UL 731 UL Standard for Safety Oil-Fired Unit Heaters
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UL 731 Document Information:
Title
UL Standard for Safety Oil-Fired Unit Heaters
Underwriters Laboratories Inc.
Publication Date:
Sep 25, 1995
Scope:
These requirements apply to oil-fired unit heaters as defined
herein. Unit heaters designed to supply heated air through ducts
are covered in the Standard for Oil-Fired Central Furnaces, UL
727.
Requirements for the installation and use of oil-burning
equipment are included in the Standard for the Installation of Oil
Burning Equipment, NFPA 31 and the BOCA National Mechanical
Code.
A product that contains features, characteristics, components,
materials, or systems new or different from those covered by the
requirements in this standard, and that involves a risk of fire or
of electric shock or injury to persons shall be evaluated using
appropriate additional component and end-product requirements to
maintain the level of safety as originally anticipated by the
intent of this standard. A product whose features, characteristics,
components, materials, or systems conflict with specific
requirements or provisions of this standard does not comply with
this standard. Revision of requirements shall be proposed and
adopted in conformance with the methods employed for development,
revision, and implementation of this standard.
If a value for measurement is followed by a value in other units
in parentheses, the second value may be only approximate. The first
stated value is the requirement.
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