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Stop the draft

November 1, 2008

Windowinsulation

I’ve been getting lots of requests for heaters lately, and it makes sense considering the almost overnight shift to colder weather we’ve experienced here on the east coast. The Farmer’s Almanac is predicting a rather harsh winter for us, on top of the to-be-expected cold temperatures of northern winters. Now, I happen to be one who enjoys the winter time, but when I get home I like to be toasty… personally, I’d rather not be burning 1500 watts of electricity through a space heater just to keep warm (yes, some super cold nights are the exception). So let’s review some simple ways to keep the warmth in your home and the cold out, because there’s no reason that you shouldn’t have the luxury of sitting around in your underwear year round.

Most of the heat that escapes from your dwelling goes out the window, literally. If you aren’t taking the time to properly winterize your windows then you will either be miserably cold or have a whopping heating bill. If you live in an apartment with radiant heat, I can’t recommend more the necessity of insulating your windows, considering the fact that you will have limited (if any) control of the heat output of your radiators.

Heat can escape through your windows in three ways; the result of a draft, through your permanently installed AC unit, or through contact with the window’s glass. Some unfortunate souls may be loosing heat for all of those reasons. Let’s tackle these issues one by one.

If you’re losing heat through a drafty window, stop the draft (duh). You can easily plug a drafty window with a few different products. My favorite is Mortite caulking cord. Caulking cord is sorta like that clay you played with in kindergarten that never dried. You can peel strips of it off the roll and shmoosh it into any gaps in your window. Self sticking foam tape is another option. It comes in a variety of thicknesses and widths. Simply run some along the bottom of your window and close it down hard against the foam. The quickest fix for drafty windows is Weatherseal tape. Weatherseal tape looks almost identical to clear packing tape, but it’s thicker and the adhesive is impervious to cold temperatures. All you have to do is tape over any gaps and presto, draft contained.

If you’re losing heat through an air conditioner, you’ll need to invest in an air conditioner cover. If you have access to your AC unit from the exterior, you can wrap it with a cover on the outside. This will stop drafts from coming through the air conditioner with the added benefit of you not having to look at it all the time. If (like me) you do not have access to your AC unit from the out side, you’ll have to wrap it up on the inside. You can opt for a simple plastic AC cover, but I recommend going the extra mile and splurging on the quilted variety. These covers are just like socks for your air conditioner. Just slip it on and tighten it with some cord if the elastic is too loose. After you have your AC unit covered, check around it for drafts and plug them up using the methods mentioned above.

If you’re loosing heat through your window glass, nothing works better than window insulating Shrink Film. Shrink film is intended for indoor use and is rather easy to install. It comes in different sizes depending on application (large windows, patio doors, etc.) but they all install the same way. Simply make a frame of double stick tape (included with film) on the wall around the window and stick the film to it. Apply some heat with a hair dryer and the film will tighten up, resulting in a crystal clear finish. You have now trapped a layer of air between your window and the film which will prevent air in the room from circulating against the cold window glass. It’s amazing how well this simple product works.   

If you follow these steps and are still a little chilly, put on a sweater and make some hot chocolate.


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Posted by Nathaniel Garber Schoen | Categories: Ask an Expert | Permalink
Comment on this Blog

(13) Comments

I wish I had read this post 3 months ago.

Posted by: Fareed | January 18, 2009 at 05:31 PM

If you’re "loosing" heat ... ???

Posted by: George | October 27, 2009 at 01:39 PM

I find that people who "loose" heat also "loose" readers.

Posted by: Anonymous | October 27, 2009 at 04:46 PM

I find only losers post this kind of nitpicking.

If it bothers you so much, go teach and English class.

Posted by: AnonymousToo | October 28, 2009 at 02:36 PM

it's not necessarily nitpicking to point out bad grammar, spelling and usage.
if nobody (including the editor) lets the writer know how he screwed up, how will he ever improve?
personally, it bugs me to read articles online and see the writers messing up 'loose' and 'lose', 'you're' and 'your', etc.
if it doesn't bug you, fine, but lay off commenters taking a writer to task for being bad at his job.

Posted by: Ben | October 28, 2009 at 08:50 PM

I see that you recommend sticking the tape to the wall around the window. Do you mean actually on the wall itself, or around the window trim. I've always stuck it to the edge of the trim, but I wonder if I've been missing something.

Posted by: Nate Baxley | October 30, 2009 at 11:38 AM

Are there any ways to use shrink film over or under miniblinds so you can still raise/lower/open/close them?

Posted by: Jeff A | October 31, 2009 at 07:13 PM

Ben, it bugs me to read sentences that do not begin with a capital letter.

And thank you for allowing me to help you improve.

Posted by: Steve | November 10, 2009 at 07:41 AM

nice and cool

Posted by: softmint | November 10, 2009 at 11:04 AM

dollar saver idea:
To minimize the tape damage of shrinkwrap I made some wood frames to go inside the window frame. It took a lot of time and looked a little shoddy - mind you it was very effective in eliminating the drafts. It did take a whole weekend to figure it out, but I assembled them in place. A quality measuring tape would have been an asset :)
Also I found clear plastic dropcloths from a dollar store were much cheaper and great from large windows. The plastic was a similar quality to the one 6 times as much, in the window kit. If you have more than one window to do...it is much cheaper to buy the tape separately.
This year I am going to try the bubblewrap technique see if that works as it would be much faster!

Posted by: Leslie | November 12, 2009 at 09:19 AM

You can use shrink wrap plastic with blinds - you just need to have a small hole at the top corner to fit in the stick-thingy that opens and shuts the blinds as well as the cord.

Posted by: Steve | December 11, 2009 at 03:44 PM

"You can use shrink wrap plastic with blinds" - I don't recommend this - especially with darker color blinds on the south/sun side of your home. My forest green mini blinds actually melted when sandwiched in-between the glass and the plastic.

Posted by: Joel | December 18, 2009 at 03:54 PM

I have a draft coming through my AC registers. they are located on my ceiling. How can I seal them.

Posted by: Dale | December 25, 2009 at 02:29 PM

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