Electric radiators that are oil filled can heat more quickly and retain heat for longer thanks to the specifically formulated thermal fluid properties. The oil is electrically heated, which creates a convection current inside the radiator. As the oil at the bottom warms, it moves freely around the radiator interior, allowing cold oil to fall in its place for heating. The heated oil then heats the aluminium radiator shell and the convection cycle begins in the room itself with the air. Oil filled electric radiators are excellent at retaining heat so less energy is needed to increase temperatures in the room space. Even after you turn off, these radiators will continue to gently radiate heat and keep you comfortable because the fluid inside is designed to cool slowly. Click to learn more about oil filled radiators.