But if you only need a loose estimate of what size you need versus an exact calculation follow these guidelines.
What is the right size water heater for a family of 4.
If your family size is 5 or more you ll need an 80 gallon tank electric or a 50 gallon tank natural gas or liquid propane.
This is because water heater size directly impacts its cost.
If you intend to use a tank water heater use these recommendations as a guide to finding the size you need.
Below we ve highlighted what size water heater you would need in our example of 6 5 gpm at a 63 f temperature rise.
Family of 1 2.
Before buying a tank water heater most homeowners want to get a rough idea of the water heater size their family needs.
Before finding the right size water heater you must determine which type you re going to purchase.
We ll go over the math with you and make sure you find a hot water heater that s the perfect size for your family.
50 gallons family of 5 or more.
30 gallons family of 2 3.
40 gallons family of 3 4.
Once you have your total flow rate and the required temperature rise you can find the right size tankless water heater for your home.
Minimum gallon capacity recommendations.
For the average family of four a 40 gallon water heater like a.
30 40 gallons for 2 to 3 people.
Determine the home s fhr or first hour rating.
The first hour rating is the number of gallons of hot water the heater can supply per hour starting with a tank full of hot water.
To properly size a storage water heater for your home including a heat pump water heater with a tank use the water heater s first hour rating.
Well to get an accurate answer you d have to calculate out how much hot water you typically use during your busiest hot water using hour.
Therefore to size a demand water heater you need to determine the flow rate and the temperature rise you ll need for its application whole house or a remote application such as just a bathroom in your home.
If you want help calculating what size water heater your family needs or need more information about the pros and cons of a tankless water heater contact us at the plumbing source.
The bigger the water heater tank the more expensive it will be.
The good news is that just by following a few guidelines you can find the perfect size water heater.
Simply locate the appropriate water heater sizes on ecomfort using your information.
How to determine the size of a water heater tank.
But it shouldn t be your.
Smith s proline power vent gas water heater available from supplyhouse should get the job done.
For 1 to 2 people.