Heating with heat storage: comparison of recommended oil radiators
Mobile heaters such as an oil radiator cannot replace the main heating system, but they do a good job of providing support in rooms that are too cool or as a short-term replacement if the main heating system fails broken-down. On the other hand, oil heaters are not suitable for continuous operation, as the devices can be quite expensive due to high power consumption.
Although an oil radiator does not replace the main heating system, it is significantly more efficient than a fan heater. The electricity is not only converted into hot air, but also into a heat storage medium, namely thermal oil. The coolant then transfers the heat to the metal casing of the radiator. Thermal oil (mineral oil, synthetic oil or biological oil) is used as a heat carrier because it has many advantages: Oil is a good heat reservoir and does not expand as much when heated. In addition, it does not attack the heating elements inside the device, unlike water for example, and is light.
Manufacturers usually do not specify what type of oil is used in the oil cooler, as this is closed circuit anyway. In other words, you don’t have to top up the oil and you don’t have to open the radiator.