Tankless water heaters heat only as much water as your family needs. They heat the water when it’s being used. This on-demand heating makes the units more energy efficient and provides endless hot water for your home. Energy rebates may be available.

Tank water heaters typically have a capacity of 30 to 80 gallons. The capacity your home will need depends on the size of your household and how much hot water you use. Using natural gas, electricity or propane, these tanks heat water anytime the water temperature cools in the tank, below a certain temperature. That means you’re paying for hot water whether you need it or not.