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An organic heat carrier furnace is the common name for a heat transfer oil furnace; it is also known as a heat transfer oil boiler, while its official name is heat oil furnace. It is a new type of thermal energy equipment that uses coal, oil, and gas as fuels, and heat transfer oil as a circulating medium for heating. It employs a high-temperature circulation pump to force the heat transfer oil to circulate in a closed loop, with the heat being delivered to the devices that require it before returning to the boiler to be reheated. Due to its advantages of high temperature (above 320°C) and low pressure (0.3–0.5 MPa), as well as the ability to precisely control the heating temperature, it can replace traditional steam boilers for heating purposes. At the same time, this device does not require water treatment equipment, and it eliminates heat losses such as leaks from steam boilers; as a result, its initial investment is low and its operating costs are minimal. It is therefore a safe, efficient, and energy-saving heating device. 　　An organic heat carrier furnace refers to a new type of thermal energy conversion device whose heat transfer medium is high-temperature heat transfer oil (also known as a heat carrier). The capacity of the furnace is usually expressed in “MW” (megawatts); older units were also used, such as “10,000 kilowatts/hour” or “10,000 kcal/hour”, that is, “104 kcal/h”. Organic heat carrier boilers (also known as heat transfer oil boilers) are widely used due to their advantages of \"high temperature and low pressure\" as well as stable operation. Organic heat carrier furnaces are divided into liquid-phase and gas-phase types. A heat transfer oil heater is a large-scale device for controlling the temperature of hot oil. Its main features are the ability to achieve temperatures ranging from room temperature up to 350°C at low operating pressures, along with a high pump flow rate and high heating power.

Someone upstairs has already explained the difference between the two clearly; heat transfer boilers are governed by specific regulations, and the main difference between them lies in the pressure levels during operation. Due to the differences in operating pressure, the management requirements during the operation of hot oil pipeline systems are essentially the same as those for heat transfer furnaces; however, the control of heaters differs from that of boilers.