The ductwork system is an integral part of home comfort and HVAC efficiency. Yet, the ducts may not get the attention they deserve until comfort and high energy bills become an issue. Keep reading to learn how to detect and repair ductwork obstructions.
Indoor air needs an unobstructed path into the return grills and through the supply ducts, as well as to and through the living spaces. Following are common obstructions on the return side of the ductwork system:
- Filter – A clogged filter obstructs airflow and may substantially increase energy costs. Make sure you replace or clean the air filter regularly.
- Return grills – Make sure the return grills are kept clean of debris. There shouldn’t be furniture or other obstacles blocking return air.
- Air handler – A dirty evaporator coil and blower assembly prevents free airflow and hinders efficient heat exchange.
The supply-side air ducts sprawl out through the home in the attic or crawl space, and generally offer more opportunity for obstructions.
- Leaky ducts – Leaky ducts disrupt smooth airflow by delivering less airflow to certain rooms than other spaces receiving airflow from properly sealed ducts. Duct leaks may be sealed with metal tape.
- Fallen ducts – Completely fallen ducts aren’t uncommon. Check all the diffusers in your home to make sure air pressure is the same. Diffusers with weak or no airflow indicate fallen ducts, which may be sealed with metal tape.
- Crushed or tangled ducts – Damaged or tangled flex ducts obstruct airflow. Inspect the ducts to make sure they’re in good condition.
- Poor design – Poor duct design may be under- or oversized ducts, ducts without insulation and duct design with many twists and turns.
- Loose diffusers – If you hear rattling at the diffuser, it’s likely loose and losing airflow. Make sure diffusers are properly sealed to the duct and flush to the wall.
- Zone dampers – Stuck zoning system dampers block (or allow) airflow when they shouldn’t. Dampers may need to be accessed by your HVAC pro.
To learn more about ductwork obstructions and fixes for your Sarasota and Bradenton area home, please contact Aqua Plumbing & Air today.