A component of a heating or ventilation appliance used to conduct fresh air into, or waste air or combustion gases out of, an appliance or interior space.
Source: U.S. Department of Energy
A vent can refer to:
- A volcano. (also commonly a term for a deep sea vent)
- An outlet of a biological ventilation system that allows the exchange of air; see gas exchange
- The discharge from a combustion chamber; see chimney
Source: wikipedia