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UL 733 4th Edition, October 9, 2013
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UL Standard for Safety Oil-Fired Air Heaters and Direct-Fired Heaters
Includes all amendments and changes through Revision Page(s) , October 9, 2013
Published By:UL (UL)
Page Count:102
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These requirements apply to oil-fired air heaters and direct-fired heaters.

Requirements for the installation and use of oil-burning equipment are included in the Standard for the Installation of Oil-Burning Equipment, NFPA 31.