Negative pressure in 15.7 ACH 50 home – does it matter? Zone 5a CT
I am tightening up my home after a licensed RESNET HERS rater came out and gave me the bad news (see title of this post). Our furnace has also given up the ghost, so (fortunately?) I am able to replace that at this time, too.
After reading several articles on GBA regarding negative pressure in a home, I realize mine is guilty of this when the bath fan is running (we have only one bath in the home). It is a Panasonic WhisperGreen, which we run during daytime hours on high (110 CFM) as a way to improve our IAQ.
We will be getting an ERV (probably the Minotair) in the near future, but is there a way that I should be running the fan to both improve IAQ, but minimize negative pressure? Does it matter that there is negative pressure during the day? Does it help or hurt the IAQ?
Forgive me, but this part of the HVAC puzzle is all new to me.
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