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UL 1042 Document Information:
Title
UL Standard for Safety Electric Baseboard Heating Equipment
Underwriters Laboratories Inc.
Publication Date:
Aug 31, 2009
Scope:
These requirements cover portable and fixed electric baseboard
heating equipment rated at 600 volts or less, to be employed in
ordinary locations in accordance with the National Electrical Code,
ANSI/NFPA 70.
Baseboard heating equipment includes baseboard heaters and
baseboard heater accessories.
Electric baseboard heating equipment intended for use in a
hazardous location is judged on the basis of compliance with the
requirements in this standard, together with those recognized
requirements applicable to usage in hazardous locations.
Any air heating appliance sold or recommended for use as a
baseboard heater, irrespective of its dimensions or other
characteristics, is to be identified as a baseboard heater. It will
be categorized as a fixed or portable baseboard heater in
accordance with the following:
Fixed – A heater is identified as a fixed baseboard heater
if:
The heater is less than 6 in (150 mm) in overall depth, the
ratio of the overall length to the overall height is more than two
to one, and the heater can be installed completely within a space
of 18 in (460 mm) above the floor; or
The heater enclosure is intended to be connected to other heater
enclosures to form a system.
Exception: A heater intended for ceiling mounting or
suspended mounting or marked "Do Not Install Less Than 6 Feet From
Floor " is not considered to be a baseboard heater even if it
meets the specifications in (1) or (2) above.
Portable – A portable heater is identified as a baseboard heater
if, excluding projections of guard or feet, it is less than 5 in
(130 mm) in depth and if the ratio of its overall length to its
height without the handle is as follows:
Exception: A portable radiant heater which has a
visible glowing heating element and which is not sold or
recommended for use as a baseboard heater may be excluded as a
baseboard heater even if it meets the dimensional specifications in
(b) above. Such a heater may be judged under the requirements for
movable air heaters in the Standard for Movable and Wall- or
Ceiling-Hung Electric Room Heaters, UL 1278. For this
determination, a radiant heater is one in which the visible portion
of the heating element attains a temperature of at least 650°C
(1200°F) under normal conditions of operation.
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