If the filter is too restrictive the noise will travel back up the ducting to the intake vent producing the same problem.
Furnace air flow loud.
I can recommend this system to reduce the noise further but you should first check that your furnace has as much unrestricted air flow as possible.
While every home is different and requires a unique fix here are some of the most common solutions to air noise resulting from high static adjust the fan speed.
The problem is to understand the cause and from there see how the situation can be remedied.
High static pressure is a common problem.
I didn t want to add another filter behind.
Loud blowing air and fan noise.
If you are hearing loud screeching and rattling noises when you turn your furnace on the bearings in the blower motor or the blower motor itself could be to blame.
From dirty air ducts blocked damper valves damaged duct runs to an insufficient numbers of return air vents there are a variety of signs that may indicate a furnace air flow issue in your home.
If you notice something wrong such as the furnace not blowing hot air properly please take it seriously and call for furnace service from our.
Loud furnace causes solutions blower motor.
Loud hvac air return.
Here are a few things.
In the room above the furnace room i used to measure 33dba noticeable noise at a distance of of 1m from one of the return air intakes and now i measure 28dba not noticeable.
Your blower motor forces the warm air out of your furnace and through the air ducts in your home.
If there s rattling in your furnace and ducts such vibrations may have simple fixes.
The furnace may need greater air flow and thus larger ducts.