Use this simple guide to select the right size water heater. Enter the answers in the boxes, then total them up.
Number of people in household ________ Number of tubs and/or showers ________ Dishwasher (add 1) ________ Washing machine (add 1)________ Whirlpool tub (add 1)________ Miscellaneous additions* ________
* Miscellaneous additions
Add 1 to "miscellaneous additions" if you find yourself running out of hot water. Another solution would be to upgrade to a quick-recovery and/or high-efficiency water heater.
If you want a more efficient water heater, consider an upgrade to a high-efficiency heater.
If there is a whirlpool tub, use a 50-gal. or higher gas or electric heater as a minimum.
After totalling the boxes, use the following chart to determine the size of water heater necessary.
GAS 4 or less: 30 gallon water heater 5 to 7: 40 gallon water heater 8 or more: 50 gallon water heater
ELECTRIC 4 or less: 40 gallon water heater 5 or 6: 50 gallon water heater 7 or 8: 65 gallon water heater 9 or more: 80 gallon water heater
Good rule of thumb: THINK BIG! If you have the room, always select the larger water heater!