[Carpet]

I have a wall-mounted receptacle for my clothes dryer directly behind the dryer duct outlet, it gets crammed back there and I'm worried about the power cable touching the duct. Is it better to put in an in-wall receptacle (e.g. a 2 gang old work box), or is it fine the way it is? I would just move the box to the left or up 1 foot, but there's not enough slack in the wire.

The wall receptacle box is in the picture below as the black box on the wall in between the dryer duct, this is with the dryer pulled out about 1 foot.

 

[seharper]

I wouldn't use an old-work box. Insertion and removal forces on NEMA 14-30 sockets can be extreme. If it's only grabbing onto drywall with a few hooks, that's how old-work boxes work, then it will just tear out of the drywall.

Do what it takes to screw it to a stud. I'm a big one for deep 4x4 boxes since they also are well built and do not flex and twist like plastic boxes do. Don't use the multi-gang metal boxes that assemble in sections, those are flimsy. Just cut a 4x4 hole and use a plain 4x4 box with some holes strategically drilled in the sides, and then deck screws through the holes into the stud. I like Torx deck screws and a little 90 degree ratchet screwdriver. Torx is great for that.

 

[FrodoOne]

While the duct should not get so hot that it affects/damages the insulation of the cable, it appears that it is a relatively long length of duct - which as not been "cut to length" - and is compressed to about its minimum length (!)

If you are at all concerned, the easiest thing to do would be to
extend the duct,
move it upwards (and support it in that position - somehow)
so that it forms a wider/longer "loop" around the Socket Outlet,
with a void in the centre
so that the cable does not touch the duct.

 

[Jim Port]

I wouldn't worry about the cord touching the duct, but would rework the duct to be a more direct path. The loop is restricting the airflow. Duct should be as short and straight as possible.

 

[Frank Lavorngia]

The outlet is fine just the way it is. You may want to utilize a more flexible metallic duct.

 

[Carpet]

I wouldn't worry about the cord touching the duct, but would rework the duct to be a more direct path. The loop is restricting the airflow. Duct should be as short and straight as possible.

I was thinking of making the duct inlet in the wall instead of the floor, but that wall is over 2x10 support beams. There will be a loop no matter what due to where the rigid duct transition is.

Should I use a telescoping duct, and use a 90 degree elbow so it goes straight down like Everbilt 28 in. to 45 in. Adjustable Space Saver Aluminum Dryer Vent Duct UD48HD - The Home Depot

 

[GrayHair]

If the duct goes through the floor, no the device will not work. It does not change directions.