Most commonly used in power plants and similar applications, mazut is a heavy, low quality fuel oil. Mazut is blended or broken down in the United States and Western Europe to create diesel. Mazut may be used for heating houses that do not have the facilities to blend or break it down into more conventional petro-chemicals. For people in the west, furnaces that burn mazut are commonly known as “waste oil” heaters or “waste oil” furnaces. This product is manufactured in the Russian Federation, Kazakhstan, Azerbaijan, and Turkmenistan. Mazut is usually used for larger boilers in producing steam since the energy value is high.