Its evident from this chart that a family of 5 which is very common in the us requires a 56 80 gallon size water heater.
Best size water heater for family of 5.
This rheem performance platinum may possibly be the best 50 gallon gas water heater for medium sized households.
For the average family of four a 40 gallon water heater like a.
Smith s proline power vent gas water heater available from supplyhouse should get the job done.
Now let s get back to the original question about sizing a tankless water heater.
How to size a tankless water heater.
The good news is that just by following a few guidelines you can find the perfect size water heater.
Determine the home s fhr or first hour rating.
A family of 5 people will require at least a 6 gpm tankless water heater.
The rheem natural gas 40 gallon water heater uses a large tank that is big enough for two to four people for daily water needs.
40 gallons family of 3 4.
The push button ignition system makes the startup process quick and easy.
If you intend to use a tank water heater use these recommendations as a guide to finding the size you need.
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.
Minimum gallon capacity recommendations.
For example a family of 5 or more could live very comfortably on a 30 gallon tank water heater while a household of 2 might find that a 30 gallon tank can t provide enough hot water for their needs.
The savings continue with a maintenance free combustion air intake system and self diagnostic gas control valve.
50 gallons family of 5 or more.
But it shouldn t be your.
In my opinion the best gas option would be this.
While traditional tank water heaters are calculated by your family size a tankless water heater is calculated by the quantity and types of fixtures or appliances it will serve.
However keep in mind that this is a very loose estimate and it may not be accurate for your household s water usage.
Here are our recommendations for the best tankless water heaters.
Family of 1 2.
Storage tank hot water heaters are sized based on btu input and capacity in gallons.
Beginning with a 40 000 btu hour low nox burner this heater provides ample water at a lower cost than older models.
The first factor in choosing a tankless water heater is calculating the size of your hot water heater.