Air inlet and outlet ducts in an HVAC system should not be positioned too close together to avoid recirculation, where rejected air is immediately sucked back into the fresh air intake.
normativepending
Evidence Quote
“It's obviously Important not to have these two [ducts] too close together Because you just get recirculation So the ideally these would not be positioned so close”
Created: 8/13/2026, 4:57:53 AM
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