#1 Home Improvement Retailer

Internet #100139225

Model #SP57/11C

Store SKU #417920

Store SO SKU #923710

Fiberglass Water Heater Insulation Blanket

  • For use with both gas and electric water heaters
  • Reduces water heater recovery time to save energy
  • Durable fiberglass body with R-10 insul.,Fits up to 60-gal tank
  • See More Details

Frequently Bought Together

+
+
Price:

Product Overview

The Thermwell Products Co. Inc. Fiberglass Water Heater Insulation Blanket fits up to a 60 Gal. tank. It is compatible with both gas and electric water heaters. This blanket helps you save energy by reducing your water heater's recovery time.
  • For use with both gas and electric water heaters
  • Fits up to a 60 Gal. tank
  • Insulates a water heater
  • Reduces water heater recovery time to save energy
  • Durable fiberglass body with R-10 insulation
  • East Installation
  • saves money
  • saves energy
  • package includes a roll of plastic tape
  • 3 in. thick
  • Click here to learn more about Eco Options and Energy Efficiency

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.

Specifications

Dimensions

Product Depth (in.)
3
Product Height (in.)
48
Product Width (in.)
75

Details

Compatible Brand/Model
No
Finish Family
White
For Use With
Electric Tank,Gas Tank
Material
Fiberglass/Vinyl
Pack Size
1
Product Type
Blanket/Jacket
Product Weight (lb.)
4.95
Returnable
90-Day

Warranty / Certifications

Manufacturer Warranty
180 days

Questions & Answers

16Questions29Answers

What is the dimensions of the blanket?

Asked by russg March 20, 2021
4
Answers

Product Depth (in.): 3; Product Height (in.): 48; Product Width (in.): 75; fits up to a 60 gallon tank

Can this blanket be used to insulate a built in dishwasher ?

Asked by MDP March 5, 2021
4
Answers

yes

Can this be used on an outdoor hot water heater

Asked by Jamie January 30, 2021
3
Answers

Yes, I have done and helps a lot. Just make sure it is not loose

What is the R rating of this product?

Asked by DH August 31, 2020
2
Answers

This R-10 rating blanket fits up to a 60-gallon tank.

Is the vinyl material just on the outside, or is it on the inside and outside? If it covers the i...

Asked by Tony May 19, 2020
3
Answers

Vinyl just on the outside. Installed mine on a short 50 gallon electric dual element water heater.

I need a blanket for an outdoor water heater (it is in a shed). Wondering if the vinyl exterior w...

Asked by Zenny August 31, 2019
2
Answers

It"'ll be there long after your gone.Put it on it .It works.

i have a low boy water heater. Will this work with it being that its taller?

Asked by lowboy December 29, 2017
3
Answers

no

i need water heater blanket I bought the frost king one, at home depot wher i bought the heate...

Asked by donna December 10, 2017
2
Answers

You do not need it to go all the way to the bottom. The bottom couple of inches in the water heater parts to make it function. Look on YouTube you will see what I mean

Do they work on gas water heaters??

Asked by Tony December 31, 2016
4
Answers

Works on mine!

What is the highest temp. I can take without damage?

Asked by Anibal March 13, 2016
2
Answers

Yes, it can be removed with no issues by cutting the sticky straps. Here we have had temperatures up to 112F and no issues, just dont cover the top of the boiler because it could melt the plastic.

Fiberglass Water Heater Insulation Blanket - page 2

Customer Reviews

  • 3.7
    out of 233 reviews
  • 65% recommend this product
Filter by:
Showing 1-10 of 233 reviews
Easy to install. Tape was of good quality and adhering to the heaters surface. Minimal cutting. O...
Easy to install. Tape was of good quality and adhering to the heaters surface. Minimal cutting. Overall The water temperature did get hotter, proving its working.
by GeorgeP
This is R10. I did have to tape it to the top of the electric water heater cause it kept slipping...
This is R10. I did have to tape it to the top of the electric water heater cause it kept slipping off. I did it alone but would be easier if two people did it. Used the scrap peices for the top of it.
by Worked
Came with everything needed to install on to the heater. Instructions followed simple and easy. A...
Came with everything needed to install on to the heater. Instructions followed simple and easy. As instructions state protect yourself with clothing, gloves, and glasses to protect from fiberglass. Even a light mask for the mouth will help. I added a little tape around the openings to protect, trim and help hold it in place. Fifteen / Twenty minute install time.
by Lutzee1
Installed this on a 40 gallon electric water heater in about 20 minutes. Fit very well. Covered...
Installed this on a 40 gallon electric water heater in about 20 minutes. Fit very well. Covered entire vertical surface and only overlapped a few inches so I did not trim it at all. Only had to cut a slit at bottom for drain valve. Did not cut out for thermostats. I will do that only when I need to. I can feel the thermostat covers thru the insulation so it should be easy to do if required. Since I did not trim I had nothing for the top. I will do that with rigid foam I have left over from a different project. They claim the insulation is 3" but not after being folded, rolled and vacuum packed. I doubt you get the claimed R10 insulation value but it's better than most others I looked at in competitor's stores around here in South Texas.
by mys10v8
1 person found this helpful
Too small for a 50 Gallon water heater with a circumference of 65 inches. You would think this b...
Too small for a 50 Gallon water heater with a circumference of 65 inches. You would think this blanket with a length of 75 inches would do it, but no. It's about 10 inches too short. For a 50 gallon water heater with a circumference of 65 inches you need a blanket that is at least 85 inches long.
by SkyKing73
14 people found this helpful
"Up to" 60 Gallons...if you by the correct model number
I couldn't help but notice how almost everyone commented on the fact that there wasn't enough material. Pay attention to the model number - SP57-11C. If you go to the Frost King website, you'll see there's another model SP60 which is 90 inches round vs. 75 inches. That's the model that fits up to 60 gallons.
by AHR
13 people found this helpful
Easy install
Easier to install with a little help from a 2nd person to hold it in place while cutting/taping in place.
by Bill
3 people found this helpful
Barely Fits around 50 gal water heater
Package says fits up to most 60 gal water heaters. It barely fit around my 50 gal. I have an electronic Whirlpool water heater and it kept messing up due to the cold so that is why I bought this. It does serve the purpose of covering up the digital display and keeping it warm. It actually did not completely fit around my water heater. There is probably a 2-3 inch gap where I had to tape it to the water heater all the way down for it to stay. If I would have stretched it probably would have fit, but if you compress insulation it decreases its R-value which defeats the purpose. I also must say that the tape that comes with it works extremely well.
by Jasper
16 people found this helpful
Product is ok but could be better.
I installed the insulating blanket around a new 40 gal. electric GE water heater and just had enough to reach around the tank. I had no extra material to finish covering the top of the tank. For the price of the Kit they should include more material. Tip: For additional insulating value add an 1" block of high density foam under the tank, if an electric water heater.
by xrayman
14 people found this helpful
by cdmares
Showing 1-10 of 233 reviews