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This Document Has Been Superseded
A newer publication replaces it: BSI BS EN 525
Specification for direct gas-fired forced convection air heaters with rated heat inputs greater than 330 kW but not exceeding 2 MW for industrial and commercial space heating. Safety and performance requirements (excluding electrical requirements) (2nd family gases)
This British Standard gives detailed requirements, including safety and performance requirements and methods of test, for direct gas fired forced convection air heaters having heat inputs greater than 330 kW but not exceeding 2 MW, intended for industrial and commercial applications.
Appliances covered by this standard are not intended for installation in domestic dwellings.
The scope of this standard includes direct gas fired forced convection air heaters for use both with and without ducting, and intended primarily for space heating applications.
It therefore includes air heaters designed to provide:
This standard specifies the requirements for direct gas fired forced convection air heaters designed for permanent outdoor installation.
It also specifies the requirements for transportable direct gas fired forced convection air heaters.
This standard applies to appliances designed to operate on normal low pressure district supplies of 2nd family gas.
For appliances fitted with gas boosters, additional requirements may apply.
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