XL Generator Covers for Open Frame and Inverter Models
Whether you're powering a job site, home during an extended outage, or high-demand equipment, larger generators need to run reliably in all weather. GenTent® offers the most trusted weatherproof generator covers for open frame and fully encased XL models—supporting up to 28,000 watts.
The GenTent XL Universal Kit fits large open frame generators with perimeters from 105″–128″ using our Self Attaching Clamps. The XL Inverter Kit supports fully encased generators without posts, ranging from 104″–140″, including brands like Generac, DuroMax, Champion, Firman, and Westinghouse.
Extreme Weather Protection for High Output Generators
Installation is fast and field-tested. Just Clamp it or Strap it, Frame it, Cover it™. Both XL kits include a reinforced fiberglass frame, flame-retardant canopy, and mounting system customized to your generator style:
- Withstands 70+ mph winds
- Supports 18 inches of snow (55 lbs)
- Resists 12 inches of rain per hour
- NFPA 701 and UL94 certified flame resistance
GenTent covers maintain airflow and exhaust clearance, eliminating the risk of carbon monoxide buildup, nuisance shutoffs, and generator overheating while preserving portability. Watch our installation videos to learn more.
Why Choose a GenTent Inverter Generator Cover?
- Engineered fit: Protects larger generators with perimeters from 104 to 140 inches
- Proven performance: Lab-tested to withstand extreme weather and high-output use
- Customizable canopy: Available in Standard (1-year), Plus (2-year UV), and Extreme (3-year UV and cold-rated) editions
- Made in the USA: Proudly manufactured and assembled in Brentwood, New Hampshire
Protect Your Power
All GenTent systems are lab-tested for weather, flame, and heat safety. With over a decade of proven performance, GenTent is the only brand trusted by OEMs and first responders.
Find the Right Fit
Use our Advanced Fit Finder to match the correct XL kit to your generator. Whether you need clamping or strap-based mounting, GenTent delivers safe, portable power; rain or shine.
Choose the Right GenTent XL Kit
XL Universal Kit
For Larger Open Frame Portable Generators
Typically over 100" perimeter with vertical posts
- Fits perimeters between 105″–128″
- Accommodates round or square vertical frame posts
- Includes adapters for blocked posts (muffler shield, panels, etc.)
- Attaches via GenTent Self Attaching Clamps
XL Inverter Kit
For Larger Fully Encased Generators
Typically inverter generators with no posts
- Fits perimeters from 104″–140″
- For large fully encased inverter generators
- Supports up to ~17,500 W running wattage
- Attaches using GenTent Strap Mounting System
Compare XL Universal vs. XL Inverter Kits
| Feature | XL Universal Kit | XL Inverter Kit |
|---|---|---|
| Fits Generator Type | Open frame generators with frame posts | Fully encased inverter generators |
| Perimeter Range | 105″–128″ | 104″–140″ |
| Max Wattage | Up to ~28,000 W | Up to ~17,500 W |
| Mounting System | Self Attaching Clamps | Strap Mounting System |
| Starting Price | $184.99 | $189.99 |
| Product Link | Shop XL Universal Kit | Shop XL Inverter Kit |
| Installation Method | Clamp It, Frame it and Cover it in three easy steps to WeatherProof your Power™! | Strap It, Frame it and Cover it in three easy steps to WeatherProof your Power™! |
XL Kit Frequently Asked Questions
The XL Universal Kit is designed for open frame generators with external posts, while the XL Inverter Kit fits fully encased generators without posts. Both support large models but use different mounting systems.
Measure the outer perimeter of your generator and check for vertical frame posts. If it has posts and is between 105"–128", choose the XL Universal Kit. If it’s fully encased without posts and measures 104"–140", choose the XL Inverter Kit. Use our Advanced Fit Finder to confirm.
Yes. Both GenTent XL kits are lab-tested for extreme wind, snow, rain, and heat. They meet flame resistance standards and are trusted by first responders and OEMs.
The XL Universal Kit uses GenTent Self Attaching Clamps for vertical frame posts. The XL Inverter Kit uses our Strap Mounting System for fully encased generators without posts.
Yes. All GenTent kits are proudly manufactured and assembled in Brentwood, New Hampshire.
Looking for more detailed installation guides, compatibility tips, or safety articles?
Visit our full GenTent Knowledge Base →