Warming tips for cozy home heating
Guide

Danger lurking: can space heaters evade extension cord woes?

Rob is a seasoned home improvement writer with over 15 years of experience researching and recommending products for the home. Prior to starting Nurturing Homeaid, he wrote extensively for This Old House magazine and has been featured as a home expert on several TV and radio programs. An avid DIY-er,...

What To Know

  • If you need to temporarily extend the reach of your space heater, use a heavy-duty extension cord with a wire gauge of 14 or 12 AWG.
  • Can I use a 16-gauge extension cord with a space heater.
  • Can I use a regular outlet to plug in a space heater.

As winter’s icy grip tightens, the allure of space heaters grows irresistible. These portable warmth dispensers offer a quick and cozy solution to combat the biting cold. However, a common question arises: can space heaters be safely paired with extension cords? Let’s delve into the complexities of this electrical conundrum.

Understanding the Electrical Equation

Space heaters are notorious energy guzzlers, drawing significant amperage from your electrical outlets. Extension cords, on the other hand, can introduce additional resistance into the circuit, potentially leading to overheating and fire hazards.

The Safety Imperative

The National Fire Protection Association (NFPA) strongly advises against using extension cords with space heaters. This is primarily due to the risk of:

  • Overheating: Extension cords with inadequate wire gauge can overheat, creating a fire hazard.
  • Voltage Drop: The added resistance of an extension cord can cause a voltage drop, reducing the heater’s efficiency and potentially damaging the appliance.
  • Electrical Arcing: Loose or damaged connections in extension cords can create electrical arcs, sparking a fire.

Exceptions to the Rule

While the general consensus is to avoid using extension cords with space heaters, there are certain exceptions when it becomes necessary:

  • Temporary Use: If you need to temporarily extend the reach of your space heater, use a heavy-duty extension cord with a wire gauge of 14 or 12 AWG.
  • Outdoor Use: For outdoor use, employ a waterproof extension cord specifically designed for outdoor applications.

Choosing the Right Extension Cord

If you must use an extension cord, follow these guidelines:

  • Wire Gauge: Opt for a heavy-duty extension cord with a wire gauge of 14 or 12 AWG.
  • Length: Use the shortest possible extension cord to minimize voltage drop.
  • Safety Features: Look for cords with surge protectors and overload switches for added protection.

Proper Usage

When using an extension cord with a space heater:

  • Inspect the Cord: Check for any damage or loose connections before each use.
  • Fully Uncoil the Cord: Uncoiling the cord reduces resistance and prevents overheating.
  • Do Not Overload: Plug only the space heater into the extension cord. Avoid connecting multiple appliances to a single cord.

Safer Alternatives to Extension Cords

If possible, consider these safer alternatives to using extension cords with space heaters:

  • Dedicated Circuit: Install a dedicated electrical circuit for your space heater to provide adequate power.
  • Surge Protector: Use a surge protector with a high joule rating to safeguard your space heater from power surges.
  • Fire Extinguisher: Keep a fire extinguisher nearby in case of emergencies.

Top Questions Asked

1. Why are space heaters not recommended with extension cords?
Answer: Extension cords can overheat, cause voltage drop, and create electrical arcs, posing fire hazards.

2. Can I use a 16-gauge extension cord with a space heater?
Answer: No, a 16-gauge extension cord is too thin and can overheat. Use a 14 or 12 AWG cord instead.

3. How do I know if my extension cord is safe for a space heater?
Answer: Check the wire gauge (14 or 12 AWG) and look for safety features like surge protectors and overload switches.

4. Can I use a regular outlet to plug in a space heater?
Answer: Yes, but only if the outlet is not overloaded and the space heater is drawing less than 15 amps.

5. How close can I place a space heater to flammable materials?
Answer: Keep the space heater at least 3 feet away from flammable materials like curtains, furniture, and bedding.

Was this page helpful?

Rob Sanders

Rob is a seasoned home improvement writer with over 15 years of experience researching and recommending products for the home. Prior to starting Nurturing Homeaid, he wrote extensively for This Old House magazine and has been featured as a home expert on several TV and radio programs. An avid DIY-er, Rob takes pride in testing out the latest tools and gadgets to see how they can make home projects easier. When it comes to heating systems, he's evaluated over 50 different furnace and boiler models over the years. Rob founded Nurturing Homeaid with his business partner Jim in 2020 to provide homeowners with genuine product recommendations they can trust. In his free time, Rob enjoys remodeling old homes with his family and traveling to visit architectural landmarks across the country. He holds a bachelor's degree in Journalism from Syracuse University.
Back to top button