BS 7256:1990
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Hardcopy , PDF
27-09-2012
English
31-08-1990
Foreword
Committees responsible
Specification
Section one. General
1.1 Scope
1.2 Definitions
1.3 Refuelling interval
Section two. Construction
2.1 General
2.2 Log guard
2.3 Bottomgrate
2.4 Ashpan
2.5 Ashpit cover
2.6 Combustion controls
2.7 Firedoors and charging doors
2.8 Boiler
2.9 Flue outlet
2.10 Flueways
2.11 Flue pipe and chimney sweeping
2.12 Special requirements for inset roomheaters
2.13 Convection chamber
2.14 Electrical devices
2.15 Operating tools
Section three. Performance
3.1 Banking test
3.2 Flue gas spillage test
3.3 Overrun test
3.4 Smoke leakage test
3.5 Chimney sweeping test
Section four. Instructions and marking
4.1 Instructions
4.2 Marking
Appendices
A. Method for the determination of rated heat output
(wood logs)
B. Other test methods
Table
1. Minimum thickness of non water-backed materials
Figures
1. Test setting
2. Hood for test chimney
3. Typical constant water flow apparatus
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