Originally Posted By: dvalley
This post was automatically imported from our archived forum.
Every furnace needs a properly connected return, period. I've run into many multi family buildings with two or three furnaces in the basement and not one of them had return ductwork installed. I look down at all the return plenums and see filters exposed with no duct. Sucking in all that old musty basement air and possibly CO and sending it right into the living areas.
I red flag every one of them.!(upload://oIf4rheiwUb7is4LnZhhesllvG4.gif)
I always explain to my clients the reasons why returns must be installed.
Massachusetts Certified Home Inspections
"Some cause happiness wherever they go; others, whenever they go."