Choosing the right 18 x 36 solar cover helps extend your swimming season, reduce evaporation, and keep debris out of your pool. This guide reviews five top options in this size, highlighting heat retention, durability, and ease of use to help American homeowners pick the best fit for in-ground or above-ground pools.
| Product | Brand | Thickness | Key Benefit |
|---|---|---|---|
| VEVOR Solar Pool Cover | VEVOR | 12 mil | Heat absorption and evaporation reduction |
| VINGLI Solar Pool Cover | VINGLI | 12 mil | Extended swimming time; clear bubbles for heat transfer |
| Shop Square 18 x 36 | Shop Square | 16 mil | Premium heavy-duty blanket with debris and evaporation control |
| In The Swim 18 x 36 Ultra Silver | In The Swim | 16 mil | High heat transfer with silver surface for rapid warming |
| BigXwell 12Mil 18×36 | BigXwell | 12 mil | Heat retention with durable PE and easy trimming |
VEVOR Solar Pool Cover 36 x 18 ft
VEVOR’s 36 x 18 ft solar blanket uses thousands of tiny bubbles to reduce evaporation and insulate water. The 12 mil film helps absorb daytime heat and retain warmth at night. It’s designed for both inground and above-ground pools, with durability to withstand outdoor conditions. Users may experience a notable increase in water temperature and longer swimming seasons in moderate climates, while lowering heating costs.
VINGLI 12Mil Solar Pool Cover 18′ x 36′
VINGLI’s 12 mil solar blanket features a blue, bubble-covered design that absorbs heat during the day and slowly releases it, extending swimming time. It reduces water evaporation and helps keep the pool clean by limiting debris when placed correctly. The cover is easy to install and adaptable to irregular shapes, though users should note bubble orientation for optimal results.
Shop Square 18 x 36 Foot Rectangle Solar Pool Cover
Shop Square offers a premium 16 mil blue solar blanket designed for both inground and above-ground pools. It emphasizes optimal heat retention and ease of use, with a focus on reducing evaporation and debris. The heavier thickness provides durability for long-term outdoor use, making it a strong choice for larger, year-round pool installations.
In The Swim 18′ x 36′ Ultra Silver Solar Cover
In The Swim’s Ultra Silver cover uses a 16 mil thickness with a reflective silver surface to maximize heat transfer while reducing evaporative losses. This combination supports faster warming and a longer pool season, particularly effective in cooler climates. It also helps keep debris out and simplifies maintenance.
BigXwell 12Mil 18×36 Solar Pool Cover
BigXwell’s 12 mil option provides a balance of heat retention and flexibility. Its thousands of thermal bubbles trap sun warmth and hold temperature across cloudy days or cool nights. The material is durable and easily trimmed to fit various pool shapes, suitable for both inground and above-ground installations.
VEVOR 36 x 18 ft Solar Pool Cover
VEVOR’s 8 mil version prioritizes lightweight handling while offering daytime heat absorption and nighttime heat retention. It’s designed for quick installation and can be customized to irregular pool shapes. While lighter than some options, it remains durable for seasonal use and helps minimize energy use for heating.
Buying Guide: Key Purchase Considerations
- Thickness and durability: Thicker covers (14–16 mil) typically retain heat better and resist wear, but are heavier to handle. Lighter options (8–12 mil) are easier to manage, suitable for smaller crews or lighter use.
- Heat retention vs. heat absorption: Bubble-rich designs trap heat effectively, while reflective silver or light blue surfaces optimize heat transfer. Choose based on climate: cooler regions may benefit from reflective or thicker blankets, warmer areas from mid-range thickness.
- Compatibility: Confirm the pool type (inground vs. above-ground) and whether the cover can be trimmed to fit irregular shapes. Most 18 x 36 products cover standard rectangular pools but may require customization for unusual layouts.
- Debris and evaporation control: A primary purpose is to reduce evaporation and debris. Look for materials that provide a tight seal and resist tearing from wind or UV exposure.
- Ease of use and storage: Lightweight options are easier to handle. Consider whether you need a reeling system or a simple roll-off design for frequent removal.
- Energy savings vs. cost: The return on investment comes from reduced heating needs and extended swimming seasons. Compare thickness, color, and insulation features to estimate payoff timeline.
- UV resistance and chemical compatibility: Ensure the cover resists sun exposure and remains compatible with pool chemicals to avoid material degradation.
This selection emphasizes 18 x 36 ft options with strong heat retention, durable construction, and practical features for American pools. Readers should weigh handling convenience against long-term durability to find the best balance for their climate and pool type.