2 Functions of Plenums in Forced-Air Furnace Systems
When your home has a forced-air furnace system, the boxes between the outgoing and intake ducts are called the supply and return plenums. Along with assisting the furnace with distributing and collecting air, the plenums also serve two additional and important functions. 1. Reduce the Noise Made by Air Flowing Through the Ducts One function served by both the supply and return plenums is noise reduction. In a forced-air system, the air coming from and returning to the furnace is usually pretty loud. Without the buffering effect of the supply and return plenums, you would hear
Continue Reading