Space Heater Circuit Load Calculator

Determine if a home circuit can safely handle one or more space heaters, preventing overloads and fire hazards.

Calculate total wattage on a 120V household circuit and compare against the NEC 80% continuous load rule. Helps avoid tripped breakers and fire risk when using space heaters.

Key Features

  • 80% continuous load safety check
  • Dynamic list of other devices
  • Color-coded load indicator
  • Quick presets for common scenarios

Other Devices

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