UL 1042

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 ba seboard 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 cha racteristics, is to be identified as a baseboard heater. It will be categorized as a fixed or portabl e baseboard heater in accordance with the following:

a) Fixed - A heater is identified as a fixed baseboard heater if:

-- 1) The heater is less than 6 inches (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 inches (460 mm) above the floor; or