Residential in-duct humidifiers, I’ve installed many though also got complaints that although the customer wants to see 40 RH, they often don’t get more than 30-35 with the humidifier and furnace fan motor running non stop How can we explain this? The humidifier is not under sized, mostly over sized if anything, thanks for your input

Posted by AdvancedHeatCool at 2021-03-15 17:40:58 UTC