The DVTH has digital controls and uses automatic climate control which adjusts the heat output and fan speed higher or lower at all times to maintain the set temperature. This eliminates annoying hot and cold cycles where the heater shuts off allowing the room to cool and then turns back on to heat the room up again. This household heater has advanced safety features including: Automatic Safety Shutoff, non-glowing heat element, tight grill spacing and cool touch exterior to provide worry-free use.