Point-of-Use Water Heater Calculator

Size electric point-of-use water heaters based on flow rate, temperature rise, and electrical requirements.

Required flow rate.
GPM
Cold water inlet temperature.
F
Desired outlet temperature.
F

Results

Required kW-kW
Current at 240V-A
BTU/hr Required-BTU/hr
References: ASPE Data Book Vol. 4; UPC/IPC