Water heating is the second-largest energy cost for U.S. households. But you can save with a more efficient water heater, ...

If your water ... water heater that heats the water stored in its tank with a heat pump rather than natural gas. The heat pump technology pulls energy from the air and comes in 50 and 80 gallon ...

they said they were debating between the 80- and 74-gallon tank sizes and were curious which sizes and models were eligible for tax rebates. Heat pump water heaters are a great way to save money ...