scope:

This Standard specifies the requirements and test methods for the safety of non-domestic direct gas-fired air heaters having fully automatic control systems, hereafter referred to as "appliances". This standard applies to type A appliances with heat input 300 kW or less fitted with integral burners intended for use in other than single unit residential dwellings. It also applies to appliances designed for outdoor installation. For indoor appliances provision of the heated air may be by means of ducting or may be directly into the heated space.