Water heating is typically the second largest use of energy in your home. You can
use the Comparison Tool to compare the annual energy use and cost for a range of
water heaters. You can also learn how quickly a new water heater will pay for itself
in lower energy costs. Choose "EXISTING vs. NEW" to compare your existing water
heater with a new water heater. Select "NEW vs. NEW" to compare two new water
heaters with each other.