Table 4 – Calculated annual savings per ft2 with well-insulated and sealed ducts, or no ducts, in the attic
(Values with Time-of-Day pricing shown for zones 1 and 2)
|
Insulated and well-sealed ducts |
No ducts |
||||
|
R19 Attic Insulation |
Code insulation, |
R19 Attic Insulation |
Code-level Attic Insulation |
||
Zone |
Add RB, add insulation |
Add RB |
Add RB |
Add RB, add insulation |
Add RB |
Add RB |
Miami (1) |
$0.05($0.06) |
$0.03($0.04) |
$0.03($0.04) |
$0.03($0.04) |
$0.01($0.02) |
$0.01($0.01) |
Austin (2) |
$0.07($0.05) |
$0.03($0.03) |
$0.03($0.03) |
$0.04($0.03) |
$0.01($0.01) |
$0.01($0.01) |
Atlanta (3) |
$0.06 |
$0.02 |
$0.02 |
$0.04 |
$0.01 |
$0.01 |
Baltimore (4) |
$0.11 |
$0.02 |
$0.01 |
$0.07 |
$0.01 |
$0.00 |
Chicago (5) |
$0.10 |
$0.01 |
$0.01 |
$0.07 |
$0.00 |
$0.00 |
Minneapolis (6) |
$0.12 |
$0.01 |
$0.01 |
$0.09 |
$0.00 |
$0.00 |
Fargo (7) |
$0.10 |
$0.01 |
$0.01 |
$0.07 |
$0.00 |
$0.00 |
Fairbanks (8) |
$0.14 |
$0.01 |
$0.01 |
$0.11 |
$0.00 |
$0.00 |