Direct gas-fired industrial air heaters of the non- recirculating type shall be listed in accordance with ANSI Z83.4/CSA 3.7, Non-Recirculating Direct Gas- Fired Industrial Air Heaters.
18-28-926.2 Prohibited installations.
18-28-926.2.1
Non-recirculating direct gas-fired industrial air heaters shall not serve any area containing sleeping quarters.
18-28-926.2.2
Non-recirculating direct gas-fired industrial air heaters shall not recirculate room air.
18-28-926.3 Installation.
Installation of direct gas-fired industrial air heaters shall comply with the following requirements:
18-28-926.3.1
Non-recirculating direct gas-fired industrial air heaters shall be installed in accordance with manufacturer's instructions.
18-28-926.3.2
Non-recirculating direct gas-fired industrial air heaters shall be installed only in industrial or commercial occupancies.