When bad weather hits during a power outage, many homeowners look for ways to protect their generator from rain or snow. Covers and tents are often marketed as simple solutions—but using the wrong type of cover can turn a safety precaution into a serious hazard.
Why Generator Covers Are Risky During Operation
Portable generators produce heat, exhaust gases, and vibration while running. Any cover placed over a generator during operation must allow unrestricted airflow. Covers that trap heat or block exhaust increase the risk of overheating and carbon monoxide buildup.
Carbon monoxide is colorless and odorless. Even short-term exposure can be deadly. That’s why generator placement and ventilation are just as important as weather protection.
Safe Generator Covers vs. Dangerous Improvised Solutions
Not all generator covers are equal. Purpose-built generator tents are designed with open sides and elevated canopies that shield falling rain while allowing heat and exhaust to escape. These products are specifically rated for use while the generator is running.
Improvised solutions—such as tarps, plastic sheeting, garbage bags, or homemade enclosures—are extremely dangerous. These materials can collapse, melt, or block airflow, creating fire and carbon monoxide risks.
Why Enclosed Structures Are Never Safe
Running a generator inside a garage, shed, porch, or enclosed tent is never safe—even if doors or windows are open. Exhaust gases can accumulate quickly and seep into living spaces.
For safe placement guidelines, review how far a generator should be from the house and ensure the exhaust faces away from structures.
Weather Protection Without Trapping Exhaust
The safest way to protect a generator from weather is proper placement. Choose an outdoor location with open airflow on all sides, elevated above ground moisture, and positioned away from windows and doors.
Extension cords should also be rated for outdoor use and kept off wet ground. See generator extension cord safety for guidance on cord placement and protection.
Rain, Snow, and Ongoing Weather Safety
Weather-related generator risks go beyond covers alone. Rain, snow, and ice each create unique hazards that affect ventilation and electrical safety.
For broader guidance, review running a generator in the rain and generator carbon monoxide safety to understand how weather conditions change safe operating practices.
Conclusion
Generator covers can be helpful—but only when they’re designed for safe operation. Avoid improvised solutions, prioritize ventilation, and never enclose a running generator. Weather protection should reduce risk, not introduce new dangers.
