1. Improper Ventilation

Generators, like other internal combustion engines, emit exhaust while running. This exhaust contains carbon monoxide, which can be deadly without proper ventilation. Unfortunately, homeowners rarely consider safe generator placement during a chaotic weather event or other power outages.

Nick Barber, co-founder of Prepaid Electricity, says homeowners often make the mistake of placing their generators in garages, even if the door is open, basements, or other enclosed spaces without adequate ventilation, which can lead to carbon monoxide buildup. He recommends always placing generators outdoors, at least 20 feet away from windows, doors, and vents.

2. Overloading Circuits

Just like the outlets in your house, the outlets on a generator can only handle a limited amount of power draw. If you overload the circuit, it could trip the breaker, damage your appliances, or even damage your generator.

Barber says this is typically caused by connecting too many appliances directly to the generator at once.

To avoid overloading your generator's circuit, don't try to power too many devices, especially if you're running high-power appliances like refrigerators, dryers, AC units, and similar appliances.

Just because your generator can handle the power draw doesn't mean your extension cord can. Always use properly rated outdoor extension cords when using a generator, as damaged or under-rated extension cords can overheat and become a fire hazard.

3. Using Outdated Equipment

We're all for getting the most use out of tools for as long as possible, but you might want to consider replacing your old generator if it's no longer reliable.

"Old generators often have fuel leaks and other electrical issues. For any generator you plan on using, make sure it's regularly serviced so that it is in optimal working condition at all times," recommends Barber.

If your generator has cracked fuel lines, corrosion, frayed cords, or other damage, it might be due for a replacement. For best results, regularly test and inspect your generator, and refer to the other generator prep tips below.

4. Storing Fuel Incorrectly

Lastly, Barber says that one of the main generator safety mistakes homeowners make has little to do with the generator itself and everything to do with how they store their fuel supply. Gasoline is highly flammable, and it should be handled and stored with extreme care.

Additionally, gasoline should be placed only in approved containers, stored away from heat sources and living areas, and kept in well-ventilated areas.

Barber recommends going over generator safety tips with your family, to ensure all members of your household are prepared in case of a power outage.

How to Prep a Generator for Emergency Use

To ensure your generator starts up and runs smoothly when you need it, take time to prep it beforehand and maintain it regularly, even if you haven't used it recently. Below are some generator maintenance tips you should follow.

• Read the owner's manual. We're all guilty of buying products and promptly tossing the owner's manual in the garbage, but your generator's owner's manual is worth reading to ensure you know how to operate it safely and effectively. If you've already tossed it out, don't worry. Most product manuals are available online.
• Test it every few months. Even if you haven't used your generator in years, Barber says you should regularly test it by ensuring it starts and runs, and that all outlets are functional. In fact, if you haven't used it recently, it's even more important to start it up and test it.
• Keep fuel on hand. A generator is only useful for as long as the fuel supply lasts. If you got snowed in or somehow lost access to a gas station, you'd be out of luck. Refer to the owner's manual to estimate how much gas is reasonable to keep on hand for your generator.
• Stabilize fuel and replace if necessary. Fuel only lasts a few months in storage, but you can extend its shelf life with a suitable fuel stabilizer. If you suspect your fuel has gone bad, discard it safely and replace it.
• Install a switch. Barber recommends that homeowners hire a licensed electrician to install a transfer switch, which allows the home to seamlessly and safely switch to generator power and eliminates the need for multiple extension cords running throughout the house. Professional installation helps ensure generators don't dangerously backfeed into utility lines, which poses a safety risk to utility workers and could damage your electrical system.