Best Water Heater Blankets of 2020 – Ultimate Round-up

| Last Updated: March 1, 2021

Water heaters are an essential part of any household. But they also consume a considerable amount of energy which may make them not very cost-efficient.

One way around this issue is to use a water heater blanket. This not only allows them to be more energy-efficient but also more efficient, in general. 

Need to Hire a Plumber for a Water Heater?
Get help from a qualified plumber in your area now!

This article will guide you to pick the best blanket for your water heater.

Comparison Chart of the Best Water Heater Blanket

IMAGEPRODUCT
  • Suitable for a variety of heater sizes
  • A water heater insulation blanket designed for every weather
  • Available in five different sizes and thicknesses for users to pick from
View Latest Price →
  • Non-fiberglass material designed to fit up to 80 gallons
  • Great thermal insulation for increased energy efficiency
  • Comes with an Energy Star certification that ensures an efficient use
View Latest Price →
  • Best for the money
  • Available in four different variants according to size for users to pick from
  • Staple tab unit that comes with perforated bubbles ¾ inches along each edge
View Latest Price →
  • Best 40 Gallon Water Heater Blanket
  • Features Class A fire rating and a trusted quality built
  • Equipped with a patented reflective foil that ensures greater efficiency
View Latest Price →
  • Stops heat loss efficiently by 97%
  • Best 80 Gallon Water Heater Blanket
  • Includes all materials required for installation along with a guide
View Latest Price →
  • Best R11 Water Heater Blanket
  • Stops about 97% of heat loss and maintains the temperature
  • Features a consumer payback of 6-12 months with high energy-efficient use
View Latest Price →

What is a Water Heater Blanket?

As the name suggests, a water heater blanket is a product designed to work as a blanket for water heaters. It is basically a thick insulating sheet that wraps around water heaters to save it from excessive heat loss and maintain their temperature. 

This function also allows water heaters to function even more effectively. But that’s not where it ends. Since these units can maintain their temperatures, they do not need any more electricity to change the temperature again, making them highly energy-efficient.

What Size of Water Heater Blanket Do I Need?

Since these units are designed to wrap around your water heaters, the size you need depends upon the water heater you own. For a bigger water heater, a bigger blanket would be needed to surround it sufficiently. Keep in mind, there isn’t a water heater blanket tailor-made for every water heater; therefore, it may be tricky to find units that are a perfect fit for your heater.

What Makes a Great Water Heater Blanket?

Water heater blankets are relatively simple products, but they still need to be chosen carefully in order to make the best out of them. There are a few aspects that need to be considered while picking one of these units. Here are a few things that you need to keep in mind while doing so;

R-Value of the Unit

The first thing you need to check is the R-value of the unit. What is an R-Value, you ask? It is simply the value that allows you to determine the thermal resistance of the product. The higher the thermal resistance, the better the blanket will perform its function.

Need to Hire a Plumber for a Water Heater?
Get help from a qualified plumber in your area now!

Material Used

The material used has a great impact on the quality of its performance. The most commonly used materials are fiberglass and cotton. Both of these materials provide great insulation for the heater, but each comes with a different set of properties that determine which is the better pick for the user.

Size and Thickness

The dimensions of the blanket you opt for depends upon two things. While its size depends upon the size of the heater, the thickness of it depends upon the use and functionality you expect from the product. A thick blanket will allow a better insulating property.

Quick Take: Best Water Heater Blankets

Review of the Best Water Heater Blankets

Since you now know what features to look at while considering a water heater blanket, we can now cut to the chase and get to the real business, which is picking a water heater blanket. Listed below are some of the best water heater blankets, reviewed for your ease and convenience. All you need to do is go through them and take your final pick.

Frost King SP57/11C All Season Water Heater Insulation Blanket, 3” Thick x 48” x 75”, R10

PROS

  • Can be used for heaters as big as 10 gallons
  • Greatly improves the functioning efficiency of the heater
  • Designed to be used for gas, oil and electric water heaters
  • Comes with a roll of plastic tape to hold the blanket around the heater
  • Vinyl-backed fiberglass material construction that allows a greater level of insulation

CONS

  • Insulation material may fall apart with time
  • Fiberglass scraps can be dangerous to deal with
  • Not designed to be used with bigger-sized gallons

What Recent Buyers Report

Those that have recently invested in this unit and tried it for themselves have all absolutely loved it and its functionality. Users may have found the installation a little tricky, but once they got through with that, they realized that its functioning was absolutely outstanding, making it their favorite product.

Why it Stands Out to Us

This unit comes with sufficient features that put it on the top of this list, but what really stands out to us is the size of this unit. It is available in a number of different sizes, all of which cover the standard sizes of water heaters, allowing there to be a unit for almost anyone.

Who Will Use This Most

This unit is not only designed to provide the best of functionality, but also that of ease and fitting. Given these three features, this product serves to be compatible with almost any water heater, making it the ideal product for any user.

Bottom Line

Being on top of this list, this unit and its features speak for itself. There isn’t anything about it that the users have found to complain about, which is why we think it is the absolute best. There are very few, if any, products out there that could match its functionality.

Water Heater Blanket Insulation, 'NON FIBERGLASS', Fits up to 80 Gallons, Energy Star Certified,

PROS

  • Reduces the heat loss by 40%
  • Designed to be used for gas or electric water heaters
  • Designed with a thickness of 5mm that allows greater insulating properties
  • Efficiency of the product allows you to save 2x of your energy consumption
  • Features an R-value of 7.1 that ensure greater thermal insulation provided by the unit

CONS

  • Installation process might be tricky and take a while
  • Oil-water heaters are not highly compatible with these units
  • Provided foil tape does not work well and users may need to invest in a better one themselves

What Recent Buyers Report

With this product, the only issue that the users seemed to have was with the tape that came along with it. But that is all. Other than that, they found this unit highly efficient at its job. They claimed to notice a great change in not only the heater’s functionality but also energy consumption.

Why it Stands Out to Us

There are a number of things that we like about this unit, but our favorite is its keen choice of materials. Unlike a number of other products that may prove to be harmful for the users, this particular product features no such components that may be harmful or toxic for the users.

Who Will Use This Most

One of the best features of this product is its size. The large size of this unit allows it to be a perfect fit for about any water heater, even the larger 80 gallon ones, too. Due to this, this unit serves to be the perfect product for those who are tired of looking for a sufficiently-sized water heater blanket that works efficiently but has struggled to find one.

Bottom Line

No more scanning through long lists of water heater blankets to find one that would fit your large-sized water heater. This unit right here is the one you need. It will not only provide a perfect fit or your heater but also provide the perfect functionality you have been looking for.

Best for the Money:
Reflectix ST16025

Reflectix ST16025 Staple Tab Insulation Roll, 16 in. x 25 ft

PROS

  • Specially designed to inhibit and limit any sort of condensation
  • Includes no toxic or allergic components to ensure user-friendliness of the material
  • Metallic foil surface is designed to repel heat and maintain the heater’s temperature
  • Features an air bubble lining that prevents the transfer of a considerable amount of heat
  • With the reflective insulation system, it can be used in a crawl space, attic, wall, and metal buildings, and frames, as well

CONS

  • Provided tape may fail to hold the blanket in place
  • Sizes available may not be a perfect fit for all heaters
  • Installing the unit might be a little tricky for users

What Recent Buyers Report

Users will tell you how ideal this unit has proven to be for their water heaters. But some users will also tell you how they found it to be perfect for other uses, as well. This product has served to be an all-in-one unit that has provided them with perfect functionality, as well as a great energy-efficient use.

Why it Stands Out to Us

What really strikes us about this unit, other than its efficiency and use, is its installation method. The installation may be a little tricky, but it is highly efficient as the stable tabs created to hold the unit in place perfectly. Unlike the taping option that is also available, the staple method does not come apart and lasts longer.

Who Will Use This Most

There are a number of users that we can envision investing in this unit. But this product, with its high efficiency and low price point, proves to be the perfect unit for all those that are looking to invest in a water heater blanket, but with a smaller budget.

Bottom Line

If we started talking about the high functionality and energy-efficient use of this blanket, we might go on forever. But we’ll let you experience the magic of its features for yourself. And if you think you’ll have to spend a great amount of money for a unit like that, think again.

Best 40-Gallon Water Heater Blanket:
 Reflective Foil Hot Water Tanks Heater Jacket

HOT WATER TANK HEATER INSULATION JACKET DIY 'PREMIUM' KIT :ENERGY SAVING REFLECTIVE FOIL FITS 40 GALLON/180 LITRES. MANUFACTURER OF THIS KIT FOR 27 YEARS. EXCLUSIVELY SOLD BY 'JR GLOBAL SALES' ONLY

PROS

  • Comes with a detailed guide for the installation process
  • Comes at an affordable price with a great set of features
  • Sturdy material that will be sure to stay in place once installed
  • Provides sufficient energy savings to pay for itself in a few months
  • Allows a considerable improvement in the performance of the unit

CONS

  • Product may not last as long as expected
  • Not ideal for use in extreme temperatures
  • Handling the material may be a little tricky for the users

What Recent Buyers Report

If user reviews serve to be the final word for you, then you will find this unit to be your ultimate choice. All those who have invested in it have not been the least bit disappointed by any of its features. This is why they also recommend it to other users.

Why it Stands Out to Us

This unit has a lot to offer, but what makes it better than the rest is its fire-rated build. Such a design allows this unit to be considerably safer than others. It features a Class 1 rating that ensures it won’t catch fire and can be safely used for all kinds of gas and electric heaters.

Who Will Use This Most

With the 40-gallon design of this unit, bigger water heaters might not be highly compatible with it. Thus, if you own a smaller water heater, approximating to 40 gallons, then you may find this to be the perfect fit, with the perfect functionality you have been looking for.

Bottom Line

Looking for a blanket for your 40-gallon water heater? Well, we’ve got the right product for you. This product will show you what ideal functionality and energy saving is like. With its high-grade manufacturing, this is a unit that is simply designed to provide its users with the best.

Best 80-Gallon Water Heater Blanket:
US Energy Products Water Heater Blanket Insulation

US Energy Products Water Heater Blanket Insulation,'Non Fiberglass', Fits up to 80 Gallons Tank Industrial Strength, Commercial Grade, No Tear, Radiant Barrier Wrap for Weatherproofing

PROS

  • DIY kit allows users to install the blanket themselves
  • Designed for guaranteed satisfaction by well-known manufacturers
  • Class 1 fire rating makes the unit suitable for gas, as well as electric heaters
  • Unit also available in other sizes for users to choose for different water heaters
  • Patented reflective foil allows the product to maintain the standby water temperature

CONS

  • Installation may not be as easy as that for other units
  • Tape provided does not stick to the blanket sufficiently
  • Changes in the electric bill may take some time to be noticed

What Recent Buyers Report

Users have marveled at this product for almost all of its features. Before investing in it, they were impressed by all the features the unit provided, and once they did, they were stunned by how well all these features performed. According to the users, it left no space for complaints at all.

Why it Stands Out to Us

With this unit, what is there not to love? But one feature that stands apart from the rest is its commercial-grade and industrial-strength build. Such a design ensures the unit lasts longer and that the user’s investment goes a long way, rather than wear out in a few months.

Who Will Use This Most

This unit has proven to perform better than a large number of products available in the market, which is why almost anyone would love to invest in it. But considering its size and functionality, it is designed to be the perfect choice for anyone owning an 80-gallon water heater.

Bottom Line

If your 80-gallon water heater is not covered with a blanket yet, then you need to invest in this unit right away. With proper use of this product, you will notice all the performance changes you have wanted, and save a greater amount on your electricity bills.

Best R11 Water Heater Blanket:
 MD R-11 Water Heater Blanket 04689

PROS

  • Available in sizes to cover heaters up to 60 gallons of size
  • Available instructions to make the installation process easier
  • Comes with all the materials that users require to install the unit
  • Fire-rated kit with no foam spacers to ensure security and protection
  • Designed by trusted manufacturers that provide a high level of quality products

CONS

  • Unit not as thick as some others for heavy use
  • Top piece may not be big enough for some units
  • Users may need extra adhesive to keep the unit in place

What Recent Buyers Report

User reviews are one of the main factors that put this unit on this list. Almost everyone that has used this heater blanket has found it to be beyond perfect. From its installation to its functionality, every aspect of it has failed to disappoint users, which is why it seems to be a popular item among them.

Why it Stands Out to Us

There are so many features of this unit that we feel need to be appreciated, but topping those features is its do-it-yourself installation. This water heater blanket comes with a complete kit that allows users to enjoy the experience of installing their water heater blanket all by themselves.

Who Will Use This Most

Standard units are designed to provide users with only a limited R-value that provides standard or substandard insulation. But with this unit, you get to experience a lot more. If you, too, are looking for a higher R-value unit, then this one will serve to be the perfect choice for you.

Bottom Line

If you are looking for that extra mile of insulation, then no other unit will provide you with better than this. With this product, you get to experience the best of R11 thermal insulation with the perfect functionality you have been looking for. This unit is one that is simply designed to impress.

What Do I Need to Know Before Buying?

Now that you have a good idea of how to choose a water heater blanket, and have gone through some of the products, picking your final product may seem like an easy option. There are still a few things you need to know about these blankets so you can make the best out of them.

Installation Process

The installation process for every product is not the same. While some of them come with extremely easy installation, the same can’t be said for others. Some of these products may be quite tricky to deal with and require assistance to be put on.

Allergic and Toxic Materials

While not all products may specify it, some of them may contain materials or components may prove to be allergenic or even toxic for some users. It is, therefore, necessary that you lookout for products that mention their non-toxicity and are non-allergic.

Conclusion

A water heater blanket may be all you need in order to see a better change in the performance of your water heater, as well as its energy efficiency. All you need for that is a keen consideration of the important aspects in order to ensure you have picked the right unit for yourself. And with that, you will be able to experience the best of these units.

Need to Hire a Plumber for a Water Heater?
Get help from a qualified plumber in your area now!

My name is Bob Wells and I am a retired HVAC tech from Washington state. I am currently retired and no longer do much with HVAC, however, I feel like I have a lot of knowledge in the subject and I wanted to create a website where I could talk about what I've learned and help upcoming HVAC techs. Find more info about me and HVAC Training 101.