| Tankless water heaters are rated by the
maximum temperature rise possible at a given flow rate. 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. It is important to note that you
should never try and save money by undersizing your tankless water heater.
Click Here
to read more about how to size the right tankless water heater for your
home. Other features you will need to consider are:
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