Duct size & noise??
- 2001Sierra
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- Location: Wynantskill NY, 10 miles from Albany
- Hot Air Coal Stoker Stove: Keystoker 90 Chimney vent
- Coal Size/Type: Rice
- Other Heating: Buderus Oil Boiler 3115-34
Most definitely. The slower the air velocity the quiter it will be.
- franpipeman
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- Coal Size/Type: rice
- Other Heating: alpine propane condensing boiler radiant floor
Many systems are really short on the return duct both in size and quantity . Return is just as important
- CoalisCoolxWarm
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- Other Heating: Oil Boiler
...and corners...
They can help cancel noise as heard from the vents. Assuming that is the noise not the expansion and banging of the ductwork itself?
Start at page 62 for sound attenuation and causes, etc.
https://www.cedengineering.com/userfiles/How%20to ... 0Ducts.pdf
They can help cancel noise as heard from the vents. Assuming that is the noise not the expansion and banging of the ductwork itself?
Start at page 62 for sound attenuation and causes, etc.
https://www.cedengineering.com/userfiles/How%20to ... 0Ducts.pdf
- McGiever
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As for the OP's noise reduction question, There can also be the concideration to reducing the blower cfm and keep the duct size as is....yes hotter air, but same amount of coal is still burnt...
As for increasing any duct, donot ignore proper return sizing as was mention...it may be that existing return size is inadequate now and supply is just fine...
BTW: Return is to be 15-20% more sq. in. opening area at the registers than the supply is.
As for increasing any duct, donot ignore proper return sizing as was mention...it may be that existing return size is inadequate now and supply is just fine...
BTW: Return is to be 15-20% more sq. in. opening area at the registers than the supply is.