1.1 Scope 1. 1.1 These requirements apply to door air heaters direct fired with natural gas, propane-air mixtures. The word gas is used to designate these as gaseous fuels and propane is used only where specific reference is made to fuel/air ratio. 1. 1.2 These requirements apply to direct gas-fired door air heater
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Published: 04/01/1978 Number of Pages: 23 File Size: 1 file , 1.3 MB