What Are the Standard Sizes of Gas Water Heaters?

What Are the Standard Sizes of Gas Water Heaters?

As of 2015, gas water heaters are available in sizes ranging from 30 to 70 gallons, but 40- and 50-gallon devices are the minimum standard capacities recommended for most homes. The size needed primarily depends on the number of people living in the home.

A 40-gallon tank is considered the minimum capacity for two to four people, and a 50-gallon tank is the minimum needed to support five or more people. A home's fixtures also need to be considered when choosing a new water heater. Deep-soaking tubs hold more water than regular tubs, and older showerheads use more water than newer fixtures, increasing the total household demand for hot water.