The Delonghi TRDS40820E Dragon 4 Oil filled Radiator will provide steady, silent heat. Ideal for longer-term use as the diathermic oil releases heat gradually. Fitted with pre-assembled Easy Wheel for transportation. Delonghi technology, design and reliability provides peace of mind and long lasting, effective comfort and can be easily used with 3 different heat settings. This radiator features a \"Advanced Chimney Effect\" so cold air is channeled through the hottest part of the radiator, accelerating hot air through vents for effective heating. The new enlarged battery design gives a 25% larger radiant surface ensuring a faster airflow emission and increased chimney effect, for better comfort. The Delonghi Radiator has an ECO Function which can be turned on at the touch of a button to automatically control heat settings and temperature for your comfort. The thermostat and 24 hour timer can be used to set and automatically keep the desired temperature.