Your furnace s duct work can make squeaking noises when it rubs against the floor sheathing.
My hvac floor vent has started squeeking.
Moving on if you feel comfortable remove the cover of your furnace blower compartment.
The average system lasts about 15 to 20 years and there are several things homeowners can do to maximize the life of their system and get the most out of their investment.
I suspect your squeak is the ductwork sheet metal moving up and down along the shaft of the vertical nail or bracket holding it to the bottom of the floor joists.
If you start hearing a popping noise there may be some issue with your ducts that may need to be repaired such as undersized ducts closed vents flimsy ducts or a clogged air filter.
Some systems are louder than others.
Many units emit a slight squeal under normal operation.
Outdoor fan motors and indoor blower motors squeal loudly when they re going bad.
To start you should know that unless your system is super old or a commercial system it is highly unlikely that your system is belt driven but you never know.
The blower wheel and housing will also squeal when they malfunction.
Creaking popping and snapping sounds can emanate from a hardwood floor that has been nailed to a wood subfloor as well as one that has.
All air vents connected to your heating and air conditioning duct system meaning supply registers ceiling diffusers floor vents and return grilles make some noise when the system s fan is running.
The 2 12 floor joists on a 16 foot span are well within span limits for single family residences therefore they are not likely the cause due to excessive deflection.
Do you see a belt attached to the blower.
Expanding and contracting air ducts if your home has metal air ducts the ducts can expand and contract when the furnace is turned on and off.
This is especially the case when at this point in the year it has been sitting for several.
Hvac systems can be a costly investment one most homeowners should only have to make a few times in their life.
What causes a creaking popping noise in hardwood floors.
One provides the path for the conditioned air to go from the furnace to the rooms around the house the second duct system allows the air in the rooms to return to the furnace for heating or cooling.
You ll hear this noise both outside and coming through the vents inside your home.
If this is indeed the cause your next step would be to replace the belt or call us.
Blower and fan noises such as squeaks squeals and rattles may be transmitted through the duct system.
And some systems are much louder than others.
If so you have a belt drive blower.
