Once you have your total flow rate and the required temperature rise you can find the right size tankless water heater for your home.
Water heater room size.
X 10 1200 watts.
Below we ve highlighted what size water heater you would need in our example of 6 5 gpm at a 63 f temperature rise.
If you re going with a storage tank water heater here s a rough guide for storage tank capacity.
That s the measure of how much hot water the heater will deliver during a busy hour such as first thing in the morning.
Room for example requires a 1200 watt space heater 120 sq.
Simply locate the appropriate water heater sizes on ecomfort using your information.
You can estimate the necessary tank capacity in gallons based on the number of people in the house.
Usually most homeowners find that either a 40 or 50 gallon hot water tank is the best fit for their needs.
2 3 people you ll need at least a 40 gallon capacity tank.
For a tank style heater household size is a simple indicator of hot water needs.
This is the quickest and easiest way to size a space heater but unfortunately there are a number of factors that can throw it off and have to be taken into account.
The good news is that just by following a few guidelines you can find the perfect size water heater.
Typically residential water heater sizes range from 40 to 100 gallon tanks.
Determine the home s fhr or first hour rating.