# The Oil Heaters (Safety) Regulations 1977, Paragraph 1


An internal pressure of 2.1 bar.

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Source: https://www.legislation.gov.uk/uksi/1977/167/schedule/1/paragraph/1 (the official version)
Page: https://openlegislation.uk/oil-heaters-safety-regulations-1977/schedule-1/paragraph-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.