10 Best Liquid Solar Blankets 2025 in the United States

The Sun2Solar Blue 20 ft x 40 ft Rectangle Pool Solar Cover is designed to effectively heat rectangular inground and above-ground swimming pools. One of its key strengths is its ability to raise pool water temperatures by up to 15 degrees using free solar energy, which can result in significant energy savings. Additionally, it excels in heat retention, ensuring that your pool remains warm overnight.

This solar cover also significantly reduces water evaporation by up to 95%, which is beneficial for water conservation and can lower your chemical usage and pool maintenance costs by keeping debris out of the water. It is lightweight and easy to install, thanks to its floating design and the inclusion of six heavy-duty grommets for secure placement. Environmentally, it has a positive impact by conserving water and reducing chemical use.

However, it may require frequent reapplication to maintain its effectiveness, especially during high winds or heavy use. Safety-wise, while it prevents debris entry, it's crucial to ensure it is securely fastened, particularly if you have young children or pets, as it is not a safety cover per se. If you are looking for an eco-friendly way to warm your pool and reduce maintenance, the Sun2Solar Blue 20 ft x 40 ft Solar Cover is a strong contender.

The Blue Wave NS420 12-mil Solar Blanket is designed for rectangular in-ground pools, with dimensions of 16 feet by 32 feet. This solar blanket excels in effectively using thermal bubbles to trap and retain heat from the sun, potentially increasing your pool’s temperature by up to 15 degrees Fahrenheit. This allows for extended swimming seasons, even on cloudy days. The blanket also significantly reduces water evaporation by up to 95%, which can result in lower water usage, making it both environmentally friendly and cost-efficient. This feature is particularly beneficial for those looking to save on maintenance and water bills.

Additionally, the blanket helps keep debris out of the pool, reducing the frequency of skimming and cleaning, so you can spend more time enjoying your pool rather than maintaining it. Crafted from durable 12-mil polymer, it's designed to withstand the wear and tear from regular pool use and can be trimmed to fit your pool precisely. Safety-wise, while it helps maintain a clean and warm pool, it’s important to note that it is not a safety cover, so additional safety measures should be in place if there are children or pets around.

The product is backed by a 3-year limited warranty, ensuring peace of mind regarding manufacturing defects. On the downside, the solar blanket is relatively heavy, weighing about 29.9 pounds, which might make it a bit cumbersome to handle and install for some users. Also, while the product is durable, proper care and maintenance are recommended to prolong its life. This solar blanket is a great investment for pool owners looking to save on maintenance and heating costs while enjoying a warmer pool, though handling the weight might require some effort.

The Blue Wave NS410 12-mil Solar Blanket is designed for in-ground swimming pools and measures 14 feet by 28 feet, making it a good option for larger pools. It boasts a UV-resistant build, ensuring durability even under intense sunlight. This helps increase the pool’s temperature up to 15 degrees Fahrenheit, effectively extending the swimming season.

The blanket's innovative thermal bubbles trap heat, which is especially useful during cool nights and cloudy days. Another strong point is its ability to reduce evaporation by up to 95%, which is environmentally beneficial and also saves time and money on water and chemical replenishments. However, manual self-installation might be cumbersome for some users.

While it comes with a substantial 5-year warranty, regular cleaning with mild soap and water is necessary to maintain its effectiveness. This product is well-suited for pool owners who want to maintain warmer water temperatures and reduce environmental impact, though the manual installation process may require some effort.