Closed dampers in floor registers create approximately half an inch of water column static pressure accumulation on the supply side of HVAC systems, indicating significant airflow restriction and system imbalance.
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Unidentified Speaker — Floor Ducts Gone Wild! #HVAC wood registers may block airfl… [Ayt7tGCEsOg]Evidence Quote
“which probably explains the half in of water column that I've got on the supply side alone for this system”
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Floor Ducts Gone Wild! #HVAC wood registers may block airflow and make a ton of noise— Home PerformanceCreated: 8/13/2026, 9:48:20 AM
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