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BS 4834:1990



The latest, up-to-date edition.

Specification for inset open fires without convection with or without boilers, burning solid mineral fuels

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Published date


Committees responsible
Section 1. General
1.1 Scope
1.2 Definitions
1.3 Preliminary remarks
Section 2. Construction
2.1 General
2.2 Minimum dimensions for category (b) appliances
2.3 Firefront
2.4 Bottomgrate
2.5 Air control
2.6 Ashpan
2.7 Ashpit and ashpit cover
2.8 Front firebars and fallplate
2.9 Deepening bar
2.10 Deepening plate
2.11 Gas ignition burner
2.12 Boiler
2.13 Boiler flue
2.14 Tools
Section 3. Electrical requirements
3.1 General
Section 4. Performance requirements
4.1 Thermal performance requirements
4.2 Banking performance requirements
4.3 Condition of appliance after test
Section 5. Instructions and marking
5.1 Instruction
5.2 Marking
A. Test methods and conditions
B. Test fuels
1. Materials for construction of appliance components
2. Minimum dimensional requirements for category (b)
3. Minimum ashpan capacity
4. Relationship between gas ports and air ports
5. Performance requirements for category (a) appliances
    burning test fuel A or B
6. Performance requirements for category (b) appliances
    burning test fuel A or B
7. Performance requirements for category (b) appliances
    burning test fuel C and designated as suitable for
    burning bituminous coal at enhanced efficiency
8. Target burning rates
9. Nominal calorific values for test fuels
1. Typical inset open fire
2. Boiler flue mouth entry
3. Example of a suitable aeration device for a natural
    gas burner
4. Gas connection elbows
5. Test setting
6. Hood for test chimney
7. Typical gather for 400 mm open fire with back boiler
8. Typical constant water flow apparatus
9. Datum level for various types of open fire

Construction, performance and marking requirements for fires other than those designed to give space heating by convection. Also includes methods of test.

Supersedes BS 4834(1972) & 87/52906 DC. (07/2005) Reviewed and confirmed by BSI, November 2012. (10/2012)
British Standards Institution

This British Standard specifies constructional, dimensional and performance requirements for inset open fires designed to burn solid mineral fuels (i.e. bituminous coal, Welsh dry steam coal, anthracite or manufactured fuels derived from these coals). It does not apply to inset open fires designed to give space heating by convection (see BS 3376).

This standard covers appliances of nominal widths 350 mm, 400 mm, 450 mm and 500 mm, designed for use either with fireplace components complying with BS 1251 and installed in accordance with BS 8303, or with special fireplace components or boilers supplied with the appliance.

The essential components of appliances covered by this standard are the firefront, bottomgrate, ashpit cover, ashpan and means of primary air control.

Specified optional features comprise a deepening bar, deepening plate, front firebars, undergrate gas igniter and boiler.

Appliances are designated as either intermittent or overnight.

NOTE The titles of the publications referred to in this standard are listed on the inside back cover.

BS 1016-4:1973 Methods for analysis and testing of coal and coke Moisture, volatile matter and ash in the analysis sample of coke
BS 1016-2:1973 Methods for analysis and testing of coal and coke Total moisture of coke
BS 3955:1986 Specification for electrical controls for household and similar general purposes
BS 6100-1.5.1:1984 Glossary of building and civil engineering terms. General and miscellaneous. Operations. Associated plant and equipment Coordination of dimensions. Tolerances and accuracy
BS 3377:1985 Specification for boilers for use with domestic solid mineral fuel appliances
BS 1016-1:1973 Methods for analysis and testing of coal and coke Total moisture of coal
BS 1387:1985 Specification for screwed and socketed steel tubes and tubulars and for plain end steel tubes suitable for welding or for screwing to BS 21 pipe threads
BS 1016-13:1980 Methods for analysis and testing of coal and coke Tests special to coke
BS 8303:1986 Code of practice for installation of domestic heating and cooking appliances burning solid mineral fuels
BS 1017-2:1960 The sampling of coal and coke. Sampling of coke
BS 1846-1:1968 Glossary of terms relating to solid fuel burning equipment Domestic appliances

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