How Does Heat Transfer. Set the iron to its hottest setting usually cotton or linen if you have a 100 cotton tee. This is how the heat from the sun gets to earth.

Set the iron to its hottest setting usually cotton or linen if you have a 100 cotton tee. In solids heat passes from one point to another through conduction. As a system temperature increases the kinetic energy of the particle in the system also increases.
Conduction is when heat flows through a heated solid through a heat current moving through the material.
A heat exchanger does precisely what its name describes it allows heat to be exchanged between two fluids or substances usually water or gas without letting the substances mix together. Heat transfer takes place by the process of radiation when there are no particles of any kind which can move and transfer heat. As we know heat is a kinetic energy parameter included by the particles in the given system. Within the heat exchanger is a long coiled pipe.