In an oil filled radiator the electric element in not in direct contact with the air, but is used to heat a low viscosity thermal fluid within the body of the radiator. This results in a balanced mix of radiant and convected heat and provides comfortable warmth which is ideal for background or boost heating in homes, conservatories and offices. All models are supplied with thermostats, some models also have integral programmable timers to enable heat output to be controlled automatically.