Does a solar pool cover really work
John Parsons
Updated on April 15, 2026
75% of a swimming pool’s heat loss is due to evaporation. A solar cover minimizes heat loss from evaporation by acting as a barrier between swimming pool water and the air. Specifically, you can reduce your swimming pool heating costs by up to 70% by using a solar cover.
Should I use a solar cover on my pool?
75% of a swimming pool’s heat loss is due to evaporation. A solar cover minimizes heat loss from evaporation by acting as a barrier between swimming pool water and the air. Specifically, you can reduce your swimming pool heating costs by up to 70% by using a solar cover.
Do the bubbles on a solar cover for a pool go up or down?
These covers generally work in the way the sun rays heating the air trapped within the bubbles. The heat, therefore, is then transferred into the pool water. Thus, this is precisely why the bubbles in the solar pool covers should always face down towards the pool water instead of facing up towards the sky.
How quickly does a solar cover heat a pool?
Directly convert solar radiation into usable heat: In an in-ground pool, a cover can increase the water temperature by 5 degrees F for each 12 hours of coverage.Is a solar cover worth it?
Conclusion: Solar Covers do really work! Both to retain heat and reduce humidity, and when used on outdoor pools, they also add heat to the pool (Liquid Solar does not add heat). … There’s no apparent shortcut, the larger, bulkier solar pool covers just do a better job! Even if they are a pain in the neck.
Should I leave my solar cover on during the day?
For this reason solar covers (unlike solar rings) will actually block sunlight and keep heat out of the pool during the day – not magnifying the sun like many people will assume. So for these reasons a solar cover should be put on in the evening and removed in the morning, for maximum benefit.
Should I cover my pool every night?
You should cover your pool every night for several reasons. First off, a pool cover saves energy and conserves water by decreasing the amount of make-up water. Also, it reduces the consumption of chemicals, and finally, it saves a lot of cleaning time since it keeps the debris out of the pool.
Is solar pool heating worth it?
You can significantly reduce swimming pool heating costs by installing a solar pool heater. They’re cost competitive with both gas and heat pump pool heaters, and they have very low annual operating costs. Actually, solar pool heating is one of the most cost-effective use of solar energy in some climates.Will a pool heat faster with the solar blanket on?
Solar covers will help a pool warm up faster in the spring and help maintain warmth in a pool a little longer in the fall but one misconception about them is that they will warm up a pool in the dead of winter, which simply is not the case. You need a heater for that!
How thick should my solar pool cover be?What Is The Best Thickness for a Solar Pool Cover? After testing, we found that any solar pool cover between 12-mil and 16-mil performed best for heat retention. Higher mil solar covers absorbed more heat and were found to be more durable against the sun damage, chemical resistance, and ripping.
Article first time published onHow much will a solar cover heat a pool?
Heat Retention You can reduce your swimming pool heating costs up to 70% using a solar cover because solar radiation is directly converted into usable heat and could potentially heat the water by 5 degrees for each 12 hours of coverage.
What type of solar pool cover is best?
- The 5 Best Solar Pool Covers of 2021.
- Midwest Canvas Ultra 16 Mil Solar Blanket.
- Blue Wave Clear Solar Blanket for Inground and Above Ground Pools (14-Mil)
- Intex Round Solar Cover.
- Sun2Solar Blue 15-Foot Round Solar Cover / 1600 Series Style.
- Midwest Canvas Ultra 12 Mil Solar Blanket.
Does covering pool make warmer?
Insulating the Pool Water from Heat Loss Air bubbles in the pool cover act as an insulator in a similar way that your thermos would keep water warm. A pool cover will, therefore, keep your pool water warmer for longer.
Should you cover an outdoor pool?
One of the main reasons that we would recommend getting a swimming pool cover, is that it retains the swimming pool heat, thus retaining energy and reducing the overall running costs. Most of a pools heat is lost through the surface of the water. If the pool is uncovered this will make its way into the air.
What month should I open my pool?
The month of March is the BEST time to open your swimming pool. If you wait any longer for the temperature to rise higher than 65 degrees algae and other organics will start to grow.
Will a tarp heat a pool?
It will definitely make the pool warmer. The bottom of the pool will be heated more by the sun, which will transfer heat to the pool water. Hot water rises and cool water sinks (above 4 degrees C anyway) so you’ll get some convection currents to spread the warmth around.
How many solar panels do you need to run a pool?
Most residential pools operate with one or two horsepower solar heater pumps with variable speed options. On average, these pumps will draw about 800 watts per horsepower of energy per hour. Depending upon the panel size, 4 – 6 solar panels are needed to operate a solar-powered pool pump.
Do thicker solar covers work better?
Solar pool covers can be found in 8 mil, 12 mil or 16 mil. In terms of performance, a thinner blanket will allow more heat to pass through to the water, but a thicker blanket will absorb more heat. Thicker blankets are also more durable against UV rays and chemical levels, and punctures or tearing.
Why are solar covers blue?
Blue Solar Covers The blue material is translucent, which allows UV rays to pass through the cover and into the pool and does well enough to block heat from escaping the pool.
Can I leave my solar cover on my pool over the winter?
Clean it, Dry it, Fold it and Store it for the winter. You can leave it on the reel, if you cover it. Keep your water chemistry balanced and remember to remove the solar cover when shocking the pool, and always store your solar cover in the shade or covered on the reel.
How do you store a solar cover when not in use?
To prevent mildew, the cover must be completely dry before it is stored. Your cover likely has seams on which you can fold it to prevent creasing in other, unwanted areas. Once it is folded on the seams, you can roll it up the rest of the way and place it in a large bag. Many solar covers come in a bag for storage.