What size tankless water heater depends on your gpm at peak hot water demand.
Calculate size of tankless water heater.
Rheem tankless electric water heaters make it easy to enjoy instantaneous continuous hot water space saving design and significant energy cost savings.
Tankless water heaters are much smaller than units with a storage tank allowing them to be wall mounted.
Whereas with tankless water heaters it s more important to know how many fixtures it s required to serve simultaneously.
Once you have your total flow rate and the required temperature rise you can find the right size tankless water heater for your home.
Use our sizing calculator to determine your.
Tankless water heater sizing calculator.
I live in boston so my groundwater temperature is around 47 f.
Tankless water heaters are rated by the maximum temperature rise possible at a given flow rate.
Just follow the three simple steps below to choose the right model and size you need.
How to determine the required size of a tankless hot water heater.
Looking to purchase a new tankless water heater but having trouble figuring out what size or model you need.
Tankless water heater sizing calculator.
Measure your cold water temperature.
Determine the mounting space.
Below we ve highlighted what size water heater you would need in our example of 6 5 gpm at a 63 f temperature rise.
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Simply locate the appropriate water heater sizes on ecomfort using your information.
With traditional storage water heaters you could calculate the size of it based on the number of family members.
Choose the right tankless electric water heater for you.
Use our handy calculator to determine your needed flow rate and temperature rise then find models that match your needs.
As an example i will show you what came out for me.
Tankless water heater sizing calculator.
Sizing tankless or demand type water heaters tankless or demand type water heaters are rated by the maximum temperature rise possible at a given flow rate.
Determine the combined flow rate in gpm.
Where are you located.
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.
And your temperature rise which is determined by your incoming water temperature subtracted from your hot water setting.
Determine your water flow rates.
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.
