Power Full Heating - 9-Fin 2400W (800 W / 1200 W / 2000 W + 400W PTC); Designed for comfortable breathing, creates soothing and warm T7experience; HD320 Grade Oil for long-lasting and better efficiency Superior thermo-oxidative stability minimizes sludge & varnish formation and resists oil degradation leading to longer service life. Additional safety with Tip over Tilt Switch; OFR heats the surrounding equally unlike rod-based heaters where heats flows only in one direction. The overheat protection system shuts down the power supply when the internal temperature exceeded a safe value; Thermostatic heat control with 3 power settings & PTC fan control. Use your Hestio at the desired temperature. Hestio comes with a 2-year product warranty against manufacturing defects.