Choose the right tankless electric water heater for you.
Electric water heater sizes.
Below we ve highlighted what size water heater you would need in our example of 6 5 gpm at a 63 f temperature rise.
We already covered gpm.
Family of 1 2.
However you still need to be mindful of two factors.
If you intend to use a tank water heater use these recommendations as a guide to finding the size you need.
Before we get to how to use the calculator to size a tankless water heater let s talk about the factors that go into understanding what size inline water heater you need.
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.
Since tankless water heaters don t store water you don t have to worry about capacity size.
Gas tankless water heaters are able to produce a larger temperature rise per gpm than electric models.
Tankless water heaters are intended to heat potable drinking water only and the inlet water to a tankless unit should not be pre heated.
You can estimate the necessary tank capacity in gallons based on the number of people in the house.
40 gallons family of 3 4.
Rheem tankless electric water heaters make it easy to enjoy instantaneous continuous hot water space saving design and significant energy cost savings.
30 gallons family of 2 3.
Flow rate and temperature rise.
Sizing storage and heat pump with tank water heaters.
Tankless water heater sizing calculator.
1 or 2.
Pro size is intended to assist in selecting water heaters or boilers that best meet the specific job requirements.
Now you need to understand what temperature rise means.
For a tank style heater household size is a simple indicator of hot water needs.
Smith pro size sizing program is a tool that can be used to estimate water heater requirements for many common applications.
Once you have your total flow rate and the required temperature rise you can find the right size tankless water heater for your home.
Just follow the three simple steps below to choose the right model and size you need.
Smith proline family of electric water heaters offers a wide range of innovative solutions for your unique lifestyle needs.
Discover how electric water heaters work to determine if this solution is right for you.
50 gallons family of 5 or more.
Most demand water heaters are rated for a variety of inlet temperatures.
Minimum gallon capacity recommendations.