BS 4433-1:1994
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Domestic solid mineral fuel fired boilers with rated output up to 45 kW Domestic solid mineral fuel fired boilers with rated output up to 45 kw. Specification for boilers with undergrate ash removal
Hardcopy , PDF
26-09-2012
English
15-05-2001
Committees responsible
Foreword
Specification
Section 1. General
1.1 Scope
1.2 Normative references
1.3 Definitions
1.4 Symbols
1.5 Rated output
Section 2. Construction
2.1 General
2.2 Firebox capacity
2.3 Bottomgrate
2.4 Ashpit
2.5 Ashpan
2.6 Material and design
2.7 Combustion controls
2.8 Operating tools
2.9 Cleaning tools
2.10 Flue outlet
2.11 Electrical devices
2.12 Finish
Section 3. Instructions and marking
3.1 Instructions
3.2 Marking
Section 4. Boiler performance
4.1 Thermal performance
4.2 Condition of appliance after tests
Annexes
A. (normative) Performance tests
B. (normative) Determination of firebox capacity
C. (normative) Test fuel
Tables
1. List of symbols, their definitions and units
2. Minimum thickness of non-water-backed surfaces
3. Minimum size of flow and return tappings
4. Minimum depth of tappings
5. Sizes for drain tappings
6. Performance requirements
Figures
A.1 Test chimney and typical boiler flue connection
A.2 Hot water return test circuit (mixing chamber)
A.3 Cold water return test circuit (continuous flow)
List of references
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