Running a generator in the rain or snow without the right protection can be risky. Overheating can shorten engine life. Moisture exposure can cause short circuit. Wind can cause a poorly engineered cover to blow away. Since the very first prototype, GenTent continues to invest in ongoing, multi-year certification and independently conducted testing because generator safety is not something you prove once, then ignore. Generator designs change, materials improve, and homeowners, contractors, and generator owners expect reliable protection they can trust.
The results of our ongoing innovation, testing, and validation confirm the safety, durability, and real-world performance of GenTent generator running covers:
OUTLET MOISTURE PROTECTION TESTING
Question:
Does GenTent keep generator electrical panels dry?
Result:
Independent rain protection testing confirmed that after 10+ minutes of simulated rain from variable directions, the equivalent of 18 inches per hour, all 110v and 220v outlets, and panel controls remained dry.
SNOW LOAD DURABILITY TESTING
Question:
How much snow can GenTent handle?
Result:
Independent load testing confirmed that GenTent supported ~60 lbs of weight with no damage to clamps or fiberglass support rods, equivalent to 20” of snow.
WIND SURVIVABILITY TESTING
Question:
Will GenTent stay attached in high wind?
Result:
Independent wind testing confirmed that when subjected to sustained forecast winds of 110 mph, the equivalent of Category 2 hurricane force wind, the GenTent stayed firmly attached in all instances.
MATERIALS AUTO-IGNITION RESISTANCE TESTING
Question:
Is GenTent flammible?
Result:
Independent flammability testing confirmed GenTent materials are flame retardant, with canopy material found to be compliant with NFPA 701 FR rating, and hardware compliant with UL 94 V-0 rating. The aluminum and steel components of GenTent's universal clamps are nonflammible.
GENERATOR COOLING INTERFERENCE TESTING
Question:
Does GenTent cause generator overheating?
Result:
Independent cooling interference testing confirmed no measurable change in operating temperature under full load.
GENERATOR AIR INTAKE IMPEDANCE TESTING
Question:
Does GenTent block generator ventilation?
Result:
Independent generator airflow testing confirmed GenTent was found to have no appreciable effect on air intake or ventilation of the generator.
Every GenTent canopy, components and generator accessories are put through extensive third-party testing by accredited laboratories. Vartest Laboratories, an ISO/IEC 17025 accredited testing facility, conducted NFPA 701 flame resistance testing and UL 94 material testing on GenTent canopies and hardware in 2019, 2020, 2024, and 2025. These tests help ensure GenTent materials meet recognized safety standards for generator operation.
GenTent generator tents have also been evaluated by independent testing organizations. 360 Product Testing, a firm specializing in product claims validation, assessed fully assembled GenTent generator covers to verify performance as advertised. Novatio Engineering Solutions performed additional testing in Department of Defense laboratories and alongside emergency management agencies and utility partners. As these agencies often respond to power grid failures in challenging conditions like hurricanes, wildfires and winter storms, these evaluations focused on how GenTent performs in extreme and remote weather conditions, including high wind, heavy rain, and snow.
GenTent has presented to the Consumer Products Safety Commission (CPSC) and the Portable Generator Manufacturers’ Association to further the conversation of generator safety. With the adoption of the ANSI/PGMA G300 requirement that portable generators include automatic carbon monoxide (CO) shut-off, GenTent submitted product to multiple members of the PGMA. GenTent has been tested by trusted generator brands, including:
Briggs & Stratton, CAT, Champion, Cummins, DuroMax, Firman, Generac, Westinghouse, and Yamaha.
This testing demonstrates GenTent is proven to work with generators equipped with G300 or UL2201 carbon monoxide sensors. GenTent provides proper airflow, which ensures your generator won’t shut down unexpectedly due to heat or trapped fumes while allowing your built-in safety sensors to detect CO accurately.
By combining certified laboratory testing, real-world field testing, and full system performance evaluations, GenTent offers one of the most thoroughly tested generator running covers available today. This level of validation helps ensure your generator stays protected and operationally safe when you need power the most, no matter the weather.
Certified. Tested. Rated. Not Just Marketed.
Unclear Marketing Claims can be used by anyone, and confuse users.
On their own, Marketing claims do not prove safe operation. Certified ratings are backed by independently conducted and repeatable testing, clear limits, and published results that allow you to compare products fairly.
GenTent focuses on certified performance and transparent data-based testing instead of vague claims that sound impressive but are not tied to any verified standard. Each rating is tied to a specific test, a recognized standard, and real-world operating conditions, so you can know exactly what GenTent is designed to handle.
Many generator covers use marketing terms like “Dustproof,” “Windproof,” and “Waterproof,” which are not regulated product ratings. Manufacturers can use them without proving performance through independent testing. These terms describe intent, not measured results, and they do not tell you how a product will actually perform in severe weather or during extended generator operation.
Common Generator Cover Marketing Terms:
Dustproof, Windproof, Waterproof, Snow-Ready, Heavy-Duty, Weatherproof, 4-Season Durability, Built for Extreme Conditions, Waterproof Sealed Seams, Storm-Ready Protection, Rustproof, Fireproof
If a cover makes these claims, look for independently certified test results from accredited (CPSC, A2LA, UL Solutions) product testing laboratories. Measureable weather claims like wind performance, rain performance, snow performance or flame retardant material claims should be backed up with code compliance (NFPA, UL, ASTM, ISO, etc.), or by measurable thresholds (sustained or forecast wind in MPH, rainfall in inches per hour, snow load in pounds or inches)
When you Weatherproof your Power with GenTent, you can be confident you're doing so with thousands of hours of testing, hard data, and proof points on your side.
Get an in-depth analysis of all test procedures and results, and see the data behind the safety: