When a winter storm rolls through Western Pennsylvania and the power goes out in your neighborhood, a generator can be a lifesaver. However, that powerful tool comes with serious risks if not installed and operated correctly. For homeowners from Squirrel Hill to the South Side, understanding the principles of generator safety is not just about following rules—it’s about protecting your family and your property.
Carbon Monoxide: The Silent Threat in Your Backyard
The single most significant danger from a portable generator is carbon monoxide (CO), an invisible, odorless gas that can be fatal in minutes. Never, under any circumstances, run a generator inside your home, basement, or an attached garage—not even with the doors and windows open. The National Fire Protection Association (NFPA) and generator manufacturers have strict guidelines for placement.
To ensure proper ventilation and prevent CO buildup, you must place your generator:
- At least 20 feet away from your home's doors, windows, and vents.
- In a location where the engine exhaust cannot drift into or accumulate near any occupied space.
- On a stable, level surface where it won't be exposed to excessive moisture or flooding.
- Never in an enclosed or partially enclosed space like a shed, carport, or under a deck.
Safety Tip: Install carbon monoxide alarms on every level of your home and test them monthly. They are your only warning against this deadly gas.
Electrical Dangers: Understanding Backfeeding and Transfer Switches
Connecting a generator directly to your home's electrical panel without the proper equipment is illegal and incredibly dangerous. This practice, known as "backfeeding," sends electricity from your generator back through the utility lines. It can cause a fire in your home and, even worse, electrocute a Duquesne Light lineworker trying to restore power to your community. The only safe and legal way to connect a generator to your home's wiring is with a transfer switch.
A transfer switch is a device that isolates your home from the utility grid before it allows the generator to provide power. There are two main types:
- Manual Transfer Switch (MTS): You manually flip a switch to change your home's power source from the grid to the generator.
- Automatic Transfer Switch (ATS): This switch automatically detects a power outage, starts your standby generator, and transfers the load without any action on your part. It's the standard for whole-home standby systems.
In Pennsylvania, installing a transfer switch is required by the National Electrical Code (NEC) for any generator connected to a home's electrical system. A licensed electrician can help you choose and install the right switch for your needs.
Pittsburgh-Area Codes and Professional Installation
Installing a standby generator is not a DIY project. In Allegheny County, most generator installations require an electrical permit and a final inspection to ensure the work is done to code. This process ensures the system is safe and compliant with both local ordinances and the NEC. A qualified electrician in Pittsburgh will handle the permitting process, ensuring that everything from the wiring gauge to the placement of the unit meets these stringent safety standards.
Fuel Storage and Handling
Proper fuel handling is another key aspect of generator safety. Whether you're using gasoline or propane, storing fuel requires care.
Follow these essential fuel safety rules:
- Store gasoline only in approved, clearly labeled safety cans.
- Never store fuel inside your home; keep it in a well-ventilated shed or detached garage away from living areas and ignition sources.
- Allow the generator engine to cool completely before refueling to prevent a fire.
- If using propane, ensure tanks are stored upright, outdoors, and away from direct heat.




