| Model |
Energy Factor |
Cost to Operate* |
Annual Savings¹ |
Annual Savings² |
2400E/EO
|
0.80 |
$355 |
$163 |
$221 |
1600P/PS and 125BO
|
0.79 |
$387 |
$131 |
$190 |
| 1600H |
0.84 |
$364 |
$154 |
$213 |
| 125FX |
0.81 |
$377 |
$141 |
$199 |
| 40-gallon tank |
0.59 |
$518 |
|
|
| 75-gallon tank |
0.53 |
$577 |
|
|
*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 - $1.42/therm for natural gas and $1.95/gallon for propane.
Annual Savings¹ - Compared to a new 40-gallon tank water heater of the most popular model.
Annual Savings² - Compared to a new 75-gallon tank water heater of the most popular model.