THERMOSTAT, 24 HOUR TIMER & 3 HEAT SETTINGS: Set the timer, thermostat and heat setting between 800W, 1200W and 2000W to suit your daily needs, set the simple to use mechanical timer from 1-24 hours and the unit will automatically switch off when your set time is reached on a daily basis. Or if you prefer just use the heater on basic function which enables you to switch off the unit manually when you require.