This list was compiled after extensive research into the fuel type, flow rate, size, and the number of fixtures to which each tankless water heater can supply hot water simultaneously. Look at ...

In areas with low natural gas prices, a gas water heater may be more economical month-to-month, especially for families with high hot water usage. Electric models will be less expensive to operate ...

This can be prevented by setting the water heater to a temperature where the bacteria Legionella cannot thrive. The Occupational Safety & Health Administration (OSHA) recommends water heaters be set ...

Essentially, the standards call for new tankless (sometimes called instantaneous) gas water heaters to use less energy than the least efficient models currently available, according to the Appliance ...

Find out about the hot water systems available for your home or business. Popular renewable energy systems are solar and heat ...