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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173	undefined
179	1 Scope 2 Normative references
180	3 Terms and definitions
191	4 Design 4.1 General 4.2 Characteristics 4.2.1 Designation of an installed chimney
192	4.2.2 Temperature classes 4.2.3 Pressure classes 4.2.4 Condensate resistance classes
193	4.2.5 Corrosion resistance classes 4.2.6 Sootfire resistance classes 4.2.7 Minimum distance to combustible material
194	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
195	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
196	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
197	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
198	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
199	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
200	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)
201	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
202	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
203	4.4.6.11 Minimum distance between openings in the chimney system 4.4.6.12 Back ventilation 4.4.6.13 External parts
204	4.4.6.14 Weatherproofing 4.4.6.15 Lightning protection
205	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
206	4.4.7.5 Chimney fans 4.4.7.6 Terminals
207	4.4.7.7 Particulate matter filters or separators 4.5 Chimney plate and additional information
208	5 Installation 5.1 General 5.2 Construction of relined or converted chimney systems
209	5.3 Chimney plate 6 Commissioning/handover
210	Annex A (informative)Terminology
214	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)
215	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
216	Annex C (informative)Example of typical building structure designed to assist exchange of information
221	Annex D (informative)Location of outlets of chimney systems
226	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)
233	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
235	Annex G (informative)Example for chimney system plate G.1 Example of a concentric chimney system configuration plate
236	G.2 Example of a separate chimney system configuration plate
237	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
247	H.3 Pressure class H.4 Condensate resistance class
248	H.5 Corrosion resistance class H.6 Sootfire resistance class H.7 Minimum distance to combustible material
249	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
250	I.2.2 Material characteristic I.2.3 Resistance to fire– internal to external
251	I.2.4 Human contact I.2.5 Determination of temperature class I.2.6 Check of mean temperatures
252	I.3 Pressure class I.4 Condensate resistance class I.5 Corrosion resistance class I.6 Sootfire resistance class
253	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
254	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
255	J.2 Temperature class J.2.1 General J.2.2 Material characteristic J.2.3 Resistance to fire
256	J.2.4 Human contact J.2.5 Determination of temperature class
257	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
258	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
259	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
260	K.3 Plastic flue liners in a chimney stack
262	Annex L (informative)Calculating the temperature of adjacent material L.1 Example for calculation of the temperature of adjacent material (e.g. weatherproofing)
264	L.2 Example for calculation of the temperature of adjacent materials (e.g. weatherproofing)
266	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
267	M.6 Coordination of work
268	Annex N (informative)Chimney system commissioning N.1 General N.2 Physical checks
269	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
270	N.3.2.3 Flue flow test for solid fuel N.3.2.4 Pressure test for non-concentric positive pressure chimneys systems
271	N.3.2.5 O2 measurement for concentric positive pressure chimney systems
272	N.3.3 Function of the combustion appliance (Flue draught test)
273	Annex O (informative)Recommendations for inspection, cleaning and maintenance O.1 General O.2 Inspection and cleaning O.3 Maintenance
274	Annex P (informative)Flue damper P.1 General
275	P.2 Flue damper types P.2.1 Type 1 P.2.2 Type 2
276	P.2.3 Type 3 P.2.4 Type 4
277	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
278	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
279	Annex Q (informative)Terminals Q.1 Terminal types Q.2 Required information

Published By	Publication Date	Number of Pages
BSI	2023	285


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Status	Definitive
Pages	285
Publication Date	2023-11-24
ISBN	978 0 539 29614 3
Standard Number	BS EN 15287-2:2023 – TC
Title	Tracked Changes. Chimneys. Design, installation and commissioning – Chimneys and connecting flue pipes for room sealed combustion appliances
Descriptors	Concretes, Ventilation, Installation, Grades (quality), Designations, Commissioning, Inspection, Dimensions, Flues, Chimneys, Construction systems parts, Ceramics, Cleaning, Metals, Design, Flue linings, Maintenance
Publisher	BSI
Committee	B/506
ICS Codes	91.060.40 - Chimneys, shafts, ducts

BS EN 15287-2:2023 – TC

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