame consumption, expressed in kW,

• P_nom is the nominal heat output of the product, expressed in kW.

(1)

Commission Regulation (EU) 2015/1185 of 24 April 2015 implementing Directive 2009/125/EC of the European Parliament and of the Council with regard to ecodesign requirements for solid fuel local space heaters (see page 1 of this Official Journal).