Details test and examination criteria for unvented catalytic room heaters having input ratings up to and including 40,000 Btu per hour (11 723 W) for use with liquefied petroleum (LP) gases.
ANSI Z21.76-1994 history
1994ANSI Z21.76-1994 Gas-Fired Unvented Catalytic Room Heaters for Use with Liquefied Petroleum (LP) Gases