DBK’s Cirrus fan heaters use positive temperature coefficient (PTC) ceramic heating technology, ideally suited for climate control. The heaters can be controlled independently from the fan, allowing a ‘fan-only’ mode for air circulation. These enclosure heaters are durable and efficient. Combined with corresponding accessories, the broad range of self-regulating PTC fan heater is suitable for many product applications. Cirrus heating fans are proven to be safe through given temperature limitation. They are compact in size, self-regulating, and highly reliable.