Industrial Heater Sizing Calculator with JavaScript

A tutorial shows how to build an industrial electric heater sizing calculator with HTML, CSS, and JavaScript.

The calculator estimates required heater power in kilowatts from water volume, starting and target temperatures, heating time, and a safety factor.

It uses the heat energy formula and power calculation to translate temperature rise and time into a practical sizing estimate.

The example helps prevent underheating, energy waste, and control problems when selecting heater capacity.