BRITISH STANDARD BS 6172:2004

Incorporating
Amendment No. 1
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Installation and
maintenance of
domestic gas cooking
appliances (2nd and 3rd
family gases) —
Specification

ICS 97.040.20

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 BS 6172:2004

Committees responsible for this

British Standard
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The preparation of this British Standard was entrusted to Technical

Committee GSE/30, Gas installations (1st, 2nd and 3rd Family gases), upon
which the following bodies were represented:

Boiler and Radiator Manufacturers’ Association Ltd.

British Flue and Chimney Manufacturers Association
BSI Consumer Policy Committee
Catering Equipment Suppliers’ Association
Centrica plc
Council for Registered Gas Installers
Department of Trade and Industry
Health and Safety Executive
Heating and Ventilating Contractors’ Association
ICOM Energy Association
Institute of Domestic Heating and Environmental Engineers
Institution of Gas Engineers and Managers
LP Gas Association
Society of British Gas Industries
Co-opted members

The following body was also represented in the drafting of this standard,
through subcommittees and panels:
Kitchen Specialists Association

This British Standard was

published under the authority
of the Standards Policy and
Strategy Committee on
25 August 2004

© BSI 5 January 2006

First published as CP 332.401

September 1947
Second edition May 1962
Third edition as CP 334-1
August 1965
Fourth edition as BS 6172
June 1982
Fifth edition October 1990
Sixth edition August 2004
Amendments issued since publication

Amd.No. Date Comments

16116 5 January 2006 See foreword

The following BSI references
relates to the work on this
British Standard:
Committee reference GSE/30
Draft for Development
03/311157 DC

ISBN 0 580 44167 9

 BS 6172:2004

Contents
Page
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Committees responsible Inside front cover

Foreword ii
1 Scope 1
2 Normative references 1
3 Terms and definitions 2
4 Competence 2
5 Design and planning 3
6 Selection of cooking appliances 3
7 Installation of cooking appliances 4
8 Siting and clearance requirements for cooking appliances 4
9 Ventilation 6
10 Flueing 7
11 Gas Connections 7
12 Stability devices 9
13 Electrical supplies and wiring 11
14 Commissioning 11
15 Advice to be given to the user 11
Bibliography 13
Figure 1 — Clearance zones for gas cooking appliances 5
Figure 2 — Typical flexible connectors for domestic cookers
burning 2nd family gases 8
Figure 3 — Methods of provision of cooker stability 10

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 BS 6172:2004

Foreword
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This British Standard has been prepared by Technical Committee GSE/30.

It supersedes BS 6172:1990, which is withdrawn.
In this revision, the layout has been modified to follow the systematic approach
adopted in other gas installation standards. The revision provides an update of
the previous version and has been updated to reflect changes in installation
practice and legislation and also to include advice on dual-fuel cooking appliances
and flued and unflued cooking ranges.
Manufacturers’ instructions might specify a method of installation, testing and
commissioning or maintenance that differs in points of detail from this standard.
Manufacturers’ instructions take precedence over this standard. This standard is
applicable where manufacturers’ instructions do not give specific advice.
The start and finish of text introduced or altered by Amendment No. 1 is indicated
in the text by tags !".
This publication does not purport to include all the necessary provisions of a
contract. Users are responsible for its correct application.
Compliance with a British Standard does not in itself confer immunity
from legal obligations.
In particular, attention is drawn to the following statutory regulations.
The Gas Safety (Installation and Use) Regulations 1998 [1]
The Gas Safety (Installation and Use) (Northern Ireland) Regulations 2004 [2]
The Gas Appliance (Safety) Regulations 1995 [3]
The Gas Cooking Appliances (Safety) Regulations 1989 [4]
The Building Regulations 2000, as amended [5]
The Building Standards (Scotland) Regulations 1990, as amended [6]
The Building Regulations (Northern Ireland) 2000 [7]
The Gas Safety (Application) (Isle of Man) Order 1996 [8]
The Asbestos (Prohibition) Regulations 1992 [9]
The Asbestos (Prohibition) (Amendment) Regulations 1999 [10]
The Asbestos (Prohibition) (Amendment) Regulations 2003 [11]

Summary of pages
This document comprises of a front cover, an inside front cover, pages i and ii,
pages 1 to 13 and a back cover
The BSI copyright notice displayed in this document indicates when the
document was last issued.

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1 Scope
This British Standard specifies the installation (see Note 1) and maintenance of domestic gas cooking
appliances in domestic, commercial and industrial premises (see Note 2 and Note 3), including educational
establishments (see Note 4). It is applicable to gas cooking appliances conforming to BS 5386-3
and BS 5386-4 and burning 2nd and 3rd family gases, and appliances conforming to BS EN 30-1.
It is not applicable to cookers with integral boilers used to provide central heating, which are covered
in BS 6798.
It is recognised that this standard might be referred to for the installation of gas cooking appliances
conforming to standards other than BS 5386-3, BS 5386-4 and BS EN 30-1. However, other criteria might
also apply, such as surface temperatures, temperature rise of surroundings, appliance stability, etc., and
these have to be taken into account in the method of installation.
NOTE 1 For the purposes of this standard, installation includes design, inspection and commissioning. It is recognised that each of
these tasks can at times be performed by the same persons.
NOTE 2 As well as normally constructed dwellings, domestic premises include any permanently sited leisure accommodation
vehicles, residential park homes and permanently moored boats. Particular and additional requirements exist for these categories of
premises and can be found in IGE/UP/8 [12]. Neither this standard nor IGE/UP/8 [12] applies to gas installations in towed or
motorised caravans.
NOTE 3 Where domestic cooking appliances are installed in commercial or industrial premises in conjunction with catering
appliances, reference should be made to BS 6173, particularly with regard to ventilation and extraction.
NOTE 4 Additional information on installations in educational establishments is given in IGE/UP/11 [13].

2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
BS 669-1, Flexible hoses, end fittings and sockets for gas burning appliances — Part 1: Specification for
strip-wound metallic flexible hoses, covers, end fittings and sockets for domestic appliances
burning 1st and 2nd family gases.
!Text deleted"
BS 5386-3, Specification for gas burning appliances — Part 3: Domestic cooking appliances burning gas.
BS 5386-4, Specification for gas burning appliances — Part 4: Built-in domestic cooking appliances.
BS 5482-1, Domestic butane- and propane-gas-burning installations — Part 1: Specification for
installations at permanent dwellings.
BS 5440-1, Installation and maintenance of flues and ventilation for gas appliances of rated input not
exceeding 70 kW net (1st, 2nd and 3rd family gases) — Part 1: Specification for installation and maintenance
of flues.
BS 5440-2, Installation and maintenance of flues and ventilation for gas appliances of rated input not
exceeding 70 kW net (1st, 2nd and 3rd family gases) — Part 2: Specification for installation and maintenance
of ventilation for gas appliances.
BS 6891, Specification for installation of low pressure gas pipework of up to 28 mm (R1) in domestic
premises (2nd family gas).
BS 7671, Requirements for electrical installations — IEE Wiring Regulations.
BS EN 30-1, Domestic cooking appliances burning gas

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3 Terms and definitions

For the purposes of this British Standard, the following terms and definitions apply.
3.1
flexible connector
pipe with appropriate connector ends, designed to have a considerable degree of flexibility to facilitate the
connection of a gas cooking appliance to an installation pipe and to allow the appliance to be moved a short
distance without the need for disconnection
3.2
free-standing cooker
cooking appliance resting directly on the floor and comprising:
a) a hotplate, including one or more burners or electric rings;
b) one or more ovens, with or without a thermostat;
c) possibly a grill and/or griddle
3.3
dual-fuel cooking appliance
cooking appliance that utilises both gas and electricity to provide the heat for the cooking process
3.4
cooking range
heavy duty cast iron cooker
3.5
hob
independent hotplate specifically designed to be installed into the kitchen work top
3.6
hotplate
appliance, or part of an appliance, comprising one or more covered or uncovered burners and designed to
support cooking vessels
3.7
termination point
fitting on the installation pipework to which cooking appliances are connected
NOTE Where “the cooking appliance” is referred to in the text it might mean either a cooker, or a hotplate, oven, grill or griddle, or
any combination of these in a single assembly.

4 Competence
4.1 Persons carrying out the design, installation and maintenance shall be competent.
4.2 The installation work shall be carried out by a business or self-employed person, who is a member of a
“class of persons” approved for the time being by the Health and Safety Executive (HSE) as required by the
Gas Safety (Installation and Use) Regulations [1].
COMMENTARY AND RECOMMENDATIONS ON CLAUSE 4.1 AND 4.2
At the time of publication, the body with HSE approval to operate and maintain a register of businesses who
are members of a “class of persons” is the Council for Registered Gas Installers (CORGI). Therefore it is
essential that all businesses or self employed gas installers are registered with CORGI.
Persons deemed competent to carry out gas work are those who hold a certificate of gas safety competence
acceptable to CORGI which include (without limitation) the Accredited Certification Scheme (ACS) and the
Gas Services S/NVQ that has been aligned to ACS.
4.3 Persons who design the installation shall have a knowledge and understanding of the standards and
regulations that apply to ensure that the completed plans will produce a safe and satisfactory installation.

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5 Design and planning

The following shall be ascertained or obtained before planning of the installation begins:
a) the availability of a gas supply;
b) the location, size and layout of the room in which the cooking appliance is to be installed;
c) the size, height, route and termination of any flue;
d) the availability of adequate air for combustion and ventilation;
e) the availability of an electricity supply, where applicable;
f) the recommended method of installation given in the cooking appliance manufacturer’s instructions;
g) the proximity of the proposed site of the cooking appliance to combustible materials.
COMMENTARY AND RECOMMENDATIONS ON CLAUSE 5
Collaboration is essential between those concerned with the design of the cooking appliance and its
installation, both at the planning stage and during the execution of the work.

6 Selection of cooking appliances

The installer shall ensure that a new cooking appliance carries a CE mark.
The cooking appliance used shall be one that has been marked by the manufacturer as being suitable for
the gas with which it is to be supplied.
A previously used cooking appliance shall only be installed if the manufacturer’s instructions are available
to the installer.
A cooking appliance shall only be installed if it has a readable data plate.
COMMENTARY AND RECOMMENDATIONS ON CLAUSE 6
The installer should refer to the data plate and/or take other steps to ensure that the cooking appliance is
suitable for the pressure and type of gas to be burnt. Conversion to another gas, if necessary, should be
carried out strictly in accordance with the manufacturer’s instructions, using the manufacturer’s kit of
parts.
If there is any doubt as to the suitability of a cooking appliance for a particular gas, then the cooking
appliance manufacturer should be consulted.
Further information on the labelling of gas appliances is given in DD 221.
New cooking appliances
Of the cooking appliances covered by this standard, new cookers fall within the scope of the European Gas
Appliances Directive [14], implemented in the UK by the Gas Appliances (Safety) Regulations [3], which
require new gas cooking appliances to be CE marked.
The installer should ensure that the packaging and the appliance’s data plate are marked with at least the
following information:
a) the letters “GB”
b) the type of gas and appliance inlet pressure as follows:
1) for an appliance adjusted for natural gas, “G20 and/or natural gas 20 mbar” plus the
designation I2H;
2) for an appliance adjusted for butane, “G30 and/or butane 29 mbar” plus the designation I3B;
3) for an appliance adjusted for propane, “G31 and/or propane 37 mbar” plus the designation I3P;
4) for an appliance that will burn either butane or propane at the correct pressure, “G30/G31 and/or
butane/propane 29/37 mbar” plus the designation I3+.
Where a cooking appliance’s data plate carries the letters CAT1 or CAT 11 followed by the gas type
designations, (i.e. 2H, 2P, 2B), then the appliance can be used for different types of gases when adjusted to do
so. In such a case, the installer should ensure that the cooking appliance is correctly adjusted.

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Previously used cooking appliances

The original packaging of a previously used cooking appliance is generally not available. Where the
manufacturer’s instructions are not available, these should be obtained from the manufacturer or his agent
before installation of the cooking appliance begins.
Where a used cooking appliance carries the CE mark, its data plate is likely to carry the information on type
of gas and appliance inlet pressure. In such a case, the installation should proceed in accordance with the
manufacturer’s instructions.
Where the cooking appliance does not carry a CE mark, it has to be borne in mind that other criteria could
apply, such as surface temperatures, cooking appliance stability, ventilation, etc., and these need to be taken
into account in the method of installation.

7 Installation of cooking appliances

7.1 A cooking appliance shall be installed in accordance with the manufacturer’s instructions.
7.2 A cooking appliance shall not be installed in a room or internal space containing, or intended to contain,
a bath or shower.
7.3 Unless it is a single burner hotplate, a cooking appliance shall not be installed in a bed sitting room of
volume less than 20 m3.
7.4 A cooking appliance shall be located where there is sufficient space for ready access for installation,
operation and servicing.
COMMENTARY AND RECOMMENDATIONS ON CLAUSE 7
The Gas Safety (Installation and Use) Regulations [1] prohibit the installation of a gas appliance for use
with 3rd family gases, which uses automatic-ignition or a pilot light, in a room or internal space below
ground level, e.g. a basement. The Regulations do not preclude the installation of such appliances into rooms
or internal spaces which are basements with respect to one side of the building but which are open to ground
level on the opposite side.

8 Siting and clearance requirements for cooking appliances

8.1 Siting of a cooking appliance shall be in accordance with the manufacturer’s instructions.
COMMENTARY AND RECOMMENDATIONS ON 8.1
The cooking appliance should be conveniently positioned in relation to other facilities, such as the sink and
working spaces, taking account of the requirements of the user. Siting adjacent to doors or openable windows
should be avoided owing to the effects of draughts.
Locations that restrict the use of doors, other kitchen furniture or utensils should be avoided.
Close proximity of the appliance to combustible furnishings, such as curtains, should be avoided.
8.2 Clearance around a cooking appliance and within the kitchen furniture shall be in accordance with the
appliance manufacturer’s instructions regarding the supply of air, the discharge of combustion products,
and protection against excessive temperatures.
COMMENTARY AND RECOMMENDATIONS ON 8.2
In the absence of specific guidance in the manufacturer’s instructions, Figure 1 gives general guidance on
clearance zones, which should be followed.
Protective cladding, which is insulating material that can be specified by the cooking appliance
manufacturer and is fitted between the cooking appliance case and any adjacent combustible material,
might reduce the amount of clearance required.

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 BS 6172:2004

All dimensions are in millimetres

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610
610

150

150

150 20

20
150
1) Grill unit 2) Free-standing cooker with high level grill

1
760
460

50 50

Key

1 Width of hob
760
460

Zone to be kept clear of combustible materials

50 50
3) Hob 1a) — Proximity of combustible materials to cookers
Figure 1 — Clearance zones for gas cooking appliances

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All dimensions are in millimetres

300

1b) — Proximity of walls/surfaces adjacent to a hob

Figure 1 — Clearance zones for gas cooking appliances (continued)

8.3 A free standing cooker shall be sited on a stable base and, if it is to be fixed with a flexible connector, a
level surface in front of the cooking appliance shall be provided to allow it to be moved forward far enough
for disconnection.
COMMENTARY AND RECOMMENDATIONS ON 8.3
Where a plinth is used to raise a cooking appliance, it should be securely fixed and large and strong enough
to accommodate the cooker.
8.4 A cooking range shall be sited on a stable, non-combustible base capable of taking its weight.
8.5 Where gas hobs and built-in ovens are installed in kitchen furniture, the kitchen furniture shall be of
sufficient strength to support these, and shall be secured to the fabric of the building.
8.6 Where a cooker hood is to be used, both the gas cooker and the hood manufacturer’s installation
instructions shall be consulted. Where different distances are given from the top of the cooker to the bottom
of the cooker hood, the greater of the two distances shall be used.

9 Ventilation
9.1 General
The ventilation for the cooking appliance shall conform to the manufacturer’s instructions and BS 5440-2.
When installing a cooking appliance in a room or space that already contains one or more fuel burning
appliances, the ventilation shall conform to the requirements for multi-appliance installations
in BS 5440-2.
9.2 Mechanical extraction
Where mechanical extraction is to be provided, the effect of this on any other gas burning appliances shall
be determined prior to installation. (For additional information, refer to BS 5440-1.)
9.3 Flueless cooking appliances in an internal kitchen
Where a flueless cooking appliance is installed in an internal kitchen, ventilation shall be in accordance
with Approved Document F [15] to the Building Regulations and, in Scotland, Technical Standard K for
compliance with the Building Standards (Scotland) Regulations [16].

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COMMENTARY AND RECOMMENDATIONS ON 9.3

The regulations dealing with ventilation of internal kitchens are the Building Regulations [5] (England and
Wales), the Building Standards (Scotland) Regulations [6] and the Building Regulations (Northern Ireland)
[7]. Information is also provided in BS 5440-2.
9.4 Food technology classrooms
Where cooking appliances are installed in food technology classrooms, ventilation shall be provided in
accordance with the Institution of Gas Engineers and Managers publication, IGE/UP/11: Gas Installations
in Educational Establishments [13] (to be published in 2004).

10 Flueing
The installation of a flued cooking range shall be in accordance with the appliance manufacturer’s
instructions. Where these give no specific advice, the installation shall be in accordance with the
requirements of BS 5440-1.
COMMENTARY AND RECOMMENDATIONS ON CLAUSE 10
Some flued cooking ranges have forced-draught burners that can pressurise the flue systems. Any special
requirements will be given in the manufacturer’s instructions.
The Asbestos (Prohibition) Regulations 1992 [9], as amended by the Asbestos (Prohibition) (Amendment)
Regulations 1999 and 2003 [10 and 11], place restrictions on the use of asbestos materials, including a total
ban of asbestos cement and its products. Existing flue systems may only be re-used in situ provided they are
mechanically sound and the requirements and working procedures in BS 5440-1 are met.

11 Gas Connections
11.1 General
11.1.1 Only gas installation pipes and connectors of sufficient size to maintain the maximum heat input of
a cooking appliance, as specified by the appliance manufacturer, shall be used.
11.1.2 A cooking range shall be connected to the termination point with rigid pipework.
!11.1.3 A gas hob shall be connected to the termination point by means of rigid pipework or, unless stated
otherwise in the manufacturer’s instructions, a flexible connector and self-sealing plug device conforming
to BS 669-1."
11.1.4 Connections for a free-standing cooker shall be by means of a flexible connector for use with a
self-sealing plug-in device or rigid pipework.
11.1.5 Any flexible connector shall not be subjected to direct exposure to hot flue products or to contact with
hot surfaces (see also 11.4).
11.1.6 Where rigid pipework is used, an isolation valve with means of disconnection shall be provided.
11.2 Connections for 2nd family gases
11.2.1 The gas installation pipe to the termination point shall conform to BS 6891 or IGE/UP/2 [17], as
appropriate.
11.2.2 Any flexible connector shall conform to BS 669-1 !text deleted".
COMMENTARY AND RECOMMENDATIONS ON 11.2.2
The flexible connector should be installed such that it cannot be subjected to undue forces either in
anticipated normal use or whilst being connected or disconnected.
The flexible connector should be positioned in such a way that it will not suffer mechanical damage by being
trapped by a stability device (see Clause 12).
Typical flexible connectors for domestic cookers burning 2nd family gases are shown in Figure 2.

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2 3 4

5
6

7
6

8
Key
1 Right-angled bayonet socket incorporating spring 5 Alternative backplate elbow
loaded-valve 6 Cooker hose with bayonet fixing
2 Copper pipe 7 Straight bayonet socket incorporating spring-loaded valve
3 Adaptor backplate 8 Alternative arrangement for cooker hose
4 Female elbow (malleable iron)
Figure 2 — Typical flexible connectors for domestic cookers burning 2nd family gases

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11.2.3 The location of the termination point shall be in accordance with the cooking appliance
manufacturer’s instructions, where this is specified.
COMMENTARY AND RECOMMENDATIONS ON 11.2.3
The termination point should be permanently attached to a firmly fixed gas installation pipe and positioned
such that the flexible connector hose hangs freely downwards (see Figure 2). The termination point should
be securely fixed to the wall by means of a backplate adaptor or suitable alternative. The termination point
should be securely fixed to the wall immediately behind the appliance at a height of approximately 750 mm
from the floor, unless otherwise specified by the manufacturer.
The termination point should be accessible for disconnection after moving the cooking appliance.
11.3 Connections for 3rd family gases
11.3.1 The gas installation pipes to the termination point shall be in accordance with BS 5482-1 or
IGE/UP/2 [17], as appropriate.
11.3.2 The means of connection shall be either by a flexible connector specifically designed for use with 3rd
family gases or by rigid pipework.
COMMENTARY AND RECOMMENDATIONS ON 11.3.2
Flexible connectors for 2 family gases are not necessarily suitable for 3rd family gases. Connectors for 3rd
nd

family gases are normally marked with a red stripe along its length.
11.4 Temperature limitation of flexible connectors
A cooking appliance giving a temperature rise greater than 70 °C in areas likely to come into contact with
the flexible connector shall be connected in accordance with the manufacturer’s instructions.
COMMENTARY AND RECOMMENDATIONS ON 11.4
If the cooking appliance is not certificated as conforming to BS 5386-3, BS 5386-4 or BS EN 30-1, or is not
labelled to indicate its surface temperature, it should be connected by rigid pipework !text deleted".
The manufacturer’s installation instructions should be consulted to establish whether a gas cooking
appliance gives a temperature rise greater than 70 °C.

12 Stability devices
Unless otherwise stated in the manufacturer’s instructions, a free-standing cooking appliance using a
flexible connector shall be fitted with a stability device secured to the fabric of the building.
COMMENTARY AND RECOMMENDATIONS ON CLAUSE 12
Two typical stability devices are shown in Figure 3.
In the arrangement described in Figure 3a), the bracket should be adjusted to give the smallest practical
clearance between the bracket and the bottom of the engagement slot in the rear of the cooker. For that
described in Figure 3b), the stability chain should be kept as short as practicable and fixed firmly to the rear
of the cooker.

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87
....
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....
3

1
4
5
.... 55

100

2
Key
1 Floor fixing 4 Clearance between bracket and bottom of engagement slot
2 Wall fixing in rear of cooker
3 Existing slot 5 Stability bracket
a) Cooker stability bracket (for cookers specifically designed with bracket engagement slot)

4
Key
1 Stability hook 3 Nut fixing chain firmly to rear of cooker
2 Rear of cooker 4 Stability of chain
b) Cooker stability chain (for cookers not designed with a bracket engagement slot)
Figure 3 — Methods of provision of cooker stability

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13 Electrical supplies and wiring

13.1 The electrical wiring installation to the cooking appliance shall conform to BS 7671.
13.2 Electrical supplies to the cooking appliance shall be in accordance with the cooking appliance
manufacturer’s instructions. Only electrical components designed for use with the electrical supply voltage
and of a rating sufficient to carry the electrical current required by the operation of the equipment shall be
used.
13.3 Fuses shall be rated in accordance with the cooking appliance manufacturer’s instructions.
13.4 The point of connection to the mains electricity supply shall be readily accessible and the method of
connection shall provide electrical isolation of the cooking appliance by means of:
a) a fused three-pin plug and a shuttered socket-outlet; or
b) a fused, double pole switch or spur box; or
c) a double pole control unit of 30 amperes minimum capacity, with at least 3 mm contact separation at
all poles.
COMMENTARY AND RECOMMENDATIONS ON CLAUSE 13.4
Where a three-pin plug is used, this needs to be removed from the socket when the cooking appliance is being
serviced. To encourage this, an unswitched socket should be used.
13.5 The cable, plug, socket, spur box or control unit shall not be in contact with hot surfaces or directly
exposed to products of combustion.
COMMENTARY AND RECOMMENDATIONS ON 13.5
Any electrical socket should be positioned outside of the clearance zone identified in Figure 1.

14 Commissioning
14.1 The cooking appliance shall be commissioned in accordance with the manufacturer’s instructions.
Where these give no specific advice with regard to flueing and ventilation, commissioning shall be in
accordance with the requirements of BS 5440-1 and BS 5440-2, as appropriate.
14.2 All gas fittings forming part of the installation shall be tested for tightness and purged in accordance
with IGE/UP/1 [18], IGE/UP/1A [19], IGE/UP/1B [20] or LP Gas Association TM/62 [21], as appropriate.
14.3 The burners shall be lit and the operating gas pressure checked in accordance with the cooking
appliance manufacturer’s instructions.
14.4 The operation of heating elements, control systems and safety devices shall be checked in accordance
with the cooking appliance manufacturer’s instructions.
14.5 The operation of any flue shall be checked in accordance with the cooking appliance manufacturer’s
instructions to ensure that all combustion products are being safely removed. Where the manufacturer’s
instructions give no specific advice, reference shall be made to BS 5440-1.
14.6 The effect of any extract or recirculatory fans on the safe operation of the cooking appliance shall be
checked.

15 Advice to be given to the user

15.1 Operating instructions
The correct operation of the cooking appliance and of any safety controls shall be demonstrated to the
owner or occupier of the premises in which the cooking appliance is installed.
COMMENTARY AND RECOMMENDATIONS ON 15.1
Some open-flued cooking appliances are fitted with a flue spillage or atmosphere-sensing device that can
shut them down under fault conditions. The owner or occupier of the premises in which the cooking
appliance is installed should be informed of the need to call a competent (i.e. CORGI registered) gas installer
to rectify the fault and reset the control in the event of the cooking appliance failing.

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Attention is drawn to the Gas Safety (Installation and Use) Regulations [1], which require the installer to
leave for the use of the owner or occupier of premises in which a gas cooking appliance is installed all the
manufacturer’s instructions.
15.2 Maintenance
If the premises in which a cooking appliance is installed are owned by the occupier, the occupier shall be
advised in writing that, for continued efficient and safe operation of the cooking appliance, it is important
that adequate and regular maintenance is carried out by a competent person (i.e. a CORGI-registered gas
installer) in accordance with the cooking appliance manufacturer’s recommendations.
If the premises are tenanted and the landlord owns the cooking appliance, the landlord shall be advised in
writing of the duty imposed by the Gas Safety (Installation and Use) Regulations [1] to ensure that the
cooking appliance is maintained in a safe condition and checked for safety every 12 months.
COMMENTARY AND RECOMMENDATIONS ON 15.2
The Gas Safety (Installation and Use) Regulations [1] impose a general obligation, with certain exceptions,
on landlords providing cooking appliances in tenanted premises to have these checked for safety
every 12 months.
!Text deleted"
!Where an independently mounted carbon monoxide (CO) detector to BS 7927 or BS EN 50379-3 is fitted
in or recommended for a room containing a gas appliance, the installer should advise the user that a detector
should not be regarded as a substitute for proper installation and regular servicing by a competent person.
Where any defects that cannot be rectified are identified as part of any maintenance or safety check activity,
reference should be made to the requirements of the Gas Industry Unsafe Situations Procedure [22]."

12 © BSI 5 January 2006

 BS 6172:2004

Bibliography
Licensed Copy: na na, University of the West of England JISC, Thu May 11 23:22:39 BST 2006, Uncontrolled Copy, (c) BSI

Standards publications
BS 6798:2000, Specification for installation of gas-fired boilers of rated input not exceeding 70 kW net.
BS 6173:2001, Specification for installation of gas-fired catering appliances for use in all types of catering
establishments (2nd and 3rd classes).
DD 221:1997, General guidance for the marking of gas appliances.
Other publications
[1] GREAT BRITAIN. The Gas Safety (Installation and Use) Regulations 1998, SI 1998, No. 2451, London:
The Stationery Office.
[2] GREAT BRITAIN. The Gas Safety (Installation and Use) Regulations (Northern Ireland) 2004,
SR 2004, No. 63, London: The Stationery Office.
[3] GREAT BRITAIN. The Gas Appliance (Safety) Regulations 1995, SI 1995, No. 1629, London:
The Stationery Office.
[4] GREAT BRITAIN. The Gas Cooking Appliances (Safety) Regulations 1989, SI 1989, No. 149, London:
The Stationery Office.
[5] GREAT BRITAIN. The Building Regulations 2000, as amended, SI 2000, No. 2531, London:
The Stationery Office.
[6] GREAT BRITAIN. The Building Standards (Scotland) Regulations 1990, as amended, SI 1990,
No. 2179, London: The Stationery Office.
[7] GREAT BRITAIN. The Building Regulations (Northern Ireland) 2000. SR 2000, No. 389, London:
The Stationery Office.
[8] GREAT BRITAIN. The Gas Safety (Application) (Isle of Man) Order 1996, SD 326/96, London:
The Stationery Office.
[9] GREAT BRITAIN. The Asbestos (Prohibitions) Regulations 1992, SI 1992, No. 3067, as amended,
London: The Stationery Office.
[10] GREAT BRITAIN. The Asbestos (Prohibition) (Amendment) Regulations 1999, SI 1999, No. 2977,
London: The Stationery Office.
[11] GREAT BRITAIN. The Asbestos (Prohibition) (Amendment) Regulations 2003, SI 2003, No. 1889,
London: The Stationery Office.
[12] INSTITUTION OF GAS ENGINEERS AND MANAGERS. IGE/UP/8, Gas installations for caravan
holiday homes, residential park homes and permanently moored boats, London: 2001.
[13] INSTITUTION OF GAS ENGINEERS AND MANAGERS. IGE/UP/11, Gas Installations in
Educational Establishments, London: To be published in 2004.
[14] EUROPEAN COMMUNITIES. Council Directive 90/396/EEC of 29 June 1990 on the approximation
of the laws of the Member States relating to appliances burning gaseous fuels, Luxembourg: Office for
Official Publications of the European Communities, 1997 (OJ No. L196, 26.07.1990).
[15] GREAT BRITAIN. Building Regulations Approved Document F: Ventilation, The Stationery Office,
London: 1995.
[16] GREAT BRITAIN. Technical Standard K for compliance with the Building Standards (Scotland)
Regulations: Ventilation of buildings, The Stationery Office, London: 2001.
[17] INSTITUTION OF GAS ENGINEERS AND MANAGERS. IGE/UP/2, Gas installation pipework,
boosters and compressors on industrial and commercial premises, London, 1994 (amended January 1995).
[18] INSTITUTION OF GAS ENGINEERS AND MANAGERS. IGE/UP/1, Soundness testing and purging
of industrial and commercial gas installations, London: 1995.
[19] INSTITUTION OF GAS ENGINEERS AND MANAGERS. IGE/UP/1A, Soundness testing and direct
purging of small low pressure industrial and commercial gas installations, London: 1998.
[20] INSTITUTION OF GAS ENGINEERS AND MANAGERS. IGE/UP/1B, Tightness testing and purging
of domestic sized natural gas installations, London: 2002.
[21] THE LP GAS ASSOCIATION. TM/62, Gas Soundness Testing of LPG Service Pipework, Installation
Pipework and Appliances, London: 1999.
![22] GORGI: The gas industry unsafe situations procedure — Dealing with unsafe situations in
customers’ premises (4th edition), Basingstoke: 2005. (This publication can be purchased from CORGI
direct by telephoning 0870 516 8111 or online by visiting www.corgi-direct.com)."

© BSI 5 January 2006 13

 BS 6172:2004

BSI — British Standards Institution

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Licensed Copy: na na, University of the West of England JISC, Thu May 11 23:22:39 BST 2006, Uncontrolled Copy, (c) BSI

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