DIY Generator Running Covers — and Why It's Better to Go With a Pre-Built Solution

Sep 27th 2024

When it comes to protecting your portable generator while it's running outside, you might consider making your own cover or buying a pre-built one. You want to ensure your generator is in good condition when you use need it, especially during power outages or outdoor events. While do-it-yourself (DIY) covers may seem like a cost-effective and even fun project, pre-built covers are often a better solution.

Before you acquire materials to cover your generator, weigh the advantages and disadvantages of the two options. Investing in a more reliable option will save you time and effort while keeping your generator safe and functional for years to come.

Is a Generator Cover Necessary?

A generator cover is generally considered necessary. Considering portable generators and their uses, running them inside a building or near a door, window or air intake vent due to bad weather increases your exposure to carbon monoxide. However, using a generator in the rain or snow can result in electrical shorts or failures. Additionally, exposure to inclement weather can cause metal components to rust, leading to deterioration and potentially costly repairs.

Other weather considerations for generators include UV damage and debris. Prolonged exposure to sunlight can degrade plastic and rubber parts, such as fuel lines and gaskets, which may crack and fail over time. Wind can blow dust, dirt, leaves, and other debris over an unprotected generator, which may clog air filters and cooling vents.

Additionally, without a running cover, there's a risk of accidental contact with moving parts or hot surfaces, and accumulated debris or flammable materials near an uncovered generator could pose a fire hazard.

When covering a generator, people usually choose one of the following generator housing models and covers:

  • Weather-resistant tarps: Typically made from heavy-duty polyethylene or vinyl, tarps provide temporary protection against rain, snow, and sunlight.
  • Portable generator covers: These lightweight storage covers fit over portable generators for a snug fit.
  • Generator boxes: Designed for a snug fit around a generator, generator boxes are a robust but portable housing solution.
  • Modified plastic storage sheds: Lightweight and resistant to rust and rot, these smaller sheds are adapted for storing generators.
  • Pop-up canopies: These lightweight frames with fabric tops provide a temporary shelter from sun and rain.
  • Dog house structures: Typically constructed from wood or composite materials, these structures are sturdy but not portable, and can be flammable.
  • Generator running tents: These tent-like structures are made from durable, sometimes non-flammable, material and are meant to protect the generator while it's running.

Advantages of Pre-Built Generator Running Covers

Pre-built running covers provide several advantages that enhance the protection and longevity of your portable generator. Here are some key benefits:

  • Rain and snow resistance: Pre-built covers are designed to withstand various weather conditions, including rain, snow, and ice that can cause rust and corrosion.
  • UV protection: Many covers are made with UV-resistant materials that prevent sun damage and help maintain the integrity of plastic and rubber components.
  • Durable material: Pre-built running covers are constructed from durable fabrics, such as marine-grade vinyl, designed for long-term use. They are often made to withstand a running generator's exhaust heat, which can go up to 1300°F.
  • Tailored design: Many pre-built covers are designed for a wide range of generator models to ensure a snug fit that provides optimal protection against the elements. A well-fitting cover is easier to put on and take off.
  • Ventilation features: Some pre-built covers include ventilation panels or breathable materials that allow for airflow. Others are designed to allow heat to escape while the generator is operating, reducing the risk of overheating or shutting down while covered.
  • Fire hazard reduction: By keeping debris away from the generator, pre-built covers can help minimize fire risks associated with accumulated flammable materials. Some running covers, like GenTent safety canopies, are rated flame retardant, which is beneficial for the material close to the exhaust pipe or muffler area.

Comparing DIY vs. Pre-Built Solutions

Here's a comparison of DIY and pre-built generator running cover approaches:

  • Time and effort: Building a generator cover can be a fun project for those who enjoy crafting. However, it requires time for planning, sourcing quality materials, and construction. Pre-built covers are ready to use right out of the box, saving you time and effort in the setup.
  • Cost: Potentially, the upfront costs may be lower for DIY setups if you already have materials on hand. You can customize the design based on your budget. However, hidden costs may arise from having to purchase extra materials, tools, and any necessary repairs down the line. Quality pre-built covers come with a clear price tag, reflecting the quality and durability of the materials used.
  • Durability: Pre-built running covers are typically made from high-quality, durable materials that are tested for longevity and weather resistance. Plus, any kits, canopies, and hardware components normally come with a warranty, a benefit that would be missing from self-constructed covers.
  • Ventilation: While you can incorporate custom ventilation features in your DIY running cover, achieving proper ventilation can be challenging without experience. Many pre-built covers include built-in ventilation systems designed to prevent overheating while keeping moisture out.

Considerations for Generator Use

When choosing a generator running cover you can use while the generator is running, consider several important factors to ensure safety, functionality, and protection:

  • Airflow design: Look for running covers with built-in ventilation panels, breathable materials, or openings or flaps that accommodate the exhaust outlet, allowing exhaust gases to escape safely.
  • Weather resistance: Choose materials that can withstand high temperatures without melting or degrading that are specifically designed for use with running generators. The material should also be waterproof and UV-resistant to protect against rain and sun damage.
  • Ease of use: Look for covers that are easy to put on and take off, especially if you plan to use the generator frequently. A lightweight cover will be easier to handle and adjust while it's securely fastened during operation.
  • Fit and size: A cover should be designed specifically for your generator model to provide better protection and ventilation. Check the dimensions to ensure a snug fit that doesn't obstruct any vents or exhaust outlets. Some covers come with adjustable straps or drawstrings to secure them tightly around the generator while still allowing ventilation.

Go With a Pre-Built Cover Solution From GenTent

Generators need covers, especially when their design doesn't offer any weather protection. While both DIY and pre-built generator covers aim to protect generators from weather-related damage, pre-built solutions provide superior protection as they're specifically designed for this purpose.

GenTent Safety Canopies provides high-quality generator cover solutions engineered with your safety in mind. With waterproof generator covers for a wide range of generators and inverters, there's an option for everyone.

Browse our inverter and portable generator cover options.