⚠️ Safety & Code Basics
The safety rules and code basics every homeowner should know before touching anything electrical.
15 guides · page 2 of 2
Knob-and-Tube Wiring: The 100-Year-Old System in Older Walls
If your house predates WWII, some circuits may run on ceramic knobs and tubes — a system that was well-made for its era and wrong for ours. Here's how it works, the real risks, and how to prioritize replacement.
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Aluminum Wiring (1965–1973): What It Means If Your House Has It
For about eight years, houses were wired with aluminum instead of copper — and the connections have been causing trouble ever since. Here's how to know if you have it, the real risk, and the repairs that actually work.
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Extension Cord Warm or Hot? You're Being Warned
A warm extension cord is a cord being pushed past what it can carry. Here's how to match cords to loads, why space heaters and cheap cords are a fire recipe, and what to use instead.
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