To maintain continuous positive home pressurization (1-2 Pascal above ambient) using supply-only ventilation, the air handler must run continuously and the supply duct must remain open at all times, which creates ongoing energy consumption and dehumidification requirements.
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Unidentified Speaker — Home Pressure Effects of Unbalanced ERV, Ventilating Dehumi… [7nhXP3v5Zy0]Evidence Quote
“if you want to constantly have control over the pressure in your home and constantly have it be a high pressure with respect to outside and high being just a pascal or two you would need to have your air handler running all the time and you need to have that thing open all the time [6:49]”
Source
Home Pressure Effects of Unbalanced ERV, Ventilating Dehumidifier, or Supply-Only Ventilation— Home PerformanceCreated: 8/13/2026, 3:25:18 AM
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