How do I stop my ductwork from ticking?

Fortunately, there is something you can do: insulate your ducts. Adding more insulation between the duct and the duct hangers may stop this sound entirely. If not, it should at least muffle the noise. Besides the more insulated your ducts are, the more energy-efficient your HVAC is.

Why do my vents make noise at night?

Pressure and heat within the ducts increase, causing the metal to expand. This expansion creates the banging or popping duct noise you hear. While it can be annoying, there’s nothing dangerous about these sounds coming from the ductwork. Ducts are most likely to make this noise if they’re rectangular shaped.

What causes noise in ductwork?

Possible Causes of Ductwork Noise

Air Pressure: A buildup of pressure can cause rumbling sounds. It can also cause the metal to expand and contract. When the system comes on, air pushes against the walls of ducts, expanding them. A popping or banging noise can often be heard upon startup.

How do you fix a noisy air duct?

Check the dampers on the supply side of your ductwork and try opening them up one at a time to see if this reduces the popping and banging noises. You can also adjust the actuator inside of the duct dampers up or down to reduce the duct noises. If you don’t know how to do this, contact your local HVAC technician.

What is a duct silencer?

An HVAC duct silencer is specifically engineered to reduce airborne noise carried along ducts or produced by enclosures. You’ll also find these silencers described as sound attenuators when they are used in industrial settings.

How do I make my HVAC return quieter?

Here are some ways you can reduce noise from return air:

  1. Open the Vents. …
  2. Clean the Filters and Air Ducts. …
  3. Resolve Ductwork-Related Issues. …
  4. Get the Right Vents and Grills. …
  5. Have It Checked by a Professional. …
  6. Soundproof Your Return Air Vents.

Where should a duct silencer be placed?

In most cases, air duct noise silencers are mounted between the fan and the exhaust fan as well as before the air diffusers and should be installed behind fans.

How much does a duct silencer cost?

Rectangular Air Duct Mufflers/Silencers

Item # List Price Width
Duct Muffler-08×08 $78.00 8 in
Duct Muffler-08×10 $84.50 10 in
Duct Muffler-08×12 $91.00 12 in
Duct Muffler-08×14 $97.50 14 in

Why is forced air so loud?

This can be caused by a lack of return air, which can occur because too many vents are closed off, or furniture is obstructing airflow. It’s also possible a more significant issue exists—undersized or improperly installed ductwork.

How does a fan silencer work?

If there is an obstruction creating resistance in the air stream, it produces pressure against the fan dropping the pressure the fan can create to push the air. There is a fine balance between the pressure drop allowed by the fan and the resistance of airflow created by the silencer.

How do you silence an inline fan?

Quote from Youtube video: If you want to make it quieter. Still you have a lot of options you can hang the fan from the ceiling. You can buy an inline muffler. You can use insulated ducting or you can use rigid ducting.

How do I make my blower fan quieter?

How to Quiet a Noisy Furnace Blower: 9 Easy Ways

  1. Adjust Furnace Fan Speed.
  2. Clean Furnace Blower Fan.
  3. Replace Furnace Blower Bearings.
  4. Check Motor Mount for Loose Connections.
  5. Tighten the Set Screw.
  6. Change The Belt Drive.
  7. Try Sound Insulation Solutions.
  8. Replace The Motor or Fan Blade.

Is there a silent fan?

In general, quiet fans produce approximately 15 decibels of noise on their lowest settings and 40 to 50 decibels on high settings. Bladeless fans have gained popularity in recent years because they operate at an overall lower noise level than bladed fans.