The TPI Corporation 188TASA fan forced portable heater can operate at 1500W or 1300W, and has a steel milk-house style fan and enclosure suitable for small indoor spaces. The enclosure has a handle for portability and a wire screen for safety. The unit includes a thermostat for adjustable temperature control and can operate with the fan alone to provide air circulation without heat. It has an automatic reset type limit control and a thermal cutoff device for overheat protection, and a tip-over switch to disable the heater for safety. It includes a 6 long, three-conductor power cord and is wired for 120V for compatibility with most standard circuits. The unit weighs 9 lb. and is compliant to standards for use in the United States and Canada by United Laboratories (UL).

Electric heaters generate warmth through a central heating element that is housed in a reflective enclosure that concentrates the energy produced. An element made of a combination of metals produces heat or infrared energy by the electrical resistance created when an electric current passes through it. Fan-forced heaters pass air over the heating element to expel heat from the enclosure for greater throw and circulation. Radiant heaters do not use a fan, but warm nearby objects through energy transfer. A heaters voltage and wiring should be matched to the electrical circuit where it is to be used. Heaters are used in a range of commercial applications that include shop floors, construction sites, and industrial buildings. All local electrical codes should be followed when installing permanent mounted electric heating equipment.

TPI Corporation manufactures industrial and commercial electrical heaters, process heat ovens, ventilation products and fans, lighting equipment, and thermostatic controls. The company, founded in 1950, is headquartered in Johnson City, TN.