What Is the Best Hot Tub Insulation in 2023?

An insulated hot tub could be the ideal setting to unwind after a long day or to organize a get-together with friends. Insulated hot tubs are superior to conventional ones in that they can keep water warm for longer.

This means that the spa’s heat will be retained and not lost. Your spa will need to work less hard to heat the water and keep it hot. When the temperature is maintained in the water heater, it can be greatly beneficial for the comfort of the hot tub user, the environment, and the costs.

The most common hot tub insulation types are thermal blankets, hot tub covers, and full foam insulation. But which one would be a better choice? Well, stick to this article until the end to know the best hot tub insulation this 2023.

Meanwhile, here are our top 3 picks for you to consider.

  • Blue Wave 12-Feet Round 8-mil Solar Blanket. This tops as the best overall hot tub insulation for effectively preserving warmth and easily fits among many hot tub types. 
  • Porch Shield Square Hot Tub Cover- This is the best hot tub cover, ideal for insulation at a considerably low price. This is constructed out of 600D polyester fabric that has a waterproof undercoating.
  • Solar Cover, Round Exclusive Space Age Solar Blanket– The most functional solar cover with a nice appearance and sturdy materials. 

Blue Wave 12-Feet Round 8-mil Solar Blanket

Blue Wave NS100 8-mil Solar Blanket, 12-Feet

With the help of our 8-mil Solar Blanket for Round Above-Ground Pools, you can cut down on the amount of water and chemicals that are lost to evaporation. This blanket is an opaque blue tint to maximize the amount of heat that can be retained while also allowing the maximum amount of sunshine to reach the water. This cutting-edge technology can raise your pool’s temperature by up to 15 degrees Fahrenheit.

Some positive Amazon reviews about the product:

  • Hot tub owners say that this is a very nice solar cover at a good cost. Not only does it heat the water, but it also keeps a good bit of trash from trees and other foreign debris. 
  • Another user said it is one of the best single purchases she had because it worked effectively and was worth every penny. 

Features:

  • Long-lasting. The solar blankets are resistant to the damage caused by chemicals and UV radiation because they are manufactured with a UV-protected polymer.
  • Effectively Retains Heat. Insulating thermal cells allow you to swim in warmer water all summer long. It captures heat and retains it, even on cloudy days when the air temperature is cooler.
  • Offers Reduced Evaporation. Using a solar blanket can prevent up to 95% of the loss of pool water and chemical substances due to evaporation.
  • Extends Through the Season. With the help of this high-quality 8-mil solar blanket, your swimming pool’s temperature can be raised by up to 15 degrees Fahrenheit through passive heating.

Pros

  • Highly Durable
  • Good Value for Money
  • Excellent in Warmth Preservation

Cons

  • It can be way too thin for most hot tub preferences
  • Tends to sink in long-term use
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Porch Shield Square Hot Tub Cover

Porch Shield Square Hot Tub Cover - Waterproof Outdoor SPA Hard Cover Protector 95 x 95 inch

This heavy-duty 600D polyester with waterproof undercoating is used to construct the outdoor SPA cover offered by Porch Shield. Ideal for shielding your outdoor hot tub from the elements. It has high-level double stitching that prevents tearing and breaking apart, and it has all joints sealed and taped, which can boost durability and battle wind and leaks. 

It protects against all types of weather, so your outside hot tub will remain brand new. Plus, the added bonus is that it comes at a fairly affordable price!

Here are some positive reviews of the product on Amazon:

  • A user said it is holding up pretty well, especially during winter. 
  • Another user said it is easy to use and has good coverage and protection.

Features:

  • Multiple Locking Systems. Adjustments for a close fit can be made via sliding clips. The cover is kept firmly in place by buckle straps with quick-release mechanisms, which also stop the cover from sliding or blowing off.
  • Durable Materials. The Porch Shield hot tub cover is constructed out of 600D polyester fabric that has a waterproof undercoating. Provide full protection for your outdoor hot tub against the elements, including the sun, rain, snow, wind, dust, and grime.
  • Heavy Duty And Water Proof. The 600D polyester fabric has high-level double stitching sewn into it, and all of the seams have been sealed with tape. This helps prevent tearing, as well as wind and leaks.

Pros

  • Good value for the money
  • Water-resistant
  • Easy to use and install

Cons

  • Lightweight and may be too thin for windy conditions
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Solar Cover, Round Exclusive Space Age Solar Blanket

Sun2Solar Blue 24-Foot Round Solar Cover | 1200 Series Style | Heat Retaining Blanket for In-Ground and Above-Ground Round Swimming Pools | Use Sun to Heat Pool Water | Bubble-Side Facing Down in Pool

Performs the function of a barrier, preventing dirt and other particles from entering your pool. Because of this, the amount of manual labor and chemical treatment required to keep your pool clean will be cut down. Similarly, it helps cut water loss by up to 95 percent from water evaporation, which retains heat, making it an ideal tool for hot tub insulation.

This cost-effective solar blanket is meant to improve your pool’s water temperature by absorbing the natural sunlight during the day and keeping the heat at night. It does this by retaining the heat during the daytime hours. It is easy for these solar blankets to boost the temperature of your pool by up to 15 degrees without costing you a dollar.

Here are some positive reviews of the product on Amazon:

  • A user said she liked the thickness and believed the materials used were highly durable.
  • Another user said that it had good quality and definitely ramped up the heat on super hot sunny days.

Features:

  • Environment Friendly. The blankets are eco-friendly and contribute to the protection of the environment by lowering the amount of electricity used and preserving water.
  • Durable Material. The material used for aluminum heat shields is designed to retain heat in a more effective manner.
  • Good Insulation Property. It has up to a 23 percent boost in the insulating and heat-generating performance of the bubbles’ design is possible as a direct result of their efficient round shape.

Pros

  • Promising Longevity
  • Good Value for the Money
  • Durable and High-end  Materials Used

Cons

  • May not last for a longer time under critical climate conditions
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CosySpa Energy Saving Hot Tub Spa Cover

CosySpa Energy Saving Hot Tub Cover – Premium Inflatable Hot Tub Lid | 2 Sizes | Protective Rain Overflow Bladder - Round Heat Insulator Technology (1.25m Diameter (Grey) - 4 Person)

Investing in one of the high-end CosySpa inflatable lids is an essential component of owning a hot tub. It is available in two sizes to accommodate a wide range of different hot tubs: the smaller lid has a diameter of 1.4 meters, whereas the larger option has a diameter of 1.6 meters. 

Additionally, it can aid in heat retention because each CosySpa Inflatable lid can successfully minimize the time and frequency required to warm outdoor hot tubs. This can be a significant benefit for those who use their hot tubs frequently.

Here’s a  positive Amazon review about the product:

  • A user said that it is effective for use as an added cover to keep heat and moisture in the hot tub.

Features

  • Low Maintenance. This high-quality cover helps to guarantee that the amount of time spent maintaining the hot tub is kept to a minimum. Not only does the cover prevent foreign objects from falling into the water, but it also reduces the amount of filtration needed.
  • Easy To Inflate. It will only take you a few minutes to put this hot tub cover on and begin using it to maintain the temperature and cleanliness of your hot tub. The cover was designed to be quick and easy to inflate.
  • Provides Additional Filtration. This item, which is designed to bring additional cleanliness to hot tubs, can efficiently keep out wildlife as well as any trash that may have been left behind.

Pros

  • Fast and Simple Assembly
  • Large Coverage
  • Reduced Energy Costs

Cons

  • It may leak air under various rigid circumstances
  • May need to be re-blown up frequently
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Intex Solar Cover

Intex Solar Cover for 12ft Diameter Easy Set and Frame Pools

With the Intex 12′ Solar Pool Cover, you can take advantage of warmer water and an extended swimming season. This pool cover, which has a diameter of 12 feet and is round, helps to keep pools warmer, is simple and cost-effective to use, and can reduce the amount of water that is lost to evaporation by as much as 95 percent. 

The water in the pool is kept warmer for longer by absorbing solar radiation and then re-emitting it from below. There is also a reusable carry bag supplied for your convenience.

Here are some positive reviews of the product on Amazon:

  • A user said that this product is of good value, and works well at keeping water warmer than without a cover. 
  • Another user said that the product has worked great so far, and the water warms up during sunny days and it keeps most of the yard foliage from entering the pool.

Features

  • Effectively Retains Heat.  This solar-heat-retaining cover for 12-foot circular pools cuts evaporation by 95 percent, making it possible for the pool to keep its heat. In addition to that, it has holes for drainage, which stops water from accumulating.
  • Easy Storage. This is convenient to keep, and it even comes with a reusable bag for transporting it.

Pros

  • Good Quality For The Price
  • Economical To Use
  • Efficiently Stores Heat

Cons

  • It has a short handle
  • Not as thick as other expensive products
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Frequently Asked Questions

Can You Put Insulation Around A Hot Tub?

The vast majority of modern hot tubs feature exceptional insulation. Having said that, there is room for improvement in most aspects of an existing hot tub. By installing insulation around the cabinet of your hot tub, you will be able to do two things: capture the waste heat that is produced by the pumps and heater and assist in protecting the pumps and heater in the event that the power goes out.

Should I Insulate Under My Hot Tub?

If you live in an extremely cold environment and you want the water in your hot tub to remain at a constant temperature, it is recommended that you add insulation to both the bottom and the walls of your hot tub. Wall insulation is something you should consider installing in your hot tub if it is on the older side, rattles frequently, or creates a lot of noise in any other way.

What Spray Foam Should I Use In My Hot Tub?

Full foam, multi-density foam, barrier insulation, or FiberCor are the types of insulation that perform the best for hot tubs. When shopping for a hot tub that is also good for the environment, look for one that has complete foam or multi-density foam. If the description does not state that the tub is insulated with full foam, then it is likely that only a portion of the tub is insulated with spray foam.

What Type Of Insulation Is Best For A Hot Tub?

The use of complete foam insulation is the typical practice among the most reputable producers of hot tubs. Full foam is far more energy-efficient than partial foam (uses half or less of the energy that a partial foam tub does), thus the client ends up with a superior hot tub that is cheaper to use. The explanation for this is straightforward: full foam is significantly more energy-efficient than partial foam.

Which Hot Tub Is The Most Energy Efficient?

Although it’s a common misconception, the data demonstrates that Bullfrog Spa models are, in fact, the most energy-efficient hot tubs in their respective categories, making them the only choice for hot tubs.

How Can I Insulate My Hot Tub Better?

You may either purchase do-it-yourself spray foam kits or use firm insulation panels to line the interior of the cabinet to boost the level of insulation in your spa. You may also use fiberglass insulation bats, which you would lay around the shell of the spa or lean against the cabinet to make a fully insulated hot tub.

Conclusion

Insulation is utilized in hot tubs for both thermal and structural functions, with the end goal of lowering your hot tub’s operating expenses and improving the structural integrity of the tub. So if you are planning to install one for your hot tub, make sure to check the best hot tub insulation for 2023 above!