BS 8303-1-1995 Installation of domestic heating and cooking appliances burning solid mineral fuels - Installation of domestic heating and cooking appliances burning solid mineral f.pdf

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1、BRITISH STANDARD BS8303-1: 1994 Installation of domestic heating and cooking appliances burning solid mineral fuels Part 1: Specification for the design of installationsBS8303-1:1994 This British Standard, having been prepared under the directionof the Engineering SectorBoard, was published underthe

2、 authority of the Standards Board and comes intoeffect on 15 January 1995 BSI 02-1999 First published as CP403, August1952 Second edition, October 1974 Third edition, as BS8303, June1986 Fourth edition, January 1995 The following BSI references relate to the work on this standard: Committee referenc

3、e RHE/28 Draft for comment 91/82857 DC ISBN 0 580 22711 1 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Engineering Sector Board to Technical Committee RHE/28, upon which the following bodies were represented: Association of British So

4、lid Fuel Appliance Manufacturers British Ceramic Tile Council British Coal Corporation Consumer Policy Committee of BSI Department of Energy (Energy Efficiency Office) Department of the Environment HETAS Ltd. Incorporated Association of Architects and Surveyors Low Temperature Coal Distillers of Gre

5、at Britain Ltd. METCOM National Fireplace Manufacturers Association National Society for Clean Air Real Fire Association Solid Smokeless Fuels Federation Waterheater Manufacturers Association Coopted members Amendments issued since publication Amd. No. Date CommentsBS8303-1:1994 BSI 02-1999 i Conten

6、ts Page Committees responsible Inside front cover Foreword ii 1 Scope 1 2 Definitions 1 3 References 1 4 Information and requirements to be agreed and documented 1 5 General requirements 2 6 Appliance classification 6 7 Fireplace recess 6 8 Hearth 6 9 Flue pipes 6 10 Chimney and flue pipe cleaning 8

7、 11 Register plate 10 12 Fireback 10 13 Fireplace surround 12 14 Throat 13 15 Boiler 13 16 Electrical supply 13 17 Open fires without convection 13 18 Open fires with convection 14 19 Roomheaters 19 20 Independent boilers and freestanding cookers 24 Annex A (informative) Check list for specifying pu

8、rchasers requirements 26 Annex B (informative) Selection of appliances 29 Figure 1 Typical setting for inset open fire without a boiler unit 3 Figure 2 Typical installation of inset open fire with a boiler unit 4 Figure 3 Typical installation of a sunken ashpit inset open fire withunderfloorair supp

9、ly 5 Figure 4 Construction of a fireplace recess 7 Figure 5 Typical installation of a freestanding cooker or independent boilerina recess with a raft lintel 9 Figure 6 Typical installation of a freestanding cooker or independent boilerinan existing recess with metal register plate 10 Figure 7 Typica

10、l freestanding roomheater fitted in a recess 11 Figure 8 Typical connection of a freestanding cooker/independent boilertoachimney 12 Figure 9 Firebacks 16 Figure 10 Construction of a fireplace recess with corbelled gather applicabletoa typical installation of inset open fires and roomheaters 17 Figu

11、re 11 Typical freestanding open fire with convection fitted in a recess 18 Figure 12 Typical fitting of an open fire with convection to a back registerplate 19 Figure 13 Typical setting for inset open fire with convection, without boiler,installed into a BS1251:1987 fireback 20 Figure 14 Typical fit

12、ting and sealing of a freestanding roomheater to abackregister plate 22 Figure 15 Typical inset roomheater with surround and chimney seal 23 Figure 16 Typical free inset application of roomheater installation 24 Table 1 Size of flues 5 List of references 30BS8303-1:1994 ii BSI 02-1999 Foreword This

13、Part of BS8303 has been prepared under the direction of the Engineering Sector Board, and together with BS8303 Parts2 and3supersedes BS8303:1986 which is withdrawn. BS8303 covers the design and installation of domestic heating and cooking appliances burning solid mineral fuel. This Part of BS8303 de

14、tails the design specification to be followed by the designer, when developing an acceptable appliance installation design for a particular application. Part 2 of BS8303 specifies the practices to be followed when installing the appliance in accordance with the design specification. It reflects good

15、 site supervision and working practices. Part 3 of BS8303 gives guidance and recommendations to the designer and installer on options to be identified and the methods of achieving a safe and satisfactory installation. It also gives important guidance on other matters including maintenance and cleani

16、ng. BS8303 does not deal with design or installation of hot water heating systems or hot water supply systems. However, where the appliance involves hot water services then attention is drawn to BS5449:1990. Attention is drawn to the need to ensure compliance with all local and general regulations a

17、s they affect the installation, including the following; planning permission; Building Regulations 1; Clean Air Act 2; Gas Safety (Installation and Use) Regulations 3. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsibl

18、e for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages1to30, an inside back cover and a back cover. This standard has been upda

19、ted (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.BS8303-1:1994 BSI 02-1999 1 1 Scope This Part of BS8303 specifies both general and specific requirements relating to the design and installation of all domestic

20、heating and cooking appliances burning solid fuels in both new and existing buildings. The appliances covered by this standard are categorized as follows (see clause 6): a) open fires; b) roomheaters; c) freestanding cookers and independent boilers. Specific installation requirements related to each

21、 category of appliance are detailed under separate headings (see clauses 17 to 20). In addition to the definitive requirements, this standard also requires the items detailed in clause 4 to be documented. For compliance with this standard, both definitive requirements and the documented items have t

22、o be satisfied. 2 Definitions For the purposes of this Part of BS8303, the definitions given in BS1846-1:1994 apply. 3 References 3.1 Normative references This Part of BS8303 incorporates, by dated or undated reference, provisions from other publications. These normative references are made at the a

23、ppropriate places in the text and the cited publications are listed on page30. For dated references, only the edition cited applies; any subsequent amendments to or revisions of the cited publication apply to this Part of BS8303 only when incorporated in it by amendment or revision. For undated refe

24、rences, the latest edition applies, together with any amendments. 3.2 Informative references This Part of BS8303 refers to other publications that provide information or guidance. Editions of these publications current at the time of issue of this standard are listed on the inside back cover, but re

25、ference should be made to the latest editions. 4 Information and requirements to be agreed and documented NOTEAnnex A includes an example of a checklist that may be used to document this information. 4.1 Information to be supplied by purchaser The information to be supplied by the purchaser shall be

26、 fully documented. Both definitive requirements specified throughout the standard and the following documented items shall be satisfied before a claim of compliance with the standard can be made and verified: type (open fire, roomheater, independent boiler, cooker) and make/model (where appropriate)

27、 of appliance selected and overall heat services required. NOTEFurther information on the selection of appliances is given in Annex B. details of building structure including materials of construction; location and materials of construction of fireplace recess; hearth, including size and material of

28、 construction and decorative finish; environmental conditions particular to the area, e.g. topography; hot water boiler with hot water heating or supply system, if required; gas ignition supply point, if required. electrical supply, if required; type, size and location of fuel storage, if required;

29、other accessories, if required, e.g. fireguard. 4.2 Items for agreement The following items to be agreed between the contracting parties shall be fully documented. Both the definitive requirements specified throughout the standard and the following documented items shall be satisfied before a claim

30、of compliance can be made and verified: exact siting of the appliance, including: a) special dimensional or constructional requirements for the appliance location, the fireplace recess or surround; b) access for the installation and maintenance of pipework and/or warm air ductwork; position, size an

31、d type of chimney flue, and access for sweeping; position and type of ventilators necessary to ensure adequate provision of air for combustion and ventilation. 4.3 Exchange of information with appliance installer The design specification shall be made available to the installer prior to commencing w

32、ork.BS8303-1:1994 2 BSI 02-1999 5 General requirements 5.1 Mechanical resistance and stability The designer shall use materials whose mechanical resistance and stability is not adversely affected when subjected to the heat expected during normal use. Where it is necessary to construct a new fireplac

33、e recess, the designer shall ensure adequate foundationing for it and the chimney serving it. The design of the fireplace recess (see clause 7) shall be such that the chimney is adequately supported by the fireplace recess where appropriate by the use of load bearing lintels or corbelling of coursed

34、 masonry. Where it is necessary to construct a new chimney, it shall conform to the requirements of BS6461-1:1984 or BS7566:1992. In the case of a chimney not serving a fireplace recess the chimney shall be constructed with adequate foundationing where appropriate, so that no part of the chimney is

35、supported by the appliance. NOTEFurther information is given in clause 4 of BS8303-3:1994. The designer shall ensure that the appliance manufacturers instructions regarding securing the appliance are followed in order to prevent movement during normal use which could cause joint separation and a lea

36、kage to occur between the appliance and the flue, such that the ability of the chimney to evacuate products of combustion safety to the outside atmosphere is impaired. NOTEFurther information is given in clause 5 of BS8303-3:1994. 5.2 Safety in case of fire The materials used in the installation of

37、an appliance shall be non-combustible in accordance with the requirements of BS476-4:1970 in order to limit the spread of fire to other rooms. 5.3 Hygiene, health and the environment The size of air inlets into the room shall be such that sufficient air for combustion and ventilation is provided to

38、avoid the escape of products of combustion from the appliance. In the case of an open fire an air opening or openings with a total free area of at least50% of the throat opening area (see clause 14 and Figure 1, Figure 2 and Figure 3) shall be provided. For other appliances an opening or openings wi

39、th a total free area of at least550mm 2per kW of rated output above5kW shall be provided. Where a flue draught stabilizer is used the total free area shall be increased by300mm 2for each kW of rated output. Extractor fans shall not be located in the same room or space in which an appliance is instal

40、led. All joints between an appliance and its chimney shall be sealed using non-combustible material in a manner that enables the joint to withstand the expansion and contraction to which it is subject during normal use. NOTEFurther information is given in clause 7 of BS8303-3:1994. The designer shal

41、l ensure that the chimney outlet conforms to BS7566:1992. 5.4 Safety in use The designer shall ensure that the chimney flue size for the appliance to be installed is not less than those shown in Table 1. NOTEFurther information is given in clause 8 of BS8303-3:1994. Any fireplace recess shall be con

42、structed of non-combustible material in accordance with clause7. The outer surface temperature of the walls of the fireplace recess shall be such that during normal use of the appliance adjacent combustible material is not ignited from the heat transmitted. An appliance shall be installed on or abov

43、e a hearth (see clause 8) so that adjacent combustible materials shall not be ignited from the following causes: a) direct radiation or conduction of heat from the appliance (see clauses 17 to 20 depending upon the specific appliance to be installed); b) embers falling from the appliance (see clause

44、8); c) heat transfer from the fluepipe and fittings (seeclauses 9, 10 and11). NOTEFurther information is given in clause 9 of BS8303-3:1994. Where accidental human contact is possible surfaces shall be either lower in temperature than can cause harm as described in BS4086:1966 and PD6504:1988 or whe

45、re appropriate be protected by the use of a fireguard conforming to BS6539:1984. Where fireguards are used, provision shall be made for fixings conforming to BS6539:1984. NOTELowering the surface temperature of some surfaces may be achieved by the use of insulating materials. It shall be possible to

46、 inspect, clean and maintain the chimney without removing the installed appliance. Where the chimney cannot be swept through the appliance a soot door and/or flue pipe access port shall be provided for inspection, cleaning and maintenance (see clause 10). Each appliance shall be connected to its own

47、 individual flue. A number of individual flues may form part of a single chimney stack.BS8303-1:1994 BSI 02-1999 3 Electrical components shall have an electrical supply fitted with an appropriate fuse. Means of isolating electric components shall be provided in accordance with BS7671:1992. NOTEWhere

48、 gas is to be used for ignition purposes, attention is drawn to the Gas Safety (Installation and Use) Regulations 3. 5.5 Protection against noise Where noise generated from the operation of an appliance is sufficient to prevent sleep or rest the installation of the appliance shall be such that the n

49、oise is not transmitted to adjacent occupancy areas. NOTEFurther information is given in clause 10 of BS8303-3:1994. Figure 1 Typical setting for inset open fire without a boiler unitBS8303-1:1994 4 BSI 02-1999 Figure 2 Typical installation of inset open fire with a boiler unitBS8303-1:1994 BSI 02-1999 5 Table 1 Size of flues 5.6 Energy economy and heat retention The installation of the appliance shall be such that the amount of energy required in use, is kept to a minimum. NOTEFurther infor