The thermostatically controlled DXH330 Electric heater operates at 3300 watts on a 240v single phase circuit. Constructed with dual coil supports oversized ergonomic handle and very durable jobsite construction.; Recessed controls provide protection for switches and knobs.; Equipped with a 25°F-95°F thermostat. The heating element cycles on and off to maintain the set temperature.; Designed and certified as an unattended source of jobsite heat.; Burner coils are supported at both the top and bottom to reduce transport noise and provide extra support for increased coil life.