# Building Regulations (Northern Ireland) 2000, Regulation L1: Interpretation and application

Extent: N.I.
Status: prospective

(1) In this Part—
chimney means a structure (not being a flue pipe, but including a factory made insulated chimney) enclosing one or more flues, but does not include any chimney pot or other flue terminal;
flue means a passage which conveys the combustion products from an appliance to the external air;
flue-pipe means a pipe forming a flue, but not a pipe fitted as a lining in a chimney;
heat-producing appliance means a fixed appliance (including a cooker) which—
(a) is designed to burn solid fuel, gas, or oil; or
(b) is an incinerator;
liquefied petroleum gas (hereinafter referred to as LPG) means commercial butane and commercial propane in accordance with BS 4250: Part 1: 1987;
lpg installation means an LPG storage tank and pipework, fittings, supports and all other items required to enable liquefied petroleum gas to be conveyed from the storage tank to the heat-producing appliance; and
lpg storage tank means a fixed bulk storage tank or vessel which is used for the storage of liquefied petroleum gas and is designed to be refilled in position.
(2) Any provision in regulation L2 which applies to a heat-producing appliance shall also apply where solid fuel is intended to burn directly on a hearth without the installation of any appliance.
(3) Regulation L4 applies to LPG installations which supply fuel to heat-producing appliances in a dwelling or other residential building, which is not an institution, but not to an installation whose LPG storage tank is less than 150 litres or greater than 337,500 litres water capacity.

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Source: https://www.legislation.gov.uk/nisr/2000/389/regulation/L1 (the official version)
Page: https://openlegislation.uk/building-regulations-northern-ireland-2000/regulation-L1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.