When you say you leave the blower running all the time do you mean the furnace blower or the HRV ? I have an HRV which I discovered today runs all the time.
I started asking my customers if they have humidifiers today and so far found two at the same place that actually had the same aprilaire. One says it does help one says it does nothing. The one that says it helped says they leave the blower running all the time as well but she said the humidistat only gets to about 28% humidity.
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Matt