Cut a dedicated dryer vent if at all possible. It’s awesome.
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Just googled to see what that was. I did not know those things had a specific name. That helps!
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And add a blast gate as well. The you can leave it installed and just slide the gate piece to close it off when you’re not using it.
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Do you have a picture of what a good blast gate might look like? Google gives me conflicting things for that.
I use a louvered dryer vent and have no problems with that.
(there are others on here as well)
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Pretty sure my original hose started with holes. I replaced it immediately. We have casement windows, though, and my insert isn’t quite airtight. A year and a half later and still a work in progress!
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Don’t wait! My in-line fan just sits on the table next to the GF.
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My issue is that I want to mount a 6" outside and can’t be bothered to work out the logistics of electricity and weatherproofness.
Why outside out of curiosity?
Quiet.
POWERTEC 70108 4-Inch Blast Gate for Vacuum/Dust Collector
https://www.amazon.com/dp/B005VRPQ92/ref=cm_sw_r_sms_apa_i_tGtgEbF88AG6F
You can also find them at Home Depot.
There are designs for d-i-y versions here but for the price it wasn’t worth it to me to go to the trouble of building one.
I also have a louvered cover on the outside but I’m a belts & suspenders kind of guy.
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I’ve noticed that no matter how much tape I use or how much I spend on quality brands, it eventually tends to let go and create leaks.
Try 3M aluminum tape. It is what professionals use for duct work.
A bit expensive, but it has many uses as it holds up much better than polymer backed tape.
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And the entire section inside the house is negative pressure when it is running. So tiny leaks have room air flowing into the hose and piping - not smoke leaking out like a positive pressure hose.
Someone suggested mastic tape. Huge difference.
That might have been me.
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Bought the insulated hose at least 6 months ago, the in-line fan and a controller at least 3 months ago.
Just cut down all the Christmas cardboard and shelved it, now this weekendI plan to finally get it done. Right after I clean the exhaust fan. 
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WOW. Got the insulated hose today as well as a few things to improve my window setup (no more cardboard) and WOW. When you said it would cut down on the noise I don’t know what I expected but like whoa. It really does to an impressive degree.
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