5 Things You Should Never Use an Extension Cord For
- Trotter Electric
- Apr 22
- 4 min read
(And What to Do Instead)
We’ve all done it—reached for an extension cord to solve a power problem on the fly. While convenient in the short term, extension cords were never meant to be long-term solutions. In fact, they can create serious safety risks if used improperly, especially with devices that draw a lot of electricity.
At Trotter Electric, safety isn’t just a recommendation—it’s our standard. As licensed professionals serving Arkansas homes and businesses, we believe your electrical setup should power your life, not endanger it. So let’s walk through 5 common extension cord mistakes—and what you should do instead to keep your home safe and code-compliant.
Extension Cord 101: Know the Key Before You Plug In
Not all extension cords are the same. Before we dive into the list, here’s a quick breakdown of how to read an extension cord’s rating “key”—and why it matters:
Length:
The longer the cord, the more resistance it creates, which can lead to voltage drop and overheating. Try to use the shortest cord possible.
Gauge (AWG):
Lower numbers mean thicker wires. A 12-gauge cord handles more current than a 16-gauge cord. For heavy-duty use, stick to 12 or 14 gauge.
Amperage Rating:
Always check that your cord can handle the amperage of the device you’re plugging in. If your appliance draws 15 amps, but your cord is only rated for 10, that’s a fire waiting to happen.
Indoor vs. Outdoor Use:
Never use an indoor cord outdoors. Look for “W” or “W-A” on the jacket for outdoor-rated cords.
UL/ETL Label:
Only use cords that are UL (Underwriters Laboratories) or ETL certified for safety.
Even with the right cord, extension cords are still meant for temporary use only. Now, let’s talk about when they should never be used—and what to do instead.
1. Major Appliances
(Refrigerators, Microwaves, Freezers, etc.)
These appliances are essential to daily life—but they’re also power-hungry. Plugging them into an extension cord might seem harmless, but it actually puts your appliance, your wiring, and your safety at risk.
Why it’s a problem:
Major appliances require a stable, uninterrupted current that most extension cords—regardless of rating—aren’t designed to deliver for extended periods. Underrated cords can overheat, damage circuitry, or cause fires. And long cords? They reduce voltage efficiency dramatically.
Better solution:
Let us install a properly grounded, dedicated outlet for your appliances. At Trotter Electric, we can evaluate your kitchen or utility area and make sure your wiring supports the devices you rely on every day—safely and efficiently.
2. Space Heaters
Cold days can call for a little extra warmth, but using an extension cord with a space heater is one of the biggest electrical hazards you can create in your home.
Why it’s a problem:
Space heaters often draw 1,500+ watts. Most extension cords—even many “heavy-duty” ones—can’t handle that kind of load without overheating. Cords hidden under rugs or behind furniture don’t get airflow, so heat builds quickly. Plus, many low-gauge cords used in households aren’t rated for that kind of continuous draw.
What to do instead:
Always plug space heaters directly into a wall outlet. And if your room doesn’t have an accessible one? We can help. Trotter Electric will install new outlets or even dedicated circuits to safely power your space heater—without risking a fire.
3. Air Conditioners
(Window or Portable Units)
Air conditioners demand high amperage, especially during startup. Even if you’re using a short, heavy-duty cord, it may not be enough.
Why it’s a problem:
Air conditioners can spike in power draw by 2–3 times their normal running load during startup. If your extension cord isn’t rated to handle those spikes, the insulation can melt or the cord can catch fire. Many common cords are simply too long, too narrow, or too weak.
Let us help:
We specialize in installing properly grounded, GFCI-protected outlets where your AC needs to be. We’ll even evaluate your breaker and wiring to ensure it can handle the extra load—no cords required.
4. Garage Tools & Outdoor Equipment
(Table Saws, Air Compressors, etc.)
Need to power a saw, drill, or blower and reaching for a cord? Pause. Many of these tools require more current than a standard extension cord can provide.
Why it’s a problem:
Most garage tools are designed for short bursts of high amperage. If you’re using an under-rated or overly long cord (especially the thin orange ones), it can overheat fast. Plus, cords exposed to rough concrete, sharp edges, or weather can degrade quickly—leading to shock or fire hazards.
How ratings matter:
If you absolutely must use a cord temporarily, choose a 12- or 14-gauge cord under 50 feet with a rating equal to or higher than your tool’s amperage. But ideally...
Smarter solution:
Trotter Electric installs outdoor-rated, weather-resistant GFCI outlets and wiring that meets code—so you can safely use tools, charge equipment, or run outdoor power without compromising safety.
5. Extension Cords as Permanent Wiring
Here’s a simple rule of thumb: if you need it daily, you need an outlet—not an extension cord. Running cords under rugs, out windows, or through ceilings may seem like a shortcut, but it’s a serious fire risk and code violation.
Why it’s a problem:
Cords were never designed to replace hardwired solutions. They degrade faster, especially when stepped on, bent, or exposed to moisture and heat. Even “heavy-duty” cords deteriorate over time—and if it’s not rated for in-wall or permanent use, it's a fire risk.
Need more reach?
Trotter Electric offers custom wiring solutions and outlet installation that fit how you live—whether that’s mounting outlets above counters, in closets, garages, or even outdoor entertainment spaces.
When in Doubt, Call a Pro
Extension cords are meant for temporary fixes—not as part of your everyday life. If you're relying on them regularly, your home might need an electrical update.
At Trotter Electric, we don’t just fix problems—we design smarter electrical systems tailored to your lifestyle. Whether you need more outlets, updated wiring, or safer garage power, we’re here to help.
Schedule your consultation today and take the first step toward a safer, smarter, and fully powered home—without the risks of extension cords.
Trotter Electric.
7800 Collier St, Fort Smith, AR 72916