How Fast Will a Solar Cover Heat a Pool?

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Everyone loves the convenience of a swimming pool in their backyard. For those summer days when it’s blistering hot, your pool feels like a luxury. However, no one wants to only swim comfortably, in the summer during the middle of the day. Sometimes by the late evening, what was once warm water has gotten unbearably chilly. As the sun goes down pool water loses its warmth rather quickly. Swimming is an encouraging means of cardiovascular exercise; physicians suggest you swim but warn individuals to be aware of losing too much body heat. These are all reasons why heating your pool is beneficial. Make the most of your investment and swim year-round. While you can opt for an electric heater,  it requires a lot of energy and can make your utility bill skyrocket. The better and more sustainable alternative is a solar cover. Solar covers allow the sun to trap heat in your pool using the most powerful energy source we have, the sun. Not only will your solar cover conserve energy but it will also protect your investment by reducing maintenance costs. Continue reading to see how solar covers can conveniently give you access to swimming during all four seasons. 

Why Do I Need a Solar Pool Cover?

Source: Forbes

Solar pool covers, for one, are sustainable and help cut down on excessive and unnecessary use of energy. Your pool cover will prevent dust, debris, unwanted critters, and algae from floating around in your water. Nothing is worse than finding out your pool has become a cesspool for bacteria. Solar covers are also low maintenance. Depending on the type of cover you invest in, it’s just a matter of putting the cover on and taking it off. Having a solar cover will save you money by reducing the evaporation of the pool water which in return reduces the cycle of replenishing your pool with necessary chemicals. If you live in a particularly hot/dry climate, you’re more vulnerable to evaporation. 

What Is The Right Time To Use A Pool Cover?

The short answer is every day of the year. It’s easy to think that covering your pool is only beneficial at night because the sun has gone down at that point. This isn’t illogical thinking. However after the sun goes down, the evenings become cool and your water temperature drops rapidly. The best solution is to cover your pool whenever it is not in use. Retaining the heat works the best when the pool is covered and retaining heat from the sun. In the winter months, the air is cooler for consecutive days at a time; it’s best to keep it covered all season until you want to swim.

Also Read: How To Install A Solar Pool Cover

3 Types of Solar Pool Cover

There’s a variety of covers to choose from on the market. These are three types that are recommended.

  1. Solar Blanket

    Solar blankets are sometimes referred to as solar bubble cover due to their resemblance to bubble packaging wrap from your delivery box; the bubbles use their UV soaking power to capture heat, lock in moisture and retain heat from the sun. Usually made of plastic, replacement is suggested every 2-3 years due to deterioration.
  1. Solar Rings

    Solar rings are made up of 2 layers of UV-resistant vinyl. You have the option to purchase it as transparent or opaque, the choice is yours. Although, know that transparent covers will increase your water temperature by 5 – 15 percent. While opaque covers will increase your water temperature by 20 – 40 percent. Unlike solar blankets, solar rings can be layered and come in square sizes. If you have a more geometric-shaped pool, this option is better for you. If you opt for this type, attach your cover with magnets. Magnets will hold it in place, cover more area and cover a larger area. 

Also Read: How To Make Solar Pool Rings

  1. Liquid Solar Covers

    So if you’re not into either of those options and want to opt for something with less hassle and less bulky equipment, liquid solar covers are the better option. You’ll usually find it in a bottle or pill form. Before utilizing this method, be sure to measure your pool and check the manufacturer’s instructions. By dropping the solution in the pool, an invisible layer will create itself and act as a barrier that sits on top of the water. The barrier will retain heat and disperse it amongst your water. While this is less hassle, you must replace this method every 30 days.

Frequently Asked Questions

Should I Cover My Pool At Night?

Yes, your pool shouldn’t get more than 6 hours a day. 

Can I Use Bubble Wrap As A Solar Pool Cover?

No, you can not. Store-bought bubble wrap won’t retain the heat and will deteriorate much faster due to its thinness. 

Is Solar Pool Heating Worth It?

Yes, solar pool heating is worth it. Who doesn’t want to save money and help the environment? It’s the best option to make sure you get the most of your investment. 


Solar panels are worth it and will help you take better care of your pool. Always try and keep your pool at a p.H balance of 7.4. Buying the thickest cover will benefit you most in the long run. Keep your cover cleaned and stored properly as much as possible. Happy swimming! 

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