Compared to ordinary oil filled radiators, our Mill Oil series are much more effective because of the closed structure of the heater which makes a unique chimney effect (patented “Heat boost” technology). For instance, our Mill Oil 1000W is as effective as a normal oil filled radiator with 2000W. 3 heat settings: 600 W/900W/1500W. Electronic Day/Night thermostat, Heat boost, Heat indicator, Tip over switch, Over heat protection, High quality aluminium feet.