Eighty percent of homes in the US have a maze of heating and air conditioning ducts that run inside the walls and floors of them. As the supply ducts blow air into the rooms, return ducts bring airborne dust and other particles back into the blower. If moisture is present in the system allergy-inducing molds, mites and bacteria are prone to grow or live in your ducts. Many filters commonly used today can't keep all the dust and debris from accumilating in your ductwork. This can lead to large buildup of substance made of hair, lint, dead sking and dust that reduces the airflow through your ducts and can contribute to health problems.

To find out if your ducts need cleaning, pull off some supply and return registers and look inside the duct. If you are unsure of how to do this a Yuhan Heating and Air Conditioning professional can show you how to check this. If a new furnace is being installed, you should probably invest in a duct cleaning at the same time, because chances are the new blower will be more powerful than the old one and will stir up a lot of dust.

The benefits of clean ducts are numerous. Getting rid of the substrate that mold and bacteria grow on improves quality of life. Cleaner indoor air, longer equipment life and lower energy costs are among the benefits. Clean heating and air conditioning systems can also perform more efficiently, which may decrease energy costs, and can last longer, reducing the need for costly replacement or repairs. Along with a duct cleaning, filters and air quality measures can be addressed during a service visit. After the ducts have been cleaned is a good time to determine if they need duct sealing.