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BS EN 15287-2:2023

BS EN 15287-2:2023

$215.11

Chimneys. Design, installation and commissioning – Chimneys and connecting flue pipes for room sealed combustion appliances

Published By Publication Date Number of Pages
BSI 2023 114
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This document describes the method of specifying the design, installation and labelling criteria for chimney systems, construction of custom-built chimneys, the relining or converting of existing chimneys, connecting flue pipes and air supply pipes for room sealed combustion appliances as well as the use of chimney products. It also gives information on commissioning of an installed chimney. This document applies to chimneys which are subject to the following limiting conditions: – the distance between the supports not to exceed 4 m; – the distance above the last structural attachment not to exceed 3 m; – the free-standing height above the uppermost structural support attachment for chimneys with rectangular cross section is not more than five times the smallest external dimension. This document does not cover: – chimneys which serve a mixture of fan assisted or forced draught burners or natural draught appliances, – installations having a configuration of the type C2. NOTE Room sealed gas appliances are classified as type C according to EN 1749. The methods in this part of this document are applicable to chimneys and connecting flue pipes for room sealed combustion appliances. The methods in Part 1 of this document are applicable to chimneys and connecting flue pipes for non-room sealed combustion appliances.

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PDF Pages PDF Title
2 undefined
8 1 Scope
2 Normative references
9 3 Terms and definitions
20 4 Design
4.1 General
4.2 Characteristics
4.2.1 Designation of an installed chimney
21 4.2.2 Temperature classes
4.2.3 Pressure classes
4.2.4 Condensate resistance classes
22 4.2.5 Corrosion resistance classes
4.2.6 Sootfire resistance classes
4.2.7 Minimum distance to combustible material
23 4.3 Required information
4.3.1 Sources of data and information
4.3.2 Local conditions
4.3.3 Combustion appliance information
4.3.4 Building structure and chimney system route
4.3.5 Existing chimney
4.3.6 Chimney product specification
24 4.4 Design requirements
4.4.1 General
4.4.2 Route of the chimney and the connecting flue pipe
4.4.2.1 Location of chimney outlet
25 4.4.2.2 Chimney system route
4.4.2.3 Connecting flue pipe and connecting air supply pipe route
4.4.3 Designation classes
4.4.3.1 General
26 4.4.3.2 System chimney
4.4.3.3 Custom-built, relined or converted chimney system with separate air/flue configuration
4.4.3.4 Custom-built, relined, or converted chimney system with concentric air/flue configuration
27 4.4.3.5 Connecting flue pipe
4.4.4 Materials of construction
4.4.4.1 System chimneys
4.4.4.2 Custom-built, relined or converted chimneys
28 4.4.4.3 Connecting flue pipe, connecting air supply pipe, and adaptors
4.4.4.4 Terminal for custom-built, relined or converted chimney systems for room sealed applications
4.4.4.5 Supplementary components or additional materials
4.4.5 Chimney system sizing and characteristics
29 4.4.6 Installation requirements
4.4.6.1 Fire resistance external to external
4.4.6.2 Minimum distance to combustible material (resistance to fire internal to external)
30 4.4.6.3 Accidental human contact
4.4.6.4 Accidental ignition of extraneous material
4.4.6.5 Supports
4.4.6.6 Joints
31 4.4.6.7 Condensate drainage and rainwater disposal
4.4.6.8 Positive pressure chimneys
4.4.6.9 Chimney offsets
4.4.6.10 Access for inspection, cleaning and measuring
32 4.4.6.11 Minimum distance between openings in the chimney system
4.4.6.12 Back ventilation
4.4.6.13 External parts
33 4.4.6.14 Weatherproofing
4.4.6.15 Lightning protection
34 4.4.6.16 Earthing of chimney systems
4.4.7 Accessories
4.4.7.1 General
4.4.7.2 Silencer
4.4.7.3 Rain cap
4.4.7.4 Flue damper
35 4.4.7.5 Chimney fans
4.4.7.6 Terminals
36 4.4.7.7 Particulate matter filters or separators
4.5 Chimney plate and additional information
37 5 Installation
5.1 General
5.2 Construction of relined or converted chimney systems
38 5.3 Chimney plate
6 Commissioning/handover
39 Annex A (informative)Terminology
43 Annex B (informative)List of combustion appliance data required for the design of a chimney
B.1 For choosing the chimney type (required chimney designation)
B.2 For calculation of the chimney (sizing, see 4.4.5)
44 B.3 For combustion appliance/connecting flue pipe/chimney adapter and combustion air supply/connecting air pipe/combustion appliance adaptor design/choice
B.4 For terminal design/choice
45 Annex C (informative)Example of typical building structure designed to assist exchange of information
50 Annex D (informative)Location of outlets of chimney systems
55 Annex E (informative)Correlation between the product designation of metal system chimneys, liners and connecting flue pipes and the corrosion loads in Member States (MS)
62 Annex F (informative)Correlation between type of flue liner according to the designation of parameters for clay/ceramic flue liners, clay/ceramic flue blocks and concrete flue blocks and the designation according to EN 1443
64 Annex G (informative)Example for chimney system plate
G.1 Example of a concentric chimney system configuration plate
65 G.2 Example of a separate chimney system configuration plate
66 Annex H (informative)Determination of the chimney system designation for custom-built, relined and converted chimney systems with concentric air/flue configuration
H.1 General
H.2 Temperature class
76 H.3 Pressure class
H.4 Condensate resistance class
77 H.5 Corrosion resistance class
H.6 Sootfire resistance class
H.7 Minimum distance to combustible material
78 Annex I (informative)Example for the determination of the designation of a converted or relined chimney system
I.1 Input data for a typical converted or relined chimney system
I.1.1 Existing chimney that becomes the air supply duct
I.1.2 Flue liner
I.1.3 Insulation
I.2 Temperature class
I.2.1 General
79 I.2.2 Material characteristic
I.2.3 Resistance to fire– internal to external
80 I.2.4 Human contact
I.2.5 Determination of temperature class
I.2.6 Check of mean temperatures
81 I.3 Pressure class
I.4 Condensate resistance class
I.5 Corrosion resistance class
I.6 Sootfire resistance class
82 I.7 Minimum distance to combustible material
I.8 Designation of the converted or relined chimney system
I.9 Chimney plate of the converted or relined chimney system in this example
83 Annex J (informative)Example for the determination of the designation of a custom-built chimney system
J.1 Input data for a custom-built chimney system
J.1.1 Flue liner
J.1.2 Insulation
J.1.3 Air supply duct
J.1.4 Combustible wall
84 J.2 Temperature class
J.2.1 General
J.2.2 Material characteristic
J.2.3 Resistance to fire
85 J.2.4 Human contact
J.2.5 Determination of temperature class
86 J.2.6 Check of the temperatures at the outer surfaces of the flue duct and the air supply duct
J.3 Pressure class
J.4 Condensate resistance class
87 J.5 Corrosion resistance class
J.6 Sootfire resistance class
J.7 Minimum distance to combustible material
J.8 Designation of the custom-built chimney system
J.9 Chimney plate for the custom-built chimney system in this example
88 Annex K (informative)Minimum distances to combustible material
K.1 Non-concentric connecting flue pipes without designation according to 4.2
K.2 Access components
89 K.3 Plastic flue liners in a chimney stack
91 Annex L (informative)Calculating the temperature of adjacent material
L.1 Example for calculation of the temperature of adjacent material (e.g. weatherproofing)
93 L.2 Example for calculation of the temperature of adjacent materials (e.g. weatherproofing)
95 Annex M (informative)Useful hints for handling of materials and components on site
M.1 General
M.2 Check of existing chimney
M.3 Checking before installation
M.4 Checking on delivery of materials
M.5 Site handling and storage
96 M.6 Coordination of work
97 Annex N (informative)Chimney system commissioning
N.1 General
N.2 Physical checks
98 N.3 Operational checks
N.3.1 General
N.3.2 Tightness of the flue duct
N.3.2.1 Flue flow test for gas
N.3.2.2 Flue flow test for oil
99 N.3.2.3 Flue flow test for solid fuel
N.3.2.4 Pressure test for non-concentric positive pressure chimneys systems
100 N.3.2.5 O2 measurement for concentric positive pressure chimney systems
101 N.3.3 Function of the combustion appliance (Flue draught test)
102 Annex O (informative)Recommendations for inspection, cleaning and maintenance
O.1 General
O.2 Inspection and cleaning
O.3 Maintenance
103 Annex P (informative)Flue damper
P.1 General
104 P.2 Flue damper types
P.2.1 Type 1
P.2.2 Type 2
105 P.2.3 Type 3
P.2.4 Type 4
106 P.2.5 Type 5
P.3 Additional information for the use of a flue damper type 2 and 4
P.3.1 Combustion appliances with forced draught burners
107 P.3.2 Combustion appliances with burners with fan without air purging
P.3.3 Combustion appliances with burners with fan with post-purge period
P.3.4 Combustion appliances with gas burners without fan
P.3.5 Closing time of the flue damper flap
P.3.6 Malfunction of the flue damper
108 Annex Q (informative)Terminals
Q.1 Terminal types
Q.2 Required information

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BS EN 15287-2:2023
$215.11