Your request for a space heater that could be used for special situations is outlined below. Space heaters should be used as a last resort, and only after Heating Ventilating and Air Conditioning (HVAC) personnel have tried to correct heating requirements by the central heating system. Facility heating system modifications should be made where possible to avoid the use of space heaters.
The following steps should be taken before installing a space heater.
Contact facility HVAC Department to correct heating requirements by the central HVAC system.
Install weather stripping or control other sources of cold and drafts.
An HVAC supervisor or other qualified person must determine whether space heat is required to maintain a suitable working environment.
A certified electrician must verify that the electrical service and circuit to be used at the work site is suitable to safely supply the current required for a space heating unit.
The space heating unit must contain fully enclosed heating surfaces, must have a thermostat and a tip-over safety shutoff and be listed by an approved listing agency such as Underwriter Laboratories or Factory Mutual. (A Ceramic Forced Air Heater with thermostat and tip over safety switch is one type that contains enclosed heating elements and cool housing side surfaces). The Personal Warmer is an acceptable UL Listed Appliance that uses less than 100 watts.
The heating unit must plug directly in to a 120 volt AC receptacle.
No extension cord or temporary wiring may be used.
It is suggested the department purchase and install the listed heating unit to maintain quality control and appropriate placement of the appliance.
A plan should be established to turn heating appliances off when unattended and to maintain an area surrounding the appliance of not less than three feet that is clear of combustibles.
Heating appliances should be inspected annually and need to be reevaluated.
Portable liquid, gas or solid-fuel heaters are not approved.