Best Large Generator Cover: Porch Shield Waterproof Universal Generator Cover

Yes, generators can be pricey investments—a good one can easily run into the four figures! One thing you quickly learn about owning a generator is that storing it properly is important, so it is ready for that next emergency. A good generator cover should be part of your storage routine. Generators are basically engines . . . and dust, dirt and debris can cause damage. For the best small generator cover, we recommend Porch Shield’s Waterproof Universal Generator Cover. Here’s why:

What We Liked

• Sturdy, 600D polyester fabric.

• Elastic hem cord secures this cover to the generator.

• Water resistant laminated undercoating.

• 3 sizes available. The one recommended in this article is for generators sized 32″ x 24″ x 24″—that’s bigger than the cover below, which we discuss for smaller generators.

• Sealed seams.

• Velcro closure on one end.

What Needs Work

• UV light (from sunlight) can cause fading and cracking after time.

• Not the best choice for windy areas. If you store your generator outside and live in a windy area, this may not be the best choice. We see reports online that some folks had issues with high wind and this cover.

Best Small Generator Cover: Buffalo Tools GENCOVER-L Generator Cover Waterproof

For larger generators, we like this model from GENCOVER. It fits generators up to 28.75 x 18.5 x 24 inches. These generators are the smaller capacity models typically up to 7,000 watts. 

Here’s more:

What We Liked


• Waterproof.

• Heavyweight 600D polyester fabric.

• Elastic drawstring.

What Needs Work

• Only one color—so you must like tan!

• Can fade over time.

Best Budget-Friendly Cover: Himal Weather/UV Resistant Generator Cover

Yes, there are good generator covers that are also easy on the wallet. After looking at several options suggested by our readers who live in hurricane country, we pick Himal’s cover as the best budget-friendly.

What We Liked

• Easy to install.

• 600D polyester fabric with PVC coating.

• 3 sizes available. This model is for generators 32″ x 24″ x 24.”

• Velcro closure plus elastic cord hem.

• Weather resistant.

• Affordable.

What Needs Work

• Not as waterproof as other choices. Yes, this cover claims to be water resistant—but we see a few reports online that indicate it leaked in heavy rain.

Best For Champion Generators: Champion Weather Resistant Storage Cover for 4800-11,500 Watt Portable Generators

Champion is an excellent generator brand that we’ve recommended in our other articles. If you have a Champion generator and want a cover designed to fit it like a glove, we’d recommend the company’s own covers. And surprisingly, they are competitively priced. Here’s more:

What We Liked

• Easy to use.

• Excellent fit.

• Elastic base to keep it place.

• Covers the generator but leaves the wheels exposed—that enables you to move the generator around while covered.

• Affordable.

What Needs Work

• Not designed for other generator brands. So the fit will be hit or miss if you try this on a non-Champion generator.

• Long-term durability could be better. We see a few reports that it cracked or fell apart after long-term use.

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