Understanding Wire Gauges | Ask This Old House

Summary by Krater

The hosts explain American Wire Gauge (AWG) sizing, demonstrating various wire sizes and explaining which gauges are suitable for specific household appliances and circuits.

From the video

Answers: What wire gauge size do I need for different household appliances?

• American wire gauge sizes
• Electrical wire applications
• Conductor counts in wire
• Circuit sizing and power needs

What it concludes

• 18 AWG wire is used for low-power applications like thermostats.
• 14 AWG wire is used for standard lighting and bedroom receptacles.
• 12 AWG wire is used for high-draw kitchen and laundry appliances requiring up to 20 amps.
• 10 AWG wire is used for appliances drawing up to 30 amps like dryers and outdoor AC units.
• 6 AWG wire and larger single conductors are used for heavy loads like electric ovens and level 2 car chargers.