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Old 09-26-2015, 08:01 PM   #1
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dryer vent for cold climate


last year I literally had our dryer vent pipe turn to ice, the flapper outside just isn't cutting it no mater how much I clean it... so it's letting outside air in through it...

What is the best dryer vent now days? the dryer is literally on the same wall as the vent, so distance to it isn't an issue, unless 2 - 3 ft of pipe is an issue ha...

I've seen a bunch of places recommend ones like in this picture

http://www.bz1-img.com/images_custom...13980_full.jpg

would that be the best air sealing way to go?

also, what's the best way to seal he pipe through the wall? because air seems to leak in... the builders just cut a 4 1/2" hole in the wall and out the exterior sheathing, just foam around it?

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Old 09-26-2015, 08:30 PM   #2
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The Canadian guys will probably be the ones that know how to deal with it the best.

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Old 09-26-2015, 09:20 PM   #3
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The basic aluminum vent with a flapper works for us. If the flapper is not seating then it is warped or damaged or got lint on it and not seating. Never had a complaint about them freezing. You would also need quite a negative pressure in the house to suck air in and freeze. Silicone works fine around the edges. May need to be replaced after a number of years so buy the most expensive kind which lasts longer.

http://www.homedepot.ca/product/ez-a...-4-inch/964097
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Last edited by yuri; 09-26-2015 at 09:23 PM.
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Old 09-26-2015, 09:23 PM   #4
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foam is fine for sealing around vents indoors. outside the uv will damage it.

try to source a metal vent; the plastic gets brittle and snaps after years of uv exposure. some plastic vents may last longer than others.

plastic is only used because it's cheap.
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Old 09-26-2015, 10:36 PM   #5
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The one Yuri mentions is the one I use (for the bathroom vent, drier vent and the stove vent as well). It does freeze shut like most do but thaws and becomes operational pretty fast after you start the dryer.

You don't want that vertical thing you're looking at. It'll trap water and freeze more solid as a result.
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Old 09-27-2015, 08:31 AM   #6
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thanks, the one that is there now is a vinyl siding one, basically all plastic..

as for foam, do I have to use the red foam for heat contact or is it not up to that requirement since it doesn't get hot enough? (just have to check, since I'm not sure of what temps you have to change from normal foam to the fire stop foam)
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Old 09-27-2015, 12:12 PM   #7
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Keeping the lint cleaned from the mechanical parts is paramount and after the clothes are dried as dry as they can possibly be remove them and run the dryer another 5 minutes.

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