claw foot bathtub
Photo: Dave King/Getty Images
« »

Don't Run Out of Hot Water

Adding a soaker tub or multi-head shower? You may need a bigger water heater. Tank-style heaters are labeled with a first hour rating (FHR), a measure of how much hot water it produces in an hour. To help determine your FHR, use the list below to calculate your family's hot-water consumption in the bath each morning. Visit the U.S. Department of Energy for more info on FHR.

Showering: 12 gallons per person
Bathing: 9 gallons a person
Shampooing hair: 4 gallons a person
Washing hands and face: 4 gallons a person
Shaving: 2 gallons a person
Ask TOH users about Bathroom

Contribute to This Story Below