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HEAT TRANSFER THROUGH CONVECTION. Like conduction and unlike radiation, convection requires a medium. However, in conduction the heat is transferred from one molecule to another, whereas in convection the heated fluid itself is actually moving. As it does, it removes or displaces cold air in its path.
How Insulation Prevents Heat Transfer. Learn how insulation works to slow the movement of hot air. Discover how insulation can help stop three different types of heat transfer: conduction, convection and radiation.onvection is the transfer of heat through liquids or gases. 1  Example: When cold air enters your home, it mixes with warm air. 2  Heat energy is transferred to the cooler air, and the overall temperature of the room is lowered. 3  Result: More energy is required to replace the heat transferred to the cooler air.