A vent pipe into which several vents connect. The vent pipe leads to the vent stack and out of the building.
Vent pipe
A pipe serving as a vent.
Vent stack
A vertical line in a venting system leading out of a structure.
Vent system
A system of pipes and vents used to relive pressure in a system or route gas or liquid from a building.
Vented heater
A type of combustion heating appliance in which the combustion gases are vented to the outside, either with a fan (forced) or by natural convection.
Ventilation
The replacement of stale air with fresh air by circulation through a series of vents or a mechanical system, i.e. air conditioning.
Ventilation air
That portion of supply air that is drawn from outside, plus any recirculated air that has been treated to maintain a desired air quality.
Ventilation baffles
Ventilation effectiveness
A measure of the fraction or percentage of outdoor air that reaches the occupied zone of a specified area; an evaluation of air delivery to occupants, regardless of the effectiveness of contaminant removal.
Ventilation efficiency
An evaluation of the pollutant removal capacity of a ventilation system.
