Internet #100170479

Model # SP90A

Store SKU #329730

Store SO SKU #923710

0077578052168

Frost King

Space-Age Material Reflective Water Heater Blanket - R3.5

$ 24 22

Overview

The Thermwell Products Co. Inc. Fiberglass R19 Equivalent Water Heater Blanket helps you save energy by making your gas, oil or electric water heater more efficient. The fiberglass blanket is backed with foil. That enhances insulation to an R19-equivalent level without adding excess bulk to your heater.
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Frequently Bought Together

Frequently Bought Together

Product Overview

The Thermwell Products Co. Inc. Fiberglass R19 Equivalent Water Heater Blanket helps you save energy by making your gas, oil or electric water heater more efficient. The fiberglass blanket is backed with foil. That enhances insulation to an R19-equivalent level without adding excess bulk to your heater.
  • For use with gas, oil and electric water heaters
  • Fits up to a 60-gal. heater
  • Space-age blanket insulates your water heater for greater efficiency and energy savings
  • Reduces water heater recovery time
  • Durable fiberglass body with R19-equivalent insulation
  • Blanket is backed with foil that enhances insulation without adding excess bulk to your heater
  • Foil tape included

Product Overview

Model #: SP90A
Sku #: 329730
Internet #: 100170479

The Thermwell Products Co. Inc. Fiberglass R19 Equivalent Water Heater Blanket helps you save energy by making your gas, oil or electric water heater more efficient. The fiberglass blanket is backed with foil. That enhances insulation to an R19-equivalent level without adding excess bulk to your heater.

  • For use with gas, oil and electric water heaters
  • Fits up to a 60-gal. heater
  • Space-age blanket insulates your water heater for greater efficiency and energy savings
  • Reduces water heater recovery time
  • Durable fiberglass body with R19-equivalent insulation
  • Blanket is backed with foil that enhances insulation without adding excess bulk to your heater
  • Foil tape included

Info & Guides

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Specifications

Dimensions

Product Depth (in.)
1
Product Height (in.)
75.0
Product Width (in.)
48

Details

Finish Family
Silver Metallic
Material
Foil & Fiberglass
Product Type
Blanket/Jacket
Product Weight (lb.)
3.25lb
Returnable
90-Day

Warranty / Certifications

Manufacturer Warranty
90 days

Specifications

Dimensions

Product Depth (in.)
1
Product Height (in.)
75.0
Product Width (in.)
48

Details

Finish Family
Silver Metallic
Material
Foil & Fiberglass
Product Type
Blanket/Jacket
Product Weight (lb.)
3.25lb
Returnable
90-Day

Warranty / Certifications

Manufacturer Warranty
90 days

Questions & Answers

Should this blanket be removed in sumer time

Asked by: Frankjm
If you're concerned about whether an insulation blanket might make your water heater too hot during the summer and maybe burn something out, don't worry--the water heater's thermostat will keep the water temperature inside the tank where you set it, all year.
Answered by: JohnS
Date published: 2019-02-28

Is the reflective foil aluminum?

Asked by: DIY
FYI, a reflective material like aluminum only provides insulation value (resists the flow of heat from one location to another) if there is open space between the source of heat (water heater, in this case), and the reflective surface. If the reflective surface is in direct contact with the source of heat, it provides virtually no insulation value. Remember, aluminum is used in cookware, in which the idea is to transfer heat from the heat source to the substance being heated; in this use, you do NOT want any insulation effect. Bottom line: reflective material, like aluminum, only has insulation value if it is not in contact with the source of heat, but there is empty space maintained between the heat source and the cooler, surrounding environment.
Answered by: Tinkerer
Date published: 2019-01-08

My water heater is 68 gal - would two work?

Asked by: soulsmumma
The specifications say it is 48 inches X 75 inches. Measure your tank to see if it will fit.
Answered by: SkyKing73
Date published: 2018-04-28

My Water heater is Electric, and located in our garage, would this still be helpful for Electric ...

My Water heater is Electric, and located in our garage, would this still be helpful for Electric as well
Asked by: RAERAE
Yes . I bought this for a 40 gallon electric water heater and i used it to insulate the tank from 8 inches up from the bottom of the tank and it works very well saving approx 30% electricity usage over the month and the water flows much hotter
Answered by: willis
Date published: 2018-01-03
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Customer Reviews

Space-Age Material Reflective Water Heater Blanket - R3.5 is rated 3.7 out of 5 by 35.
Rated 5 out of 5 by from I believe this to be a very good product; ... I believe this to be a very good product; it came with exactly the right amount of material to cover the sides of the heater and most of the top as well. Be sure to wear protective gloves and dust mask while cutting and handling. Cuts well with scissors and utility knife.
Date published: 2019-03-26
Rated 3 out of 5 by from Online description is NOT accurate; product / tape OK Package says "Acts like R19 Value*" in font that is 1/4 inch high, top center of packaging. Package says " 3.5 R Value" lower down in smaller font. I don't understand the physics of this heat transer equality -- possibly it's the New Math. The ONLINE description states this would cover a 60-gallon water heater, which I would strongly dispute. The ACTUAL PACKAGE does not make this claim, merely has the dimensions of the product adverstised on the package. I own a 40-gallon water heater, and used every square inch of this product to barely cover it. Some advice about cutting it follows. The top of my water heater is 75 inches from the floor, so I made the first cut into the product about 75 inches from the end, making a very long rectangle. This section was taped to the water heater using the supplied tape. The remnant piece was then taped over the exposed area, using the supplied tape. The tape was fine, separated from the backing okay, and had good adhesion to the product. I did not have any left to cover the top. It took me about 20 minutes to install. As the majority of the surface area is the SIDE of the water heater, and not the TOP, I judged the water heater was sufficiently covered. The product itself seems fine, but the advertising of it's capability (R-value and what water heaters it would fit) definitely needs improvement to gain the confidence of the customer. Bottom line: it worked fine for me, but I was annoyed by the inaccuracy of the advertised features.
Date published: 2012-10-30
Rated 1 out of 5 by from Misleading advertising As the previous reviewer stated, it had a different & lower R value on the package. I asked my local store why? " It WOULD BE R19 EQUIVALENT when added to the insulation already calculated from the water heater itself." NOT what I wanted. Bought the R11 from the store for a lower price but overall higher R value. Only difference was the backing of foil and the thickness of fiberglass.
Date published: 2011-09-17
Rated 2 out of 5 by from Not R19 -- says R Value 3.5 on packaging This was available in the store, but I bought online because product descriptions says R19 Equivalent.......not sure why you advertise this way when it is not R19 Equivalent on package.
Date published: 2011-10-11
Rated 3 out of 5 by from Not particularly pleased. It didn't fit my 60 gallon tank as advertised (too short); aluminum tape didn't adhere to the insulated foil backing as well as it should have.
Date published: 2011-10-25
Rated 2 out of 5 by from Not Really Worth the Money Using Plain R22 with backing would have been better and cheaper. This product was not cut for a water heater jacket. It is just a flat piece of foil backed insulation. You have to cut it exactly to fit, with no room for error. The waste has to be used to cover the top.
Date published: 2011-11-29
Rated 2 out of 5 by from What I learned when I got home. When you replace a water heater you usually do it in a rush. So the value of the blanket, I don't know. The quality was OK. I didn't shop around on the price. It only took a few minutes to install. The aluminun tape that came with the blanket would not seperate from the paper backing. I had to use my own. The blanket was about 12" short in heigth from covering the 59" tall 50 gal.water heater. I had to use part of my old blanket to finnish. Like I said I was in a rush. I didn't stand there and read the complete print on the bag. My fault I assumed a water heater blanket would cover a water heater.
Date published: 2012-02-21
Rated 3 out of 5 by from Stop the Cold I have a 50 gallon water heater this blanket is too small and the directions on the packaging say "vinyl side out" there is no vinyl side on this product both sides are silver paper like material. Might be a better product for smaller water heaters.
Date published: 2011-12-06
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