What is the consequence of insufficient combustion air in heating systems?

Insufficient combustion air in heating systems creates a significant safety hazard. Combustion processes require adequate air to mix with fuel for proper burning. When there is not enough air, it can lead to incomplete combustion, which can produce dangerous byproducts such as carbon monoxide. This gas is colorless, odorless, and highly toxic, posing severe risks to occupants in buildings. Moreover, insufficient air can lead to poor draft conditions, which may cause backdrafting, where combustion gases flow back into the living space instead of being vented outside. These safety hazards emphasize the importance of ensuring proper combustion air supply in any heating system.

Improper air supply can also lead to other issues, such as reduced efficiency and an increase in energy consumption, but primarily, the most critical concern is the increase in safety hazards posed by the potential for harmful gas exposure.