Specification

Single Family
Dwelling Air
Leakage by Type
Per D.O.E.
Fireplace=26% of air
leakage!!
Fans and vents
4%
Electrical
outlets
2%
Plumbing
Penetrations
7%
Windows
10%
Doors
11%
Ducts
15%
Floors, walls,
and ceiling
25%
Fireplace
26%