Model # SP57/11C

Internet #100139225

Store SKU #417920

Store SO SKU #923710

null Fiberglass Water Heater Insulation Blanket
0077578023946

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
$21.57 / each
If you buy 3 or more
$19.41 / each
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Frequently Bought Together

Product Overview

  • 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
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

Product Overview

  • 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
Model #: SP57/11C
Sku #: 417920
Internet #: 100139225

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

Specifications

Dimensions

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

Details

Finish Family
White
Material
Fiberglass/Vinyl
Product Type
Blanket/Jacket
Product Weight (lb.)
4.95lb
Returnable
90-Day

Warranty / Certifications

Manufacturer Warranty
180 days

Specifications

Dimensions

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

Details

Finish Family
White
Material
Fiberglass/Vinyl
Product Type
Blanket/Jacket
Product Weight (lb.)
4.95lb
Returnable
90-Day

Warranty / Certifications

Manufacturer Warranty
180 days

Questions & Answers

What's the r rating on the water heater blankets?

Asked by: Janb
So this is very confusing. The Frost King SP57/11C comes in BOTH R=11 and R=10 varieties. Mind blowing. Same model number SP57/11C, different R-value. If you search online you can find different versions of the packages. The R=11 variety is 3.5 inches thick vs 3 inches for the R=10, at least as I've seen it. I've found both versions at Home Depot at the same time. I think the R=10 is more common.
Answered by: Chucks
Date published: 2017-02-14

why not just buy bag of r-13 insulation and cut it in pieces and tape it to fit around any water heater.

Asked by: thinker
I suppose you could but buy some extra tape. Results might not be as neat.
Answered by: Jimmy
Date published: 2017-01-24

Can I use the silver duct tape to tape the insulation?

I bought this blanket at Home Depot, and it doesn't contain the tape that was supposed to come with the kit. Someone must've bought it and then returned it. Anyway, since this was the only one left in the store, instead of returning the item, can I use the silver duct tape to tape it together? Will there be any safety issues?
Asked by: KT
I did use some extra duct tape to complete installation.
Answered by: Jimmy
Date published: 2017-01-24

my water heater is a 40 gal. and I am having a hardtime finding a blanket to fit. do you carry a blanket at least 70 to 72 in. ?

i have a 40 gallon water heater. will this blanket fit?
Asked by: klite
I just used this on my 40 gallon tank and it fit without a problem.
Answered by: Neuf350Z
Date published: 2017-11-12
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Customer Reviews

Fiberglass Water Heater Insulation Blanket is rated 3.3 out of 5 by 96.
Rated 4 out of 5 by from 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.
Date published: 2017-12-19
Rated 1 out of 5 by from Just put this thing on and regret it. I am not opposed to using fiberglass in areas of low or no ... Just put this thing on and regret it. I am not opposed to using fiberglass in areas of low or no traffic such as attics, inside walls, ceilings or floors. In an area such as a basement or utility room, I would not want my children or pets in the vicinity of fiberglass particles. This water heater blanket has exposed fiberglass on all edges. True, you can tape them-up- if you buy extra insulation tape. During installation however, fiberglass fibers will be released in the air and end up who knows where. I could see them flying around when I looked up at the light. No where on the package does it state (for the lay person) to use breathing protection. Only in the "how to" video is that referenced. I wish I would have known of the water heater blanket made from denim prior to purchasing this one, but it is not offered for sale in the brick and mortar stores for some odd reason. It is less than $10 more than the fiberglass option and without the potential worry of harming anyone's lungs or skin. The R-value of the denim blanket is lower, but you could save time and money by forgoing the dust mask, gloves, and coveralls in favor of the denim option. It makes no sense for me to remove the fiberglass blanket now, as I would just throw around more fiberglass. So it will stay there, sealed up a much as possible, until I am forced to remove it for some reason; like a home inspector wanting the specs, or the water heater needing some service. I will order the denim version next time.
Date published: 2017-08-07
Rated 5 out of 5 by from This water tank blanket was perfect for my new Rheem 50 gal gas water heater. The height went fr... This water tank blanket was perfect for my new Rheem 50 gal gas water heater. The height went from the top edge of the water heater down to just above the air inlet vent. Around the diameter of the water heater, there wasn’t any excess and was a bit tight, but it worked. Just some minor trimming around the controller and it was done. No more than 10 minutes to install. I would recommend this product.
Date published: 2018-01-04
Rated 2 out of 5 by from Amount of tape provided was insufficient. Tape does not adhere properly to the vinyl surface. Amount of tape provided was insufficient. Tape does not adhere properly to the vinyl surface.
Date published: 2017-12-26
Rated 1 out of 5 by from Tape does not hold. Size is for smaller diameter tank. Tape does not hold. Size is for smaller diameter tank.
Date published: 2018-01-10
Rated 5 out of 5 by from Works well as insulation of the water heater.... Works well as insulation of the water heater.
Date published: 2018-01-09
Rated 3 out of 5 by from 3 Star Review Rating provided by a verified purchaser
Date published: 2017-11-08
Rated 2 out of 5 by from 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.
Date published: 2016-12-08
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