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.
Conduction is when heat is transferred through a material by passing thermal energy from molecule to molecule (from collisions). An example is when you heat up one end of a pa â¦ n and the handle gets hot a little later. Convection is when, as they say, heat rises.onduction:-   Conduction is the transfer heat from a hotter to a colder body by  vibrating.   Convection:-   Is the main heat transfer mechanism in fluids.