Marketing InformationThe 16-13/32 x 20-19/64 in 4000 W white high capacity wall heater is factory wired or 4000 W at 240 V AC, but can be easily converted to half wattage, producing 1500 W at 208 VAC, 2000 W at 240 VAC or 3000 W at 208 VAC for versatile use. This wall heater includes an adjustable, built-in disc-type thermostat for temperature control and a steel sheathed enclosed heating element for quick and quiet heat production. The fan also remains on as the element cools down to produce the most efficient use of the remaining warmth.