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 dryer vent duct
Author: sum (FL)

I would like some advice on dryer vent ducts.

I have a condo unit with a small closet that's designed to have a stackable washer/dryer unit. Like this.



This is an LG tower which is not designed to be separated, and needs to be shipped, moved, handle as a "tower". It's quite heavy but if I ever need to service it like turn off the washing machine valves or check the discharge hose or clean the dryer vent duct, I need to slide the entire unit out.



Inside the closet on the back wall is the dryer duct connection, and a valve box for cold/hot water and a drain.



The closet is 3.5" deep, and if I slide the tower out say 5', I still have a bit of slack on the cold and hot washer hoses (they are 6' long) but the dryer vent duct pulld s apart because it's a stiff flex duct. The vent connects to the middle of the tower.



Should I get a longer duct of the same kind (A below) or should I get a very flexible duct (B below)?





Edited 1 times.

Post Reply

 Re: dryer vent duct
Author: packy (MA)

i would put a 4 inch aluminum 90 on the dryer then a 4 x 24 inch aluminum vent pipe then another 90. the hose you have should then reach. remember to duct tape the joints..

Post Reply

 Re: dryer vent duct
Author: george 7941 (Canada)

Type B hose should never have much slack in it because it will droop and form a trap for lint.

I don't like packy's solution either because now the flex duct is horizontal and will droop even it is Type A, the stiff flex duct.

I don't think you even need a new stiff flex duct, you can just stretch the existing duct to the length necessary. just don't stretch it any more than absolutely necessary.

While there will be some droop, it will be less than it was packy's way.

Post Reply

 Re: dryer vent duct
Author: sum (FL)

I agree the type A flex duct is not desirable because if too long it will droop and form a kind of P-trap.

So that goes back to the type B stiffer flex duct.

If I stretch it so that it's length is whatever length it needs when the tower is pulled all the way out, then when you push it back in it will also droop some, or bunch up some how that I can't see or reach behind to guide.

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 Re: dryer vent duct
Author: george 7941 (Canada)

There isn't much of a choice with this setup.

Type A will droop but not as much as type B, and the bends will be softer.

The three foot fall from ceiling to middle of tower really helps because the duct can move sideways, reducing the extra length of the duct necessary to pull the tower out.

Post Reply

 Re: dryer vent duct
Author: steve (CA)

Sum, is there a side venting option for the dryer, so the vent could be attached with the dryer in place(if there's enough clearance in the closet)?

Post Reply

 Re: dryer vent duct
Author: sum (FL)

steve, there is no side mounting option.

Post Reply

 Re: dryer vent duct
Author: DaveMill (CA)

Sum you actually have two other choices: recess the vent loop into a wall cavity if there’s room:
[dryerbox.com]

The one I’m considering: a solid vent adapter that mates with the vent outlet in the wall:
[www.amazon.com]

Those come in various lengths, angled for both floor and wall inlets. Google “slide out dryer vent”

Post Reply

 Re: dryer vent duct
Author: sum (FL)

DaveMill,

I have a recessed vent box. The connection is vertically up but the box ends higher than the dryer vent on the back of the tower, and so the duct must make a 90 somewhere.

I have used most of these adjustable vent adapters at my rental. None of them applies to my situation though. If I use one of those that is like an elongated Z shape, I would have to make a 90 at the top to connect to an adapter, than on the low side I have to have another flex duct to lead to the dryer's back, that's three hard 90s.

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