Page 364 - The City and Guilds Textbook: Plumbing Book 1 for the Level 3 Apprenticeship (9189), Level 2 Technical Certificate (8202) and Level 2 Diploma (6035)

The City & Guilds Textbook: Plumbing Book 1

The Gas Safety (Installation and Use) Regulations 1998
INDUSTRY TIP
Many hot water supply appliances use gas as their main fuel source for both
A copy of the Gas Safety direct and indirect domestic hot water heating. This, obviously, means that the
(Installation and Use) Gas Regulations play an important part in any hot water installation.
Regulations 1998 can be The Gas Safety (Installation and Use) Regulations deal with the safe installation,
downloaded free from this maintenance and use of these appliances, and any gas pipework and fittings
link: www.hse.gov.uk/pubns/ connected to them in both domestic and industrial/commercial premises. The
priced/l56.pdf
main requirement of the Regulations is that only a competent person (deemed
by the HSE to be any person that is a member of an approved body) must carry
out work on any gas fitting. In this case, installers of gas appliances, pipework
and fittings must by registered with Gas Safe.

The IET (18th Edition) (BS 7671:2008) Wiring Regulations

As with the Gas Regulations, heating hot water often uses electricity either as a
direct or indirect fuel source.

Published in January 2008, all domestic and industrial electrical installations
must conform to the 18th Edition of the IET Wiring Regulations. In England
and Wales, the Building Regulations Approved Document P 2010 requires
that domestic installations be designed and installed according to BS 7671,
INDUSTRY TIP Chapter 13. This document was written to standardise electrical installations
in line with international document IEC60364-1 and equivalent standards from
A copy of the Building other countries. Guidance is given in installation manuals such as the IET on-site
Regulations 2010 Approved guide and IET Guidance notes 1 to 7.
Document P can be downloaded
free from this link: www. Installations in industrial and commercial premises must also satisfy various
planningportal.gov.uk/uploads/ other legislative documents, such as the Electricity at Work Regulations 1989.
br/BR_PDF_AD_P_2010.pdf Again, the recognised standards and practices contained in BS 7671 will help
meet these requirements.

Industry standards

INDUSTRY TIP There are a number of industry standards that we can reference to ensure that
we conform to the regulations when installing hot water systems. Some of these
British Standards BS 6700, share a commonality with those discussed in Chapter 5, Cold water systems.
BS EN 806 Parts 1 to 5 and ● British Standard BS EN 806 Parts 1 to 5: again, this standard contains extensive
BS 8558 should be read in information regarding the design and installation of hot water supply systems.
conjunction with each other. ● British Standard BS 8558:2011: this provides complementary guidance to
Although BS 6700 has been BS EN 806. It is a guide to the design, installation, testing, operation and
superseded by the other maintenance of services supplying water for domestic use.
documents, there are still
parts of the document that ● The Domestic Building Services Compliance Guide: this guide provides
remain relevant and it should guidance to the Building Regulations Approved Documents L1 and L2
still be consulted when either when installing fixed building services within new and existing dwellings
designing or installing hot to help them comply with the Building Regulations. The guide specifically
water systems. targets space heating, domestic hot water services, mechanical ventilation,
comfort cooling and interior lighting. New technologies such as heat

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