# Commission Decision of 9 November 2007 establishing the ecological criteria for the award of the Community eco-label to electrically driven, gas driven or gas absorption heat pumps (notified under document number C(2007) 5492) (Text with EEA relevance) (2007/742/EC), Division 4: Solar gain and sizing of the cooling system

Extent: E+W+S+N.I.

If the system can also produce cooling then the solar gain of the building shall be calculated in accordance with national practice or using a validated computer program. This gain should then be compared with the current values required by building codes. For existing buildings, it is generally cost effective to reduce the solar gain before sizing the heat pump for the reduced solar gain.

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Source: https://www.legislation.gov.uk/eudn/2007/742/annex/division/15/division/4 (the official version)
Page: https://openlegislation.uk/eu-decision-2007-742/annex/division-15/division-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.