The WSC Heater is a surfaced-mounted UL certified for outdoor use, ideal for many freeze protection applications. The WSC was designed to reduce moisture from mechanical equipment and keep pumps, valves, and farm machinery from freezing. By combining an efficient impeller style fan with a NiChrome heating element, the WSC heater delivers instant heat in even the draftiest locations. For use with a wall thermostat or in-built thermostat.