# The Energy Information (Household Air Conditioners) (No. 2) Regulations 2005, Paragraph


(1) Packaged “double ducts” units (known commercially as `double ducts') defined as `Air conditioner completely positioned inside the conditioned space, with the condenser air intake and air discharge connected to the outside by means of two ducts', will be classified according to Table 3.2 with a correction factor of –0.4.

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Source: https://www.legislation.gov.uk/uksi/2005/1726/schedule/3/paragraph/wrapper5 (the official version)
Page: https://openlegislation.uk/energy-information-household-air-conditioners-no-2-regulations-2005/schedule-3/paragraph-wrapper5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.