2. Turn the gas regulator valveâs knob to âPilot,â press down on it and hold it down. This starts the flow of gas to the pilot burner. On some water heater models, you press and hold down a separate red button to start the pilot burner gas flow.. Turn the gas regulator valveâs knob to âPilot,â press down on it and hold it down. This starts the flow of gas to the pilot burner. On some water heater models, you press and hold down a separate red button to start the pilot burner gas flow.
Definition of Conduction. the result of collisions between molecules; when one end of an object is heated, the molecules vibrate faster and the energy is transferred to their neighbors. Definition for Conduction :1. Thermal conduction the transfer of heat between two solid materials that are physically touching each other.2.
(kÉn-dÅ­k'shÉn) The transfer of energy, such as heat or an electric charge, through a substance. In heat conduction, energy is transferred from molecule to molecule by direct contact; the molecules themselves do not necessarily change position, but simply vibrate more or less quickly against each other. In electrical conduction, energy is transferred by the movement of electrons or ions. Compare convection. See also radiation. Our Living Language : Heat is a form of energy that manifests itself in the motion of molecules and atoms, as well as subatomic particles. Heat energy can be transferred by conduction, convection, or radiation. In conduction heat spreads through a substance when faster atoms and molecules collide with neighboring slower ones, transferring some of their kinetic energy to them. This is how the handle of a teaspoon sticking out of a cup of hot tea eventually gets hot, though it is not in direct contact with the hot liquid.