How they work: Tank water heaters typically hold between 20 and 80 gallons of hot water (around 120 degrees Fahrenheit) in a storage tank. They are fairly large and require a bit of space within ...

Storage tank water heaters, which are less expensive to purchase and install, might pique the interest of homeowners looking for a smaller price tag upfront. Although they require fewer Btu/h to ...

Rather than storing water, tankless water heaters use heating coils to heat the water as you need it. They’re more energy-efficient than a storage tank but provide only a limited flow of hot ...

For Tank Water Heaters: A 30-40 gallon tank is usually enough for 1-2 people, a 40-50 gallon tank works for 3-4 people, and larger households might need a 50-80 gallon tank.