In the design of the insulation system, insulation material in contact with hot surfaces, hot surfaces; low temperature insulation materials other side (or in contact with the environmental space or contact with another insulating material or equipment enclosure side) wascold.

Hot surface temperature is the temperature of the hot surface, the temperature of the cold the temperature is cold.

Hot surface temperature and surface temperature insulation system design calculation of the two most important parameters directly related to the selection and design thickness of the insulation materials.