Your Home 
efficiency tips for water heaters

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.