Division 1 SEASONAL SPACE HEATING ENERGY EFFICIENCY CLASSES

United Kingdom

The seasonal space heating energy efficiency class of a heater, with the exception of low-temperature heat pumps and heat pump space heaters for low-temperature application, shall be determined on the basis of its seasonal space heating energy efficiency as set out in Table 1.

The seasonal space heating energy efficiency classes of a low-temperature heat pump and a heat pump space heater for low-temperature application shall be determined on the basis of its seasonal space heating energy efficiency as set out in Table 2.

The seasonal space heating energy efficiency of a heater shall be calculated in accordance with points 3 and 4 of Annex VII, for heat pump space heaters, heat pump combination heaters and low-temperature heat pumps under average climate conditions.

Table 1

Seasonal space heating energy efficiency classes of heaters, with the exception of low-temperature heat pumps and heat pump space heaters for low-temperature application

Seasonal space heating energy efficiency class	Seasonal space heating energy efficiency η_s in %
A⁺⁺⁺	η_s ≥ 150
A⁺⁺	125 ≤ η_s < 150
A⁺	98 ≤ η_s < 125
A	90 ≤ η_s < 98
B	82 ≤ η_s < 90
C	75 ≤ η_s < 82
D	36 ≤ η_s < 75
E	34 ≤ η_s < 36
F	30 ≤ η_s < 34
G	η_s < 30

Table 2

Seasonal space heating energy efficiency classes of low-temperature heat pumps and heat pump space heaters for low-temperature application

Seasonal space heating energy efficiency class	Seasonal space heating energy efficiency η_s in %
A⁺⁺⁺	η_s ≥ 175
A⁺⁺	150 ≤ η_s < 175
A⁺	123 ≤ η_s < 150
A	115 ≤ η_s < 123
B	107 ≤ η_s < 115
C	100 ≤ η_s < 107
D	61 ≤ η_s < 100
E	59 ≤ η_s < 61
F	55 ≤ η_s < 59
G	η_s < 55