Best Insulation For Inflatable Hot Tub Top 3 Ranked [2024]

When it comes to keeping your inflatable hot tub warm, having the best insulation is key. Without proper insulation, your hot tub will struggle to maintain a consistent temperature and you may end up spending more money on electricity bills. In this article, we’ll explore the best insulation options for inflatable hot tubs and how they can improve the efficiency and longevity of your tub.

Winter can mean cold nights and chilly water, making it difficult to enjoy your inflatable hot tub. You may be looking for ways to keep the water warm and extend your hot tub season.

Inadequate insulation can lead to heat loss and an increase in energy consumption. The best insulation for an inflatable hot tub will not only keep the water warm but will also help you save on heating costs. It can also help protect your hot tub from damage due to freezing temperatures.

When searching for the best insulation for your inflatable hot tub, consider options such as foam blankets, thermal covers, or inflatable insulation. Look for high-quality materials that can withstand extreme temperatures and weather conditions. By investing in proper insulation, you can enjoy your inflatable hot tub for longer and save money in the long run.

The Best Insulation For Inflatable Hot Tub on the Market Right Now

Discover the best insulation options for inflatable hot tubs and enjoy maximum heat retention while minimizing energy consumption.

1. Thermofloat Spa Blanket

ThermoFloat Spa Blanket

ThermoFloat Spa Blanket: The Best Insulation for Inflatable Hot Tubs

An inflatable hot tub is a great way to enjoy a relaxing soak in your backyard. However, maintaining the temperature of your hot tub can be challenging, especially during cold weather. That’s where ThermoFloat Spa Blanket comes in. It is the best insulation for inflatable hot tubs, providing superior heat retention, energy efficiency, and water conservation.

Product Overview

The ThermoFloat Spa Blanket is a high-quality, closed-cell foam insulation that is designed to fit the shape and size of your hot tub. It is easy to install and can be trimmed to fit perfectly. The blanket is compatible with all types of inflatable hot tubs and can be used both indoors and outdoors. It is made of durable, waterproof material that can withstand harsh weather conditions and resist mold and mildew.

Unique Features

The ThermoFloat Spa Blanket has the highest R-value of 10, which means it has excellent thermal resistance and can retain heat for a long time. It can reduce heat loss by up to 95%, which significantly reduces your energy costs.

The blanket also helps to reduce water evaporation, which is a common problem with open hot tubs. This means that you don’t have to refill your hot tub as often, saving water and reducing your water bill.

The ThermoFloat Spa Blanket is designed for easy installation, and it can be cut to fit your hot tub shape and size. You don’t need any special tools or skills to install it, and you can do it yourself in a matter of minutes.


With the ThermoFloat Spa Blanket, you’ll save money on your energy bill because it is designed to keep the heat inside your hot tub. It is an excellent investment for those who use their hot tub regularly and want to reduce their energy bills.

The blanket helps to keep debris and contaminants out of the water, which improves overall water quality. Your hot tub water will stay clean and fresh for longer periods.

The ThermoFloat Spa Blanket is made of high-quality materials that are designed to last for years. It is resistant to mold and mildew, and it can withstand harsh weather conditions, ensuring that it stays in good condition for a long time.


The ThermoFloat Spa Blanket is not the cheapest option available, but it is an investment that can pay for itself over time. It is important to consider the long-term benefits when making a purchase.

While the installation is relatively easy, some users may find it challenging to trim the blanket to fit their hot tub’s shape and size. This may require some extra effort and time.

In conclusion, the ThermoFloat Spa Blanket is an excellent insulation solution for inflatable hot tubs. It has several unique features that make it superior to other options available in the market. It is energy-efficient, water-saving, and easy to install. Moreover, it improves water quality and is long-lasting. While it may be more expensive than other options, it is a worthwhile investment for those who use their hot tub regularly and want to reduce their energy bills.

2. Smartspa Insulation Kit

SmartSpa Insulation Kit

The SmartSpa Insulation Kit is designed to bring comfort and energy efficiency to your spa experience. Made of high-quality materials and innovative design, this insulation kit provides exceptional insulation to keep your spa water warm and prevent heat loss.

Unique Features

  • Easy Installation: The SmartSpa Insulation Kit is easy to install, requiring no special tools or expertise. Simply place the insulation panels around your spa, zip them up, and enjoy a warm and cozy spa experience
  • High-Quality Materials: Made of durable and water-resistant materials, the SmartSpa Insulation Kit is built to last. Its quality construction ensures excellent insulation and energy efficiency, saving you money on energy costs
  • Custom Fit: The SmartSpa Insulation Kit is designed to fit most spas, regardless of shape or size. Its unique shape allows for a perfect fit, ensuring maximum insulation and comfort.


  • Energy Efficiency: The SmartSpa Insulation Kit helps you save money by reducing energy costs. Its exceptional insulation keeps your spa water warm and prevents heat loss, ensuring you use less energy to keep your spa heated.
  • Comfortable Spa Experience: With the SmartSpa Insulation Kit, you can enjoy a warm and cozy spa experience, even in cold weather. Its high-quality insulation ensures maximum comfort, enhancing your overall spa experience.
  • Durable Construction: The SmartSpa Insulation Kit is made of high-quality, water-resistant materials, ensuring long-lasting performance. Its durable construction also makes it resistant to wear and tear, providing excellent value for your money.


  • May Not Fit All Spas: While the SmartSpa Insulation Kit is designed to fit most spas, some spa models may require customizations to fit well.
  • May Reduce Accessibility: The insulation panels may make it slightly more difficult to access certain spa components for maintenance or repair purposes.

3. Thermawrap 400Mm X 5M X 4Mm Insulation

Thermawrap 400mm x 5m x 4mm Insulation

Thermawrap 400mm x 5m x 4mm Insulation is a multi-purpose insulation product suitable for various applications. It is made of a high-performance polyethylene foam material that provides excellent thermal insulation and acoustic dampening properties. This insulation product is easy to handle, lightweight, and flexible, making it ideal for DIY projects and professional installations.

Unique Features

  • Excellent thermal insulation properties
  • Good acoustic dampening properties
  • Lightweight and flexible
  • Easy to handle and install
  • Multi-purpose use


  • Provides excellent thermal insulation properties that help reduce energy bills
  • Offers good acoustic dampening properties, reducing external noise pollution
  • Lightweight and easy to handle, making it ideal for DIY projects
  • Flexible and can be quickly installed in tight spaces with little to no waste
  • Cost-effective compared to other insulation materials


  • Might not be suitable for high-temperature applications
  • May require additional layers to achieve optimal insulation levels
  • Less durable compared to other insulation materials, requiring replacement every few years in high traffic areas

Buying Guide for Best Insulation For Inflatable Hot Tub

Looking for the best insulation for your inflatable hot tub? Our comprehensive buying guide will help you choose the right type of insulation to keep your hot tub warm and energy-efficient. From foam to bubble wrap, we’ve got you covered!


It is important to look for thickness when purchasing an insulation for an inflatable hot tub because thicker insulation will provide better heat retention and energy efficiency. The thicker the insulation, the more it will retain heat, allowing the hot tub to reach and maintain desired temperatures more easily, ultimately saving on energy costs. Additionally, thicker insulation will also provide a more comfortable and enjoyable experience, as the water will stay warmer for longer periods of time.

Quality Of Material

It is essential to look for quality of material when purchasing insulation for an inflatable hot tub as this will significantly affect its durability and efficiency. Low-quality insulation material will not provide sufficient coverage and protection, resulting in a higher cost of energy consumption, as the heat will be released quickly. Additionally, quality insulation material is less likely to wear out, become damp or deteriorate due to harsh conditions, ensuring longevity of the hot tub. Therefore, investing in a high-quality insulation material will save you money in the long run and result in a better overall experience.


Water-resistance is a crucial factor to consider when purchasing insulation for an inflatable hot tub. The insulation’s primary function is to keep the water at a consistent temperature, and if it isn’t water-resistant, then it won’t function as well. The insulation will absorb the water, which not only adds weight to the hot tub but also reduces its effectiveness. In addition, it can lead to mold growth and even damage the insulation over time.

Another critical reason to prioritize water-resistance when buying insulation for an inflatable hot tub is safety. If the insulation doesn’t repel water, there’s a high risk of electric shock, especially if the insulation is installed poorly. Water and electricity don’t mix, and it can be hazardous if they come in contact with each other. Therefore, it’s essential not to compromise on water-resistance when purchasing insulation for your hot tub to prevent any potential danger.


Durability should be a top priority when purchasing insulation for an inflatable hot tub. This is because the insulation is responsible for maintaining the desired water temperature, and any damage or wear can lead to poor performance and higher energy bills. Durability ensures that the insulation can withstand the wear and tear of use, as well as exposure to elements like sunlight and rain.

In addition, durable insulation will provide better overall protection for the hot tub. An insulation that is prone to wear, tear, and damage can leave the hot tub vulnerable to outside elements or accidents that could puncture or damage the inflatable walls. A strong, durable insulation provides an extra layer of protection and can help prolong the life of the hot tub.


What is the best way to insulate an inflatable hot tub?

One of the best ways to insulate an inflatable hot tub is to use a hot tub cover, a floating thermal blanket, and insulating foam.

What do you put under inflatable hot tub to insulate?

A ground cloth and insulating foam mats are commonly used to insulate an inflatable hot tub.

What is the best insulator for hot tub?

The best insulator for a hot tub is closed-cell foam insulation.

Are inflatable hot tubs well insulated?

Yes, inflatable hot tubs are typically well insulated. Most models use a combination of air chambers and foam padding to trap heat and keep the water warm for extended periods of time. However, the level of insulation can vary depending on the specific model and brand, so be sure to do your research before purchasing.


In conclusion, finding the best insulation for an inflatable hot tub can make a significant difference in the efficiency of the system. The ThermoFloat Spa Blanket has proven to be the top product, providing excellent insulation and easy installation for users. The SmartSpa Insulation Kit comes in second, perfect for those who want to do a DIY project while still achieving top-notch insulation. With the buying guide provided, customers can confidently choose the best insulation option for their inflatable hot tub, ensuring a comfortable and relaxing experience while saving energy and money in the long run.
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Eric Schunk

Hi, I'm Eric Schunk, the main author of OchoWorkshop. I've been working in the hot tub industry for over 15 years, and I'm passionate about helping people find the perfect hot tub for their needs. I've written countless articles and guides on hot tubs, from buying guides to maintenance and repair tips. I pride myself on providing accurate, in-depth information that can help you make an informed decision when it comes to buying and maintaining your hot tub.