How much is enough? You’ll want a hot water heater that keeps enough hot water flowing to meet your household needs at times of peak hot water use. However, heating more water than you need will waste energy. This chart can help you figure that out what size is right for you.
What Size Do I Need?
People in Household
Hot Water Use
Tank Size (Gallons)
1-2
Light
Moderate
Heavy
40
40
40
3-4
Light
Moderate
Heavy
40
40-50
50
5-6
Light
Moderate
Heavy
50
50-80
80
7+
Light
Moderate
Heavy
80
80-100
100
did you know?
It pays to fix leaky faucets! a 1-per-second drip can waste 7 gallons of water per day.
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