This is correct.We're in the Midwest and had gas furnaces with humidifiers before installing our ducted heat pumps three years ago. We always struggled to maintain acceptable humidity in the house during the winter even though we had two bypass humidifiers. When planning our energy upgrades, we learned that humidity escapes in the winter due to holes in the building envelope. We had a blower door test with thermal imaging done to identify the holes. We then spent some time air sealing. Result is we have consistent humidity in the winter without having to install humidifiers. Even on the coldest days it's great and no longer have to worry about water collecting on the glass.
Colder air has lower relative humidity, so when the building envelope is leaky it not only puts greater load on the HVAC system, it dries the air out more.
Statistics: Posted by Saving$ — Fri Nov 01, 2024 12:47 am — Replies 15 — Views 1246