What is the BTUH output of an electrical heater rated at 15 KW?

To determine the BTUH (British Thermal Units per hour) output of an electrical heater rated at 15 kilowatts (KW), you can use the conversion factor where 1 kilowatt is equal to approximately 3,412 BTU.

To calculate the BTUH:

1. Start with the kilowatt rating of the heater: 15 KW.

2. Multiply by the conversion factor: 15 KW × 3,412 BTU/KW = 51,180 BTU.

This calculation shows that the output of the heater in BTUH is 51,180, making it the correct answer. The BTUH measurement reflects the thermal energy output of the electrical heater and is vital for understanding its heating capabilities in practical applications.