What is Radioisotope heater unit?
A '''radioisotope heater unit''' is a device that provides heat from the breakdown of [[radioactive]] material. Radioactive material is added to a container within the heater. Because the material is unstable, it [[Radioactive decay|breaks down]], releasing energy as heat. The heater may be packaged with a [[thermocouple]] to make [[electricity]]. {{science-stub}} [[Category:Nuclear energy]] [[Category:Engineering]] [[Category:Technology]]