Protect your portable power source from the elements with our comprehensive guide to the Best Generator Covers, ensuring your equipment is ready when you need it most.
A reliable generator is essential for emergency power and off-grid adventures, but it’s only as good as the protection it receives. Whether you own a standby or portable unit, a high-quality generator cover is a critical investment that shields against rain, snow, dust, and UV damage. The ideal cover goes beyond simple storage protection; some advanced models even allow you to run the generator safely during severe wet weather, a feature known as a “generator running cover” or “tent.” By choosing a cover made from durable, heavy-gauge material like 600D or 900D Oxford fabric, you ensure maximum longevity and performance of your power equipment. This guide dives into the top covers on the market, reviewing their construction, weather resistance, and ease of use to help you make the best choice for your generator’s specific needs.
When assessing a cover, look for key features such as secure windproof systems (like buckles and drawstrings), adequate venting to prevent moisture build-up, and an easy-access panel for refueling and controls. The material’s water resistance level, often listed as waterproof or water-resistant, is also critical. A cover that is truly waterproof and UV-resistant will maintain its integrity and color for years. Furthermore, we’ve included a mix of covers designed for storage and those designed for running the generator, covering every possible need. Now, let’s explore our detailed reviews of the Best Generator Covers to find the perfect shield for your power source.
Top 5 Best Generator Covers
10 Best Generator Covers Review
1. Porch Shield Waterproof Universal Generator Cover
The Porch Shield Universal Generator Cover is designed for heavy-duty, long-term storage protection. Crafted from 600D polyester fabric with a water-resistant laminated undercoating, it offers robust defense against all elements, including sun, rain, snow, wind, and dust. This cover is compatible with a wide range of generators from 3000W up to 15000W, making it a versatile option for various models. It’s an ideal choice for users who store their generator outdoors or in a garage and need reliable, tear-resistant waterproofing.
A key performance feature is the use of high-level double stitching and taped seams, which significantly enhances its tear resistance and waterproof capability compared to single-stitched models. For wind protection, it features an elastic hem cord and a bottom strap, ensuring a custom, secure fit that stays in place during severe weather. While it excels at storage protection, the design is not intended for running the generator. The velcro-fastened side panel allows for easy installation and removal, contributing to its overall user convenience.
The Porch Shield is a fantastic option for anyone needing a durable, waterproof storage solution. It’s best suited for those who prioritize long-term protection from all elements and a secure fit. Its heavy-duty construction and high compatibility solidify its spot among the Best Generator Covers for simple storage needs.
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2. IGAN Generator Covers While Running
The IGAN Generator Cover is a premium, patented design specifically engineered to allow users to safely run their generators in severe wet weather—including rain and snow. This cover functions as a complete generator enclosure, providing reliable, year-round protection for portable generators from 3500W up to 12000W. It’s a heavy-duty solution for those who rely on their generator for emergency power and cannot afford downtime due to weather. The ultra-heavy tarp material and robust stainless steel frame set it apart from simpler covers.
The performance is rooted in its patented structure, which shields all sensitive electrical components and outlets 100%, shedding water away from the generator. Built from a premium, 9-pound waterproof tarp and supported by a rugged 5/8″ stainless steel frame, it boasts exceptional stability, even in high winds. The design allows for quick and easy assembly and can be used for both running and storage. Its zipper-based closure allows easy access to the fuel tank and power panel, enhancing operational convenience. The major benefit is the ability to run your generator during wet conditions safely, which is not possible with traditional storage covers.
The IGAN Generator Cover is the best choice for users who need to operate their generator immediately during bad weather. While it is a larger, more involved setup than a slip-over cover, its unmatched weather protection and structural stability justify the investment. This is clearly one of the Best Generator Covers for running your unit outdoors.
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3. Westinghouse Outdoor Power Equipment WGen Generator Cover
The Westinghouse WGen Generator Cover is a universal-fit cover designed by a leading brand in power equipment, specifically for long-term storage of open-frame generators up to 9500 rated watts. Its primary purpose is to protect the generator from dust, dirt, moisture, and UV damage when the unit is not in use. This cover is an economical and simple solution for Westinghouse owners and those with similarly sized open-frame generators looking for basic, reliable protection during storage.
Constructed with highly durable synthetic polyester fiber and quality high-density stitching, the cover is rated as water-resistant, providing adequate protection for indoor storage or under a sheltered area outdoors. The key feature for securing the cover is the integrated drawstring, which allows the user to cinch the cover tightly around the bottom of the generator frame for a snug and secure fit, helping to keep out dust and dirt. It is lightweight, making it easy to put on and take off. Since this is a storage cover, it must be removed completely before operating the generator to prevent overheating and fire hazards.
This Westinghouse cover is an excellent, no-frills storage solution. It’s best for generator owners who store their unit under cover (like in a garage or shed) and want the brand assurance of Westinghouse. Its simplicity, lightweight design, and effective drawstring make it one of the Best Generator Covers for basic, budget-friendly protection.
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4. GenTent Generator Running Cover – Universal Kit (Standard, Grey)
The GenTent Generator Running Cover is a highly regarded, patented solution for operating open-frame portable generators in all wet weather conditions—including heavy rain, snow, ice, and sleet. Unlike a full enclosure, the GenTent acts as a canopy, protecting the electrical outlets and controls while maintaining the generator’s natural cooling airflow and not impeding operation. This is a vital piece of equipment for maximizing your generator’s utility during an emergency or power outage when the weather is at its worst.
Its performance is based on a simple but effective design that uses universal adapters and clamps to attach securely to the generator frame, fitting open-frame generators with perimeters ranging from 76″ to 104″. The canopy material is waterproof and is designed to shed water away from the generator’s sensitive components. A large access door is included for easy refueling, and the design is engineered to avoid exhaust outlets. The ability to safely run your generator in the rain is its single biggest advantage, eliminating the need for a bulky, permanent structure or risking the equipment. Installation is straightforward and doesn’t require complex tools.
The GenTent is an excellent investment for those who must run their generator outdoors in any weather. It’s best suited for emergency preparedness where ease of use and safe, reliable operation during a storm are non-negotiable. Its patented design, ease of refueling, and universal fit make it one of the Best Generator Covers for wet-weather running.
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5. Westinghouse WGenTent Generator Running Cover for Open Frame Generators
The Westinghouse WGenTent is the brand’s version of a running cover, designed to allow open-frame portable generators to operate safely in severe weather conditions. It is engineered to withstand up to 12 inches of rain and 18 inches of snow per day, with winds up to 70 mph, making it a rugged solution for the most extreme situations. The WGenTent offers the reliability of a major brand while providing the crucial function of a generator tent for emergency use.
This cover is built with vinyl fabric and features a vented top to ensure sufficient cooling airflow, which is vital for safe operation. A secure refueling door is strategically placed for quick access to the gas tank, even in harsh weather. The design also allows for easy repositioning or movement of the generator while the cover remains attached. Assembly is simple and requires no tools, which is a significant advantage during an unexpected weather event. It’s marketed as a universal fit for open-frame generators with a perimeter from 80″ to 107″, covering a vast range of models, including most of the Westinghouse WGen line.
The Westinghouse WGenTent is a highly dependable option for severe weather running. It’s best for generator owners who require a robust, easy-to-assemble running cover backed by a reputable brand. Its impressive weather ratings and ease of access solidify its position as one of the Best Generator Covers for true emergency preparedness.
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6. GenArmor Generator Covers While Running, 100% Waterproof Heavy Duty Tarps Generator Tent
The GenArmor Generator Cover is a robust generator tent designed for 100% waterproof protection while the generator is running. Weighing in at a substantial 14 pounds, this is one of the heaviest-duty covers on the market, built to withstand long periods of adverse weather. It is suitable for a large range of generators from 4000W to 13000W, targeting users with high-output units that are crucial for backup power.
The performance of the GenArmor is highlighted by its robust integrated design, where the sturdy metal frame and heavy-duty tarpaulin fabric are secured with bolts to form a single, stable unit. This feature provides superior stability and resistance to strong winds, preventing the cover from collapsing. It offers quick access for refueling and to the power panel, maximizing convenience during operation. Furthermore, the company offers a 5-year warranty, demonstrating high confidence in the product’s long-lasting durability and construction quality. The main trade-off is the extra weight and initial setup, but the peace of mind offered by its structural integrity is a significant benefit.
This GenArmor tent is an outstanding choice for users seeking maximum structural integrity and all-weather operational capability. It’s best for high-wattage generator owners who experience severe weather and need the utmost confidence that their cover will remain stable. The robust build and 5-year warranty make it one of the most durable Best Generator Covers available.
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7. Outdoor Generator Covers Waterproof Heavy Duty 600D Oxford Portable Generator Cover
The Femuar Outdoor Generator Cover is a heavy-duty storage solution crafted from 600D Oxford fabric with a PVC coating, providing excellent protection against rain, snow, dust, wind, and UV rays. Designed for a wide compatibility range of 5500W-15000W generators, this cover is focused on delivering all-weather, long-term storage defense. It’s an essential accessory for ensuring your generator remains clean and ready for immediate use.
A stand-out feature is the inclusion of a large capacity tool bag (storage pocket) on the cover, which is perfect for keeping small, essential accessories like power cords, oil funnels, and dipsticks organized and handy. The cover secures itself against the wind with both buckle straps and a drawstring at the bottom, offering a dual-layer windproof system. The velcro on the front allows for easy installation and removal, a convenient design touch that many users appreciate. While the 600D fabric is durable and waterproof, it is a dedicated storage cover and must be removed before running the generator.
This Femuar cover is an excellent all-around storage cover that balances durability with a practical design. It’s best for generator owners who value the convenience of an integrated storage pocket and a dual-strap windproof system. Its combination of waterproof material and practical features makes it one of the most functional and Best Generator Covers for simple storage.
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8. Zettum Generator Cover 32 Inch – 600D Outdoor Generator Covers Heavy Duty Waterproof
The Zettum Generator Cover provides heavy-duty, waterproof storage protection, designed to fit most popular generator brands in the 5000W-10000W range. It distinguishes itself by using 600D Oxford cloth with a PU coating rather than the typical PVC, making it more breathable and environmentally friendly. This cover is an excellent option for long-term outdoor storage, protecting against sunlight, rain, snow, wind, and debris.
A major performance highlight is its fading-resistant fabric, which is tested to withstand at least 3 years of UV aging, ensuring the cover maintains its appearance and protective properties over time. It boasts a super waterproof rating and is designed to be softer and less prone to tearing than PVC covers. The Windproof Smart Buckles Design combines a quick-release buckle and velcro, allowing for a tight, secure fit that prevents the cover from blowing away in high winds. The design is simple for easy on/off installation, making regular application hassle-free. Note, this is explicitly a storage cover and should not be used while the generator is running.
The Zettum 32-inch cover is a top-tier choice for storage-only use. It’s best for users who prioritize a premium, fading-resistant material and a secure, windproof fit for long-term outdoor placement. Its superior material choice and UV protection make it one of the most durable and Best Generator Covers for outdoor storage.
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9. WLEAFJ Generator Cover Heavy Duty Waterproof, Universal Portable Generator Cover
The WLEAFJ Generator Cover is another heavy-duty, waterproof storage cover offering a universal fit for generators in the 5000W-10000W range. It features heavy-duty Oxford fabric with a UV-stabilized and waterproof coating, including a waterproof laminated backing that has passed third-party testing to ensure it does not leak. This cover provides a secure and reliable means of protecting your portable generator from the worst weather.
Like the Femuar cover, the WLEAFJ includes a large capacity tool bag (pocket) for storing essential accessories like cords and tools, greatly enhancing convenience. The windproof system is robust, featuring a combination of a Button Buckle Strap and a drawstring with an adjustable toggle to ensure an exceptionally secure fit in windy conditions. The inclusion of Velcro on the side makes the process of opening, closing, and ultimately removing the cover simple and quick. The brand emphasizes their commitment to quality with a great service policy, including replacement or refund if the user is unsatisfied.
The WLEAFJ cover is a reliable, high-utility choice for standard generator storage. It’s best for users who need a guaranteed waterproof layer and appreciate the organizational benefit of the large accessory pocket. Its strong windproof features and ease of use make it a powerful contender among the Best Generator Covers for simple storage.
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10. QH.HOME Waterproof Generator Cover 32x24x24 inch, 900D Heavy Duty Oxford with Secure Windproof Buckle
The QH.HOME Generator Cover is a premium storage cover that prioritizes extreme durability above all else. It is constructed from a 900D super-dense thickened Oxford fabric, giving it an overall tear strength up to 1,000N—reportedly 5 times more durable than standard 600D fabric. This makes it an ideal solution for areas that experience harsh, sustained environmental conditions or low temperatures (down to -22°F).
The performance benefits from its upgraded materials, which include a waterproof coating to 100% prevent rainwater penetration. The fabric is woven from original color yarns with a UPF50+ UV resistant rating, ensuring the color remains vibrant and fade-resistant for at least three years. For security, it features a superior windproof locking system consisting of a central buckle, an adjustable bottom drawcord, and Velcro. This triple-lock system guarantees a tight and secure fit even during strong winds. The focus on long-term tear resistance and fade resistance makes this a highly appealing cover for discerning buyers.
The QH.HOME cover is the ultimate storage cover in terms of material strength. It’s best for users who need extreme durability and fade resistance for their outdoor-stored generator. The 900D fabric and enhanced windproof system make it one of the most robust and Best Generator Covers for peace of mind in challenging climates.
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How to Choose Best Generator Covers
Choosing the Best Generator Covers depends on your generator type, storage location, and how you intend to use it. The right cover ensures your equipment remains functional and safe from degradation. A well-chosen cover can significantly extend the lifespan of your generator by preventing rust, fouling of electrical components, and sun damage.
Storage vs. Running Cover
The primary decision is whether you need a storage cover or a running cover (generator tent). A storage cover is a simple slip-over design made to protect a stationary, non-running generator from the elements. A running cover features a frame or canopy design that protects the electrical panel and engine, allowing the generator to operate safely outdoors in wet weather while preventing dangerous overheating. Always choose a cover that explicitly states it is safe for running if you need emergency operational capability.
Material Density (D-Rating) and Waterproofing
Look at the D-rating (denier) of the material, typically 600D or 900D Oxford fabric. A higher D-rating indicates a denser, thicker, and more tear-resistant fabric (e.g., 900D is more durable than 600D). Ensure the material is truly waterproof (often achieved with a laminated backing or PU/PVC coating) rather than just water-resistant, especially for outdoor storage.
Security and Wind Resistance
A quality cover must stay put. Look for a robust windproof system, ideally a combination of buckle straps that connect under the generator frame and a cinchable drawstring or elastic hem to secure the bottom. This dual-locking mechanism is crucial for preventing the cover from blowing away during high winds or severe storms.
Size and Universal Fit
Measure your generator (Length x Width x Height) carefully before purchasing. While many covers are described as a “universal fit,” they are often matched to a wattage range (e.g., 5000W-10000W). Ensure your generator’s dimensions fall within the cover’s stated limits to achieve a snug and secure fit, which maximizes its effectiveness.
Ease of Access and Maintenance Features
Look for features that simplify your life, such as Velcro or zipper side openings for easy on/off installation. For running covers, ensure there are easy refueling doors. For storage covers, consider those with integrated storage pockets for keeping essential accessories like oil funnels or power cords handy.
The Best Generator Covers and RV Power Solutions
The need for the Best Generator Covers often overlaps with the power requirements of RV and off-grid enthusiasts. A portable generator serves as the primary backup power source for RVs, running high-draw appliances like air conditioners and microwaves. Protecting this vital equipment is essential for any long-term boondocking or emergency preparedness plan. Since many generator covers are designed for outdoor use, they integrate seamlessly into an RV setup. For instance, a running cover like the GenTent allows you to keep your generator outside your RV, running safely in the rain, while you link the power through specialized accessories.
To create a complete, self-sufficient power system, many RVers pair their generator with solar technology. You can ensure your generator is protected by the cover while your solar components are optimizing power capture. You can find essential gear for these setups, such as the best rv generator adapters and best solar panel extension cables. Always remember to maintain a safe distance between the generator and your RV and follow all manufacturer guidelines, even when using a running cover, to prevent CO poisoning.
How to Use Best Generator Covers
Using the Best Generator Covers correctly is vital for maintaining the condition and safety of your equipment. Here are the key steps for both storage and running covers:
- Step 1: Setup/prep (Storage) Ensure the generator is completely cool and turned off before applying any storage cover. Visually inspect the cover for tears or excessive wear before use to guarantee full waterproofing.
- Step 2: Core usage & best practices (Storage) Simply slip the cover over the generator. Cinch the bottom drawstring or fasten the quick-release buckles/straps securely around the base frame to create a tight, windproof fit that keeps out dust and debris.
- Step 3: Setup/prep (Running Covers/Tents) If using a generator running cover (tent), follow the manufacturer’s instructions carefully for attaching the frame or canopy to the generator. Ensure all clamps are tight and the cover is fully secured before starting.
- Step 4: Optimization/safety/maintenance (Running Covers/Tents) Ensure the exhaust outlet and all necessary air vents (on both the generator and the cover) are completely unobstructed. Only run the generator with the cover in the designated operational configuration, and always maintain safe distances from living areas to prevent CO buildup.
Frequently Asked Questions
Can I leave my generator outside all year with a cover on it?
Yes, if you use one of the Best Generator Covers made from heavy-duty, UV-stabilized, and waterproof material (like 600D or 900D Oxford cloth). These materials are designed to withstand sun, rain, and snow over the long term. However, it’s always ideal to store your generator in a sheltered location if possible, as continuous outdoor exposure can shorten the lifespan of any equipment.
How do I know if a generator cover is safe to use while the generator is running?
Only covers that explicitly state they are “running covers,” “generator tents,” or “while running” covers are safe to use when the generator is operating. These designs use frames or canopies to protect the electrical panel while allowing the engine and muffler to remain uncovered or adequately ventilated to prevent dangerous overheating and carbon monoxide buildup.
What is the difference between 600D and 900D generator cover fabric?
The D stands for denier, which is a unit of linear mass density of the fiber. 900D fabric is significantly denser, thicker, and generally more resistant to tears and abrasion than 600D fabric. While 600D offers reliable protection, 900D provides a superior level of heavy-duty durability, especially for prolonged exposure to harsh weather.
Why is a windproof system important on a generator cover?
A generator cover that is not secured properly can be blown off by high winds, leaving your equipment exposed to rain and debris. The Best Generator Covers feature a secure windproof system (like buckles, straps, and drawcords) to ensure the cover remains tightly attached to the generator frame, providing continuous, reliable protection.
Final Thoughts
Protecting your generator with one of the Best Generator Covers is a non-negotiable step for long-term reliability and safety. Whether you choose a simple storage cover or a robust running tent, the right material, security features, and proper usage will ensure your power source is ready for any outage or outdoor adventure.
For users who need a storage-only cover with maximum long-term durability and resistance to harsh weather, the QH.HOME Waterproof Generator Cover stands out due to its superior 900D fabric and triple-lock windproof system.
For those who need to safely run their generator in the rain and snow, the IGAN Generator Covers While Running offers the most comprehensive, structurally sound solution, utilizing a heavy-duty frame and patented design for 100% operational safety.
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