# The Heating Appliances (Fireguards) (Safety) Regulations 1991, Paragraph 4


The hearth and any surround that is fitted projects at least 150 millimetres beyond each side of the naked flame or incandescent part of the firebed at its widest point.

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Source: https://www.legislation.gov.uk/uksi/1991/2693/schedule/paragraph/4 (the official version)
Page: https://openlegislation.uk/heating-appliances-fireguards-safety-regulations-1991/schedule/paragraph-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.