| Model |
Energy Factor |
Cost to Operate* |
Annual Savings¹ |
Annual Savings² |
| AE115 |
0.90 |
$478 |
$0 |
$22 |
| AE125 |
0.94 |
$458 |
$20 |
$43 |
| 50-gallon tank |
0.90 |
$478 |
|
|
| 80-gallon tank |
0.86 |
$500 |
|
|
**The above charts represent approximate energy savings figures based on U.S. Dept. of Energy test method for water heaters. The energy costs used are the 2006 averages as published by DOE - $0.098/kWh.
Annual Savings¹ - Compared to a new 50-gallon storage tank with Energy Factor .90 (most popular model).
Annual Savings² - Compared to a new 80-gallon storage tank with Energy Factor .86 (most popular model).