10 Best Pool Solar Covers 2025 in the United States

The BigXwell Solar Pool Cover is designed to harness solar energy to heat your pool. Its 16-mil thickness and thermal bubble design are effective in trapping heat from the sun, which can warm up the pool during sunny days and maintain the temperature during cooler nights. The polyethylene material promises durability and longevity, even under harsh weather conditions, while also being lightweight and easy to install or remove.

The blue color of the cover not only looks appealing but also contributes to UV protection, which is crucial for minimizing water evaporation – claimed to be reduced by up to 95%, helping conserve water significantly. Additionally, the cover can be trimmed to fit pools of various shapes, making it versatile for both in-ground and above-ground pools.

However, at 50.9 pounds, it might be a bit heavy for some users to handle. Given its size of 16 x 32 feet, it is suitable for larger pools. This cover is a robust option for those looking to efficiently heat their pool and reduce water evaporation, with the flexibility of fitting different pool shapes and sizes.

The Sun2Solar Blue 20 ft x 40 ft Rectangle Solar Cover is designed for rectangular inground and above-ground pools, offering effective solar heating and protection. Made from durable resin material, this cover features a bubble design that traps heat efficiently, helping raise the pool temperature by up to 15 degrees and retaining warmth overnight. Its blue color is common for solar covers and helps with sunlight absorption. Sized to fit a 20 by 40-foot pool, it provides good coverage and includes extra overlap to fit around any pool protrusions.

The cover also significantly reduces water evaporation—up to 95%—which helps save water and lowers chemical use. It prevents leaves and debris from entering the pool, reducing cleaning efforts. While the cover is lightweight enough for easy installation and removal, it weighs about 40 pounds, which might require some care during handling. The material requires hand washing, so it needs gentle maintenance compared to more durable pool covers.

This product represents a solid choice for pool owners looking for an affordable way to keep water warm using free solar energy, especially if the pool size matches the cover dimensions. For those with non-rectangular pool shapes or who need a cover with enhanced durability or automatic features, it may be beneficial to consider other options.

The VINGLI 12Mil Solar Pool Heater is a heavy-duty pool cover designed to extend swimming time by warming pool water using solar energy. Made from durable polyethylene with a 12-mil thickness, it balances strength and flexibility, which helps it last longer against wear and tear. The bubble design on the underside efficiently absorbs heat and traps it in the pool, while also reducing water evaporation—this means your pool stays warmer and loses less water. Its blue color not only looks pleasant but also aids in absorbing sunlight effectively.

Sized at 18 by 36 feet and rectangular in shape, it fits many above-ground and inground pools, and you can easily trim it to match irregular pool shapes. Installation is straightforward, as the cover simply lies on the water surface, and it’s recommended to use a reel for easier handling. One thing to note is that the bubbles might look slightly deflated before warming up in the sun, which is normal due to temperature changes.

This cover requires manual installation and hand washing for cleaning. While it provides good UV protection and helps keep debris out of the pool, it does not offer the highest insulation compared to thicker or multi-layer covers. If you want an affordable and practical solar cover that helps heat your pool and reduce evaporation while keeping it cleaner, this VINGLI model is a solid choice.