In a safe and healthy home, your chimneys and vents work as a one-way street, safely carrying harmful exhaust gases out of your living space. This water heater is a prime example. But under certain conditions, that traffic can reverse in a dangerous phenomenon known as backdrafting. This situation can pull toxic fumes like carbon monoxide into your family’s air. Understanding the subtle signs of backdrafting and what causes it is a critical part of maintaining a safe home environment.
💀 One way to check for negative pressure is to slightly open an exterior door and hold your hand or face near the crack. The house is under negative pressure if you feel air being drawn inward. Another method involves using a smoke pen or a blown-out match near a slightly opened door or window. If the smoke is pulled inside, it indicates negative pressure. A home performance contractor has the knowledge and special tools to evaluate the overall air tightness of your home and its impact on this condition.
Buying, building, or selling? As a building consultant with over 50 years of experience in Mississippi, I can provide the clarity and support you need.
