Are you a subscriber but don’t have an online account?

Register for full online access.

 
 
 
 

Other stories by Pat Huelman

  • Q&A: Makeup Air for Fireplaces and Exhaust Fans

    Q: In a house I am building, I need to provide adequate makeup air for a fireplace and a 600-cfm cooktop exhaust fan. How do I size a passive duct to introduce exterior makeup air into the house?