Model # SP55/6

Internet #100185601

Store SKU #331759

Store SO SKU #1000403691

null E/O 12 in. x 15 ft. Foil and Fiberglass Duct Insulation
0077578022956

E/O 12 in. x 15 ft. Foil and Fiberglass Duct Insulation

$11.98 /each

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Product Overview

The Thermwell Products Co., Inc. 12 in. x 15 ft. Foil and Fiberglass Duct Insulation can be used on either heating or air conditioning ducts. Insulates against heat loss in winter and cooling loss in summer. Tapes in place.

  • Insulates duct work, helps stop vibration
  • R-6 helps lower energy bills
  • Tapes in place
  • Foil and fiberglass

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Customer Questions & Answers

6 Questions9 Answers

Customer Questions & Answers

E/O 12 in. x 15 ft. Foil and Fiberglass Duct Insulation
E/O 12 in. x 15 ft. Foil and Fiberglass Duct Insulation

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2 answers

Has anyone else noticed a strong odor coming from this product?

This question is from E/O 12 in. x 15 ft. Foil and Fiberglass Duct Insulation
Asked by
florida
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September 13, 2016
I purchased this product a few months ago and brand new out of the package it had a fishy odor to it. I assumed it would clear up after a couple of weeks but after a few months it still stunk. My house has had an off odor to it from about the time I installed this product so in an effort to fix it I've started pulling out this insulation to see if it helps.
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Asked by
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October 29, 2016
Answer: 
No odor at all. Used 2 rolls on the heater duct in my garage. Easy to install and looks just fine.
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September 14, 2016
Answer: 
Please give our Customer Service department a call and we can resolve this further 1-800-229-5700.
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2 answers

Can this be used on exterior ducts?

This question is from E/O 12 in. x 15 ft. Foil and Fiberglass Duct Insulation
Asked by
Palmdale, Ca
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June 30, 2015
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July 2, 2015
Answer: 
If it is exposed to the elements and might get wet, then no.
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July 1, 2015
Answer: 
If it is exposed to the elements and might get wet, then no.
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2 answers

Has anyone ever tried to remove the existing foil wrap around their duct work and replaced it with new wrap?

This question is from E/O 12 in. x 15 ft. Foil and Fiberglass Duct Insulation
Asked by
Essex, CT
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January 29, 2015
I'm wondering if I can do this myself or if I need to hire someone to do it.
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Asked by
Charlotte NC
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Home Improvement Profile: DIYer
November 12, 2015
Answer: 
Absolutely do it yourself. Make sure that after you remove the old insulation , all joints and seams in the metal work are sealed with a duct sealant applied liberally with a cheap paint brush. Very important since duct insulation is not for "Holding" air in. Its for preventing the heat from radiating.
Just a thought if you have old metal ducting, you may want to consider replacing it with insulated Read More
Absolutely do it yourself. Make sure that after you remove the old insulation , all joints and seams in the metal work are sealed with a duct sealant applied liberally with a cheap paint brush. Very important since duct insulation is not for "Holding" air in. Its for preventing the heat from radiating.
Just a thought if you have old metal ducting, you may want to consider replacing it with insulated flex pipe instead. You'd be surprised how many contaminants/allergens are in old piping. Also, if you go with the flex, never, ever, ever use tape of any kind. Read Less
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February 2, 2015
Answer: 
Hi Cheryl01,
If your insulation is damaged it must be replaced.
Mike
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1 answer

Can it be used as a wall protection behind a wood burning stove?

This question is from E/O 12 in. x 15 ft. Foil and Fiberglass Duct Insulation
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October 4, 2016
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Answer (1)

October 7, 2016
Answer: 
This is not designed for this purpose.
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Customer Reviews

Rated 2.7 out of 5 by 18 reviewers.
Rated 5.0 out of 5.0 by Inexpensive and Easy to use Used 3 rolls on the heater ducts in my garage. Had some tough areas to get to but got it done. Installed easily and looks just fine. Not sure what all the fuss is about. Also, it is easily 2" thick. October 29, 2016
Rated 1.0 out of 5.0 by This stuff smells awful Brand new out of the package had a fishy smell to it, after a couple months the smell never went away. Ripping it out. As other reviewers have said it is also very flimsy. September 13, 2016
Rated 1.0 out of 5.0 by Worst. Insulation. Ever The label says this is 2 inches thick, R6. The thickness varies between 1/4" an 1/2". No, it does not expand at all like normal compressed fiberglass insulation. Leave it out for an hour or a month and it is the same thickness. Completely worthless. If you buy it, then just drop it into the garbage can on your way out of the store; save yourself a headache. August 10, 2016
Rated 5.0 out of 5.0 by good value used material to cover an exposed a/c duct in the basement that had been "sweating". wrapped duct and then secured with tape. problem solved August 25, 2016
Rated 3.0 out of 5.0 by Not as advertized The reason I purchased this item was because of the advertisement that it improved air flow. I was required to remove the filter after a couple hours of operation because the air flow was decreased compared to a pleated filter. Price was good. It just did not work in my application. July 16, 2016
Rated 3.0 out of 5.0 by It is what it is For the price, it could definitely be better. Other reviews are correct. The fiberglass is poor quality. It sheds lime crazy. The foil is thin. It tears easily. The fiberglass is however glued to the foil. Just not well. It worked for my application but not without care and a little bit of itching. There are not a lot of alternatives out there. I used it to insulate a dryer duct which runs through unheated space. It might work for you. Just be prepared for some headaches. April 14, 2016
Rated 1.0 out of 5.0 by Junk Sheds large fibers and foil separates quite easily. Wasted my money as roll is now unusable. May 7, 2016
Rated 1.0 out of 5.0 by Buyer Beware I agree with all of negative reviews on this product. It is flimsy and you will be inundated with fiberglass. Comparing it with Flow Master products is night and day. I question if this product actually achieves the R Rating it claims, especially after comparing its quality Flow Master products. I will be returning 2 of the 3 packages of this product that I purchased. February 21, 2015
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