Furnace Fan Noise Reduction

Or if you have the space for it build some baffles out of 2x4 acoustic ceiling tiles inside the return chamber like below.

Furnace fan noise reduction.

For effectiveness use the foam next to the blower intake. Video of the day volume 0. Sound damping melamine installed right besides the blower in the furnace. A properly functioning furnace shouldn t make too much noise especially after initially starting.

Follow the following procedure when building sound insulation for the furnace. One that is generally needs repairs and the type of sound you re hearing can help determine the exact issue with the system. Furnaces generally aren t noisy and most modern furnaces are designed for noise reduction. Sandwich the magic eraser sponge with a galvanized steel sheet.

This had a noticeable sound reduction effect since it cuts the noise right where it originates. The sponge also offers a cleaning effect to your furnace. Make sure that your furnace filter is clean and isn t restricting airflow by being dirty. The in line noise muffler will not only reduce the noise from the fan but noise from other rooms that travels through the ducts.

I used to measure in the furnace room at a distance of 1m from the blower door 62dba and after installingthis foam it went down to 58dba. Use a wire mesh to make the sheet. Installing an acoustic rubber pad under the furnace specially if it is sitting on concrete will damp the vibration you hear through the pipes although the blower fan and motor are the most obvious parts to check take a look at the complete unit. Fiberglass duct liner is designed to be installed inside sheet metal ductwork and plenums.

Fiberglass duct liner absorbs noise and contributes to indoor comfort by lowering heat loss or gain through duct walls.