The DeLonghi Oil-Filled radiator has vertical thermal chimneys that are engineered to maximize radiant heat flow while maintaining a low surface temperature. This heater is perfect for any room, it provides fast and flexible heating for the entire room and the unit is equipped with a GFCI Plug so it is safe to use in the bathroom. The 24 hour programmable timer with it's energy-saving feature of 96 settings allows you to heat rooms for any desired amount of time and lets you select different time periods throughout the day and night. An adjustable thermostat maintains your desired room temperature. Adjustable heat settings optimize energy-efficient operation. This unit is permanently sealed, never needs refilling! Unit is permanently sealed with pure diathermic oil for stable and efficient heating.