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A tankless water heater sizing calculator determines the required flow rate (GPM) and temperature rise to select the correctly sized unit. Flow rate is the sum of all simultaneous hot water uses; a shower (2.5 GPM) + dishwasher (1.0 GPM) requires a unit capable of 3.5 GPM at the required temperature rise.
Trinn-for-trinn guide
- 1Input base values
- 2System computes results
Løste eksempler
Inndata
Enter the required values
Resultat
Result computed by the formula
Vanlige feil å unngå
- ✕Precision loss
- ✕Ignoring variables
Ofte stilte spørsmål
What does this calculator do?
Input base values
How do I use this calculator?
System computes results
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