Exhaust fans are used to pull air particles from your rooms and out into the atmosphere and can help remove heat during the summer.
Why Do We Need Exhaust Fans?
In the bathroom, the most important function of your exhaust fan is to draw warm, humid air out of the room during a hot shower. When this air lingers, condensation can form on every surface, rotting drywall and contributing to the development of mold and mildew. An exhaust fan that is sized appropriately for your bathroom can even prevent your mirrors from getting too foggy when your shower produces steam.
The fan in your kitchen’s range hood is used to draw out smoke and other fumes from cooking. During the summer, a kitchen exhaust fan can efficiently remove hot air to give your air conditioner a break and save you energy.
How do I know if my fan is working properly?
Every exhaust fan system should have a backdraft damper installed where the exhaust duct exits the roof or exterior wall. This might be a factory included damper or one installed by the technician. This damper is a metal piece that closes the exit making the fan a one-way system. There are several different styles of backdraft dampers, and some are more reliable than others.
It’s a good idea to know exactly where your exhaust ducts exit and how your dampers work because there are several things that can go wrong with them. Since the damper is exposed to the elements anything from debris or rust can cause the damper to remain open allowing cold air back into your home through the vent.
Over time, your dampers will age and need to be replaced. It’s a good idea to check these out in early twice a year and replace them when the time comes. Proper inspection and replacement by a professional can save you a lot on your energy bills.
Even if your damper is in decent shape you may want to consider replacing it. Not all dampers function the same and some are much better than others. If you’re unsure whether replacing your damper could make a difference, ask an HVAC professional.
If you need help with your damper or any other heating or cooling needs please reach out to us through our contact form or by calling