When the lights go out, your generator becomes your lifeline, keeping refrigerators cold, medical devices running, and your family comfortable. But while these machines are incredibly useful, improper use can lead to serious hazards. If you’re using or considering a backup power system, understanding generator safety isn’t optional—it’s essential. In this blog, we’ll cover key generator safety tips every homeowner should know before, during, and after a power outage.
Why Generator Safety Matters
Generators provide emergency power when you need it most, but they also come with risks. Carbon monoxide poisoning, electrical shock, and fire are just a few of the dangers linked to improper generator use. These risks can be minimized with the right setup, regular maintenance, and safe operating habits.
Whether you own a portable unit or a whole-house standby system, generator safety should always come first.
Safe Setup Starts Before the Storm
Choose the Right Generator
Selecting the proper size and type of generator can help prevent overloads and dangerous conditions.
- Portable Generators: Best for temporary, limited use (e.g. powering a fridge or a few lights)
- Whole-House Generators: Automatically kick in when the power goes out and are professionally installed into your home’s electrical system
If you’re unsure what fits your home best, talk to a trusted dealer or installer. A poor match can cause performance issues, or worse, safety hazards.
Install a Transfer Switch
One of the most overlooked generator safety upgrades is a transfer switch. This device connects your generator to your home’s electrical panel and prevents electricity from back feeding into power lines—a deadly hazard for utility workers.
Pro Tip: A transfer switch should always be installed by a licensed electrician.
Store Fuel Properly
If you’re using a gasoline or diesel generator, store fuel in approved containers, away from living areas. Keep it in a well-ventilated shed or garage, and never store fuel inside your home.
Add a fuel stabilizer if you don’t expect to use the generator for several weeks to prevent buildup and clogs.
Generator Safety During a Power Outage
Never Run a Generator Indoors
Carbon monoxide is odorless and deadly. Running a generator inside a garage, basement, or any enclosed area, even with windows open, is dangerous.
Always run your generator outside, at least 20 feet away from doors, windows, and vents. Make sure the exhaust is directed away from the home.
Use Heavy-Duty Extension Cords
Only use cords rated for outdoor use and capable of handling the wattage of the connected appliances. Damaged or underpowered cords can overheat and start fires.
Keep the Generator Dry
Water and electricity don’t mix. Place your generator on a dry, elevated surface. Consider using a weather-rated cover or canopy made specifically for generators if rain is expected.
Never touch the generator with wet hands or while standing in water.
Don’t Overload Your Generator
Each generator has a maximum power output. Plugging in too many appliances at once can trip breakers or damage equipment.
Check wattage ratings and prioritize essentials like refrigerators, sump pumps, and medical devices.
After the Outage: What to Do
Let the Generator Cool Before Refueling
Gasoline spilled on a hot engine can ignite instantly. Wait at least 15–30 minutes after shutting off the generator before refueling.
Perform Routine Maintenance
After heavy use, check oil levels, air filters, spark plugs, and fuel lines. Drain old fuel if the generator will be stored for a while.
Routine maintenance helps prevent future failures and keeps your generator safe and reliable.
Bonus Tips for Long-Term Generator Safety
- Install Carbon Monoxide Detectors: Every home with a generator should have CO alarms near sleeping areas
- Read the Manual: Each unit has unique maintenance schedules, warnings, and usage instructions
- Label Circuits: If using a transfer switch, clearly label which circuits are powered to avoid confusion during an outage
Generator Safety FAQs
1. Can you put gas in a generator while running?
No. Never add gas to a generator while it’s running. Gasoline spilled on a hot engine can ignite instantly and cause severe burns or fires.
Always turn off the generator and allow it to cool for at least 15–30 minutes before refueling. This simple step can prevent one of the most common generator accidents.
2. How long can I leave a generator on for?
It depends on the generator type and fuel capacity. Most portable generators can safely run for 8–12 hours on a full tank, while whole-house standby generators are built to operate continuously for days at a time—as long as they have fuel and are properly maintained.
To prevent overheating, give your generator short rest periods during extended outages and always check oil levels before restarting.
3. How long can a Generac 22kW generator run continuously?
A Generac 22kW generator can typically run up to 200 hours nonstop, depending on load size and fuel source. However, manufacturers recommend shutting it down every 24–48 hours for an oil and system check. Continuous operation beyond manufacturer limits can cause engine wear or overheating, so scheduled pauses are essential for longevity.
4. Can you add gas to a generator while it’s running?
No—this is one of the most dangerous mistakes homeowners can make. Refueling while the generator is on or hot can cause instant combustion. Always power off and let the unit cool completely before adding fuel.
5. How often should I check or reset my generator?
Use the generator reset button only when necessary—after overloads, tripped breakers, or minor faults. For maintenance, inspect your system after every outage and schedule professional servicing annually to ensure optimal safety and performance.
Stay Prepared with Northside Power
At Northside Power, we believe safety is just as important as reliability. Whether you’re buying your first unit or upgrading to a whole-house system, our team offers expert guidance and professional installation that puts your family’s safety first.
We’ll help you choose the right system, install it correctly, and walk you through all the generator safety tips you need to know. Our service doesn’t stop after installation—we’re here for routine maintenance, emergency repairs, and everything in between. Call (501) 315-7213 today to schedule a consultation or learn more about powering your home with confidence.
