Regulation 23 Fire risk to walls and floors

An oil heater shall be so constructed that, if it is tested in accordance with the test specified in Appendix G to the British Standard Specification of 1974, no part of the floor or of the walls mentioned in paragraph 2 of that Appendix will during the test exceed in temperature 65°C in the case of a heater which radiates heat principally in one direction and 100°C in the case of any other heater.