What is a potential problem of not venting correctly in a heating system?

Not venting correctly in a heating system can lead to condensation damage to the appliance. This occurs because improper venting can cause the exhaust gases that contain moisture to accumulate within the appliance or its venting system. When these gases cool, they can condense into water, leading to corrosion, mold growth, and deterioration of components over time. This creates a variety of problems including increased maintenance costs and reduced lifespan of the heating equipment. Additionally, if condensation builds up significantly, it can lead to blockages that impair the system’s performance and safety. Proper venting ensures that these gases are expelled efficiently, minimizing the risk of condensation-related issues.