10GENERAL REQUIREMENTSGas SupplyThe gas supplier should ensure theavailability of an adequate supply ofgas.A gas meter may only be connectedto the service pipe by the supplier ofgas or their contractor.An existing meter should be checkedto ensure that it is capable of passingthe rate of gas supply required.Installation pipes should be fitted inaccordance with BS 6891.Pipework from the meter to the boilermust be of an adequate size. Do notuse pipes of a smaller size than theboiler gas connection (15 mm).The complete installation must betested for soundness and purged asdescribed in BS 6891.Boiler locationThe location chosen for the boilermust permit the provision of asatisfactory flue termination. Thelocation must also provide adequatespace for servicing and air circulationaround the boiler. The boiler may beinstalled in any room, althoughparticular attention is drawn to therequirements of BS7671 (IEERegulations) and, in Scotland, theelectrical provisions of the BuildingStandards (Scotland) Regulations, inrespect of the installation of a boilerin a room containing a bath orshower.Where the installation of the boilerwill be in an unusual location, specialprocedures may be necessary and BS5546 and BS 6798 give detailedguidance on this aspect. The boilermust be mounted on a flat, verticalwall, which must be sufficiently robustto take the weight of the boiler. Theboiler may be installed on acombustible wall, subject to therequirements of the Local Authoritiesand Building Regulations.A compartment used to enclose theboiler must be designed andconstructed specifically for thispurpose. (An existing cupboard orcompartment may be used providedthat it is modified for the purpose).Details of essential features ofcupboard/compartment designincluding airing cupboardinstallations are given in BS 6798.If the boiler is to be fitted in a timberframed building, it should be fitted inaccordance with Institute of GasEngineers PublicationIGE/UP/7/1998 „Guide for GasInstallation in Timber FramedHousing“.Note: Where a room sealed boileris installed in a room containing abath or shower, any electrical switchor boiler control utilising mainselectricity should be so situated thatit cannot be touched by a personusing the bath or shower.