3. General Requirements
3.1 Gas Fired Heaters
3.1.1 Related Documents
The installation of the air heater(s) must be in accordance with
the rules in force and the relevant requirements of the Gas Safety
Regulations, Building Regulations and the I.E.E. Regulations
for Electrical Installations.
It should also be in accordance with any relevant requirements
of the local gas region, local authority and fire authority and
the relevant recommendations of the following documents.
Institution of Gas Engineers & Managers
IGE/UP/1 (Ed.2) Strength and tightness testing and purging
of industrial and commercial gas installations.
IGE/UP/1A (Ed.2) Soundness testing and direct purging of
small low pressure industrial and commercial gas installations.
IGE/UP/1B (Ed.2) Tightness testing and direct purging of small
Natural Gas installations.
IGE/UP/2 Gas installation pipework, boosters and compressors
on industrial and commercial premises.
IGE/UP/4 (Ed.2) Commissioning of gas fired plant on industrial
and commercial premises.
IGE/UP/10 (Ed.3) Installation gas appliances in industrial and
commercial premises.
British Standards Code of Practice
BS 5588 Fire precautions in the design and construction of
buildings.
Part 2 : 1985 Code of Practice for Shops
Part 3 : 1983 Code of Practice for Office Buildings
BS 6230: 1991 Installation of Gas Fired Forced Convection
Air Heaters for Commercial and Industrial Space Heating.
Those appliances having a gross input rating not exceeding
60kW viz. CPG100 - 150 inclusive and installed so as to take
their combustion air from within the building must be installed
in accordance with the relevant recommendations of the following
document.
BS 5440 Flues and Air Supply for gas appliances of rated input
not exceeding 60kW (1st and 2nd family gases), Part 2 - Air
Supply
Reference should also be made to
BS 5864. Code of Practice for installation of gas-fired ducted-
air heaters of rated input not exceeding 60kW.
3.1.2 Service Pipes
The local gas undertaking should be consulted at the installation
planning stage in order to establish the availability of an adequate
supply of gas. An existing service pipe must not be used without
prior consultation with the local gas undertaking.
3.1.3 Meters
A gas meter is connected to the service pipe by the local gas
undertaking or a local gas undertaking contractor. An existing
meter should be checked, preferably by the gas undertaking, to
ensure that the meter is adequate to deal with the total rate of
gas supply required.
3.1.4. Installation Pipes
Installation pipes should be fitted in accordance with
IGE/UP/2. Pipework from the meter to the air heater must be
of adequate size. Do not use pipes of a smaller size than the
inlet gas connection of the heater. The complete installation
must be tested for soundness as described in the above Code.
3.1.5. Boosted Supplies
Where it is necessary to employ a gas pressure booster the
controls must include a low pressure cut off switch at the booster
inlet. The local gas undertaking must be consulted before a gas
pressure booster is fitted.
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3.2 Oil Fired Heaters
3.2.1 Related Documents
The installation of the air heater(s) must be in accordance with
the rules in force and the relevant requirements of the Building
Regulations and the I.E.E. Regulations for Electrical Installations.
It should also be in accordance with any relevant requirements
of the local authority and fire authority and the relevant
recommendations of the following documents.
OFTEC Technical Book Three: Installation requirements for
oil fired equipment.
OFTEC Easy Guides to non domestic oil feed pipes and oil
storage.
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