What is a primary function of a properly vented system?

A primary function of a properly vented system is to completely remove by-product gases to the outside. Venting systems are designed to ensure that harmful combustion by-products, such as carbon monoxide, nitrogen oxides, and water vapor, generated by appliances like furnaces and water heaters, are safely expelled from the building. This is critical for maintaining indoor air quality and ensuring occupant safety.

Effective venting prevents the accumulation of these gases inside living spaces, which can lead to serious health risks and potential fatalities. Furthermore, a well-functioning venting system supports the overall efficiency of the combustion process by maintaining proper draft and allowing the appliance to operate as designed.

While regular maintenance, pressure management, and operational costs are important considerations in the functionality of heating and cooling systems, the primary goal of venting remains the safe removal of by-products to protect occupant health and safety.