🔥🔥 Don’t Miss Out on Our End of Autumn Sale. If you have any questions, feel free to click the bottom right corner to contact our customer service..

Concat us[email protected]
Shopping Cart

No products in the cart.

🔍
BS 5440-1:2023

BS 5440-1:2023

$215.11

Chimneys, flue pipes and ventilation for gas appliances of rated input not exceeding 70 kW net (1st, 2nd and 3rd family gases) – Design, installation, commissioning and maintenance of chimneys. Specification

Published By Publication Date Number of Pages
BSI 2023 104
PDF Format Searchable Printable Preview Now
Guaranteed Safe Checkout
Categories: ,

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

PDF Catalog

PDF Pages PDF Title
6 Foreword
9 1 Scope
10 2 Normative references
11 3 Terms and definitions
16 4 Competence
17 5 General
5.1 Compatibility of appliances and chimneys
19 5.2 Chimney outlets
20 5.3 Chimneys for use with condensing appliances (open-flued and room-sealed)
22 5.4 Location of appliances
5.5 Passive stack ventilation
5.6 Exchange of information and planning
23 5.7 Maintenance
6 Room-sealed natural draught chimney configurations (balanced flue) for Type C11 appliances
6.1 General
6.2 Installation
24 6.3 Post-installation checks
25 6.4 Maintenance
7 Room-sealed: fanned draught chimney configurations for balanced flue (Type C12, C13, C32 and C33) and non-balanced flue (Type C52, C53, C62 and C63) appliances
7.1 Design options
26 7.2 Installation
29 7.3 Post-installation checks
7.4 Maintenance
8 Balanced compartment
8.1 General
30 Figure 1 — Balanced compartment installations
8.2 Design
31 8.3 Balanced compartment construction
8.4 Temperature effects
8.5 Terminals
8.6 Commissioning
32 8.7 Maintenance
9 Room-sealed Type C2 for SE-ducts and U-ducts
9.1 Selection and installation of a suitable chimney
Table 1 — Normal SE-duct block sizes in existing buildings
33 Figure 2 — Shared room-sealed systems
36 Figure 3 — Base of communal flue system – naturally vented
Figure 4 — Base of positive pressure communal flue system
37 9.2 Terminal design and location
9.3 Inspection
9.4 Selection and installation of compatible appliances
39 9.5 Maintenance
10 Individual open-flued natural draught Types B11, B12, B13 appliances
10.1 Design
41 Figure 5 — Typical methods of using a flue liner in a masonry chimney installation serving a gas appliance, other than a back boiler
42 Figure 6 — Installation of a gas fire and combined back boiler using a back boiler enclosure and prefabricated chimney: enclosure arrangement using a false chimney breast and closure panel
43 Figure 7 — Installation of a gas fire and combined back boiler using a back boiler enclosure and prefabricated chimney: enclosure arrangement using a proprietary back boiler box
46 Table 2 — Condensate-free lengths of individual open flue used with a gas fire
47 Figure 8 — Maximum lengths for condensate-free chimneys for appliances other than gas fires
49 Table 3 — Minimum void dimensions required below appliance connections
51 Table 4 — Appliance/chimney combinations which require the chimney to be lined
Figure 9 — Open-flued boiler connections to existing brick chimney
52 10.2 Installation
55 10.3 Commissioning of the chimney
58 10.4 Radon gas systems present
59 10.5 Maintenance
11 Individual open-flued fanned draught Types B14, B22, B23 appliances and fanned draught chimneys
11.1 Design
60 11.2 Installation
61 11.3 Commissioning
Table 5 — Minimum flow rates for fanned flues
11.4 Maintenance
12 Special categories of chimney
12.1 Chimneys for Type C7 (“Vertex”) appliances
62 12.2 Other open-flued fanned draught chimneys
13 Maintenance/routine checks on the chimney/flue system
13.1 General
63 13.2 Room-sealed fan-assisted positive pressure gas appliances
64 13.3 Balanced compartment
13.4 Individual open-flued natural draught Types B11, B12, B13, B14, B22, B23 appliances
65 Annex A (informative)  Classifications
Table A.1 — Classification of gas appliances used in the UK according to the method of evacuation of products of combustion (types)
68 Table A.2 — Default values
69 Annex B (informative)  Calculation method for flue sizing
Table B.1 — Resistance factors for use in calculating equivalent heights (Use specific factors from flue or chimney manufacturer’s instructions where possible)
70 Table B.2 — Inlet and outlet resistances
Table B.3 — Minimum equivalent heights needed
73 Figure B.1 — Worked example 1
74 Figure B.2 — Worked example 2
Annex C (normative)  Chimney outlet positions
76 Figure C.1 — Open-flued, natural draught chimney outlet locations for pitched roofs
77 Figure C.2 — Open-flued, natural draught chimney outlet locations adjacent to structures
Figure C.3 — Open-flued or room-sealed, natural or fanned draught chimney outlet locations adjacent to openings into a building on pitched roofs
78 Figure C.4 — Open-flued, natural draught chimney outlet locations on flat roofs
79 Figure C.5 — Open-flued, natural draught chimney outlet
80 Figure C.6 — Room-sealed configuration outlet location on pitched roofs
Figure C.7 — Open-flued, fanned draught chimney and room-sealed configuration outlet locations adjacent to structures on pitched roofs
81 Figure C.8 — Chimney outlet positions (see Table C.1 for key to open-flued chimney outlets and for room-sealed chimney configuration outlets)
82 Table C.1 — Minimum dimensions of chimney outlet positions (refer to Figure C.8)
85 Figure C.9 — Example of how a natural draught, room-sealed chimney configuration outlet position is measured
86 Figure C.10 — Example of how a fanned draught room-sealed chimney configuration outlet and a fanned draught open-flued chimney outlet position is measured
87 Figure C.11 — Proximity of flue duct outlet to a boundary
Annex D (informative)  Guidance checklist for positioning of chimney/flue terminations
88 Table D.1 — Guidance checklist
Annex E (informative)  Checking of case seals and the general integrity of room-sealed fan‑assisted positive pressure gas appliances
89 Figure E.1 — Checklist for checking case seals and the general integrity of room-sealed fan‑assisted positive pressure gas appliances
90 Annex F (normative)  Design criteria for terminals for shared system chimneys
Figure F.1 — Permitted recirculation of combustion products
91 Annex G (informative)  Guidance on the design and installation of flue block systems in the UK
92 Figure G.1 — Gas flue blocks
93 Figure G.2 — Typical flue block systems (general arrangement)
94 Figure G.3 — Bonded gas flue block system for timber frame construction
95 Figure G.4 — Typical construction details for gas flue block systems in internal walls
Figure G.5 — Typical construction details for gas flue block systems in external walls
100 Bibliography

Related products

BS 5440-1:2023
$215.11