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I live in an old apartment which does not have laundry, or even laundry hookups. Since I despise laundromats, I took it upon myself to get a portable washer which connects to a sink, and a portable dryer. Now that summer is here, the dryer really needs to be vented outdoors. I found a bracket that lets me vent it through a window opening, which seems to work well.

This is the vent I'm using: http://www.amazon.com/dp/B00LUCRS9I/ref=sr_ph?ie=UTF8&qid=1462392707&sr=1&keywords=dryer+window+vent

The only issue is that there is some more cold air coming though the gap because there is only a single pane of glass insulating me from the elements now. I decided to get some R-30 fiberglass insulation and stuff it in the gap where the bracket is, between the two window panes. It seems to be doing a decent job. My only question is, is this a safety hazard? I know venting a dryer through a window is not to code, but that is besides the point. I understand that fiberglass insulation is not flammable, correct? Do I have anything to worry about?

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  • As a side note, you shouldn't use that cruddy flexible duct. Instead you should use "semi-rigid aluminum duct", which comes in different sizes, and various lengths as short as 2'. – Tester101 May 4 '16 at 21:52
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    @Tester101 Agreed. The flexible duct may be more of a fire hazard than the insulation. – Daniel Griscom May 4 '16 at 23:48
  • If that is a gas dryer, you should never vent it indoors. It gives off too much carbon dioxide: diy.stackexchange.com/a/56262 – user4302 May 5 '16 at 4:58
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Do I have anything to worry about?

No. The air coming out of the dryer vent is not hot enough to ignite anything.

Otherwise they would require a double walled vent pipe.

Try putting your hand on the pipe while it is running. You will see it doesn't really get very hot.

Good luck!

  • Also fiberglass (without paper backing) is VERY hard to ignite ... even if you try. At best I've just been able to melt it – BrownRedHawk May 4 '16 at 20:19
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Actually if you look closely, I think that I can see one potential issue. The hose might be crimped; you should check that and maybe pull the dryer away from the wall.

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  • Agreed- you want the run to be as short and straight as possible to prevent link buildup. You could easily have a 1 foot run from connection to outside. – user20127 May 4 '16 at 20:33
  • You might look for a close elbow like this : amazon.com/dp/B001AAEG5O/… – ArchonOSX May 5 '16 at 10:12

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