Box with exhausted pipe and electrical wires in the basment!

Hi all First thank you all for all your help and support for my previous questions. People in this group are amazing, thanks once again.
I have a dryer in the basement which I have not used till now. I have found that it does not have a vent! see the pic below please
http://oi44.tinypic.com/ftisgh.jpg
Then I have found a box in the basement which lead to an exhausted pipe to the wall and the to the outside of the house, but electrical wires goes inside the box as well. Please see pic below
http://oi41.tinypic.com/t8ayhe.jpg
Another pic
http://oi43.tinypic.com/2jcsrbb.jpg
and from the outside the house, I see this box
http://oi39.tinypic.com/rc9dtg.jpg
What this box is for? why It has an exhausted pipe? I thought that pipe has been misplace and it suppose to go to the dryer!
Any help would be very much appreciate it.
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On 6/20/2013 12:10 PM, leza wang wrote:

wall and the to the outside of the house, but electrical wires goes inside the box as well. Please see pic below

Why is it so hard to figure out? Where does the box wire come from? A switch, your breaker panel, etc? Does the outside vent have a flap over the opening or a screen over the opening? Is there a name plate on the big inside box? Open the box and see what is inside!
Where does the other end of the vent pipe go? I see it disappear into the some of some big thing. What is that.
Do some detective work and you will soon know what all this is for.
Paul
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leza wang wrote:

I don't know what it is either.
The metal box that the exhaust/vent pipe comes out of looks like it is mounted on a wall. Is there something on the other side of that wall -- a crawl space, a room, or something else?
I wonder if it could be some kind of radon system where it vents basement air or crawl space air out to the outside of the house. Or, if the box is connected to some kind of powder room or bath room that has no windows, maybe it's a vent for that to the outside.
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On Thursday, June 20, 2013 3:10:32 PM UTC-4, leza wang wrote:

wall and the to the outside of the house, but electrical wires goes inside the box as well. Please see pic below

Maybe it's a power ventfor the dryer. Pull the dryer out and see if there is a hookup for a piece of flex dryer vent hose behind it.
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On Thu, 20 Jun 2013 13:32:33 -0700 (PDT), jamesgang

the wall and the to the outside of the house, but electrical wires goes inside the box as well. Please see pic below

Her first picture was looking down the back of the dryer. Nuthin there.
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On Thu, 20 Jun 2013 12:10:32 -0700 (PDT), leza wang

wall and the to the outside of the house, but electrical wires goes inside the box as well. Please see pic below

I can't tell where in relation to the dryer is the box with the pipe. ??
Your fourth picture looks like a dryer exhaust outlet from a basement, but normally the pipe comes straight from the dryer. Is there a second dryer pipe sized opening in the box? Any writing on the box, a label?
Does your house look like your neighbors' houses? If so, ask them if you can see their basements. If not, ask if they can come to yours and tell you what is going on.
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On 6/20/2013 3:10 PM, leza wang wrote:

wall and the to the outside of the house, but electrical wires goes inside the box as well. Please see pic below

It looks like a wall mounted exhaust fan. Is it a bathroom on the other side of that wall?
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the wall and the to the outside of the house, but electrical wires goes inside the box as well. Please see pic below

Yes it does, now that you mention it . Or maybe in the next room is a sauna, or a heated swimming pool
Maybe the dryer was never used? Or only used in the winter when it was allowed to put its exhaust into the basement? Maybe in the summer the previous owners dried their clothes on the line.
I have a white plastic box with a flapper valve that routes the drier air to a 4" hose or duct going out of the house, or to a screened exhaust vent into the basement. I use the second one if the house still needs heat or humidity.
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On Thursday, June 20, 2013 5:51:51 PM UTC-4, RBM wrote:

the wall and the to the outside of the house, but electrical wires goes inside the box as well. Please see pic below

thanks for the reply, no not bathroom but the dryer and washer there behind that half wall. the whole room is for the dryer, washer, furnace and hot tank water.
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On 6/20/2013 10:21 PM, leza wang wrote:

the wall and the to the outside of the house, but electrical wires goes inside the box as well. Please see pic below

that half wall. the whole room is for the dryer, washer, furnace and hot tank water. If it is an "inline fan" for the dryer vent, it should have a collar at the bottom of the box, that a 4" dryer hose would attach to. There would also need to be some type of mechanism to turn the fan on "automatically" when the dryer is on. It could be turned on by the air pressure from the dryer, itself.
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*As RBM stated, it looks like an exhaust fan. Can you show a picture of the other side of the wall?
You could probably just use that exhaust vent for the dryer. Disconnect the existing duct and reroute it to behind the dryer.
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On Friday, June 21, 2013 6:48:04 AM UTC-4, John G wrote:

I would not disconnect anything until it's understood what this really is and what it's doing. If it is an exhaust fan, somebody went to a lot of trouble to install it and it's apparently not serving the dryer. Some questions:
The outside pic of the vent, I assume that vent is located where the 4" pipe from the mystery box exits the house? Correct? What is on the other side of the wall where the box is?
From one pic, it looks like there is some white plastic, maybe PVC showing at the bottom of the mystery box? Can you take a pic of that?
Have you looked all over this mystery box for any kind of identifying label? Very unusual to not have a name on it, rating plate, something that has some info as to who made it and what it is
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snipped-for-privacy@optonline.net wrote:

I agree that more photos may help -- maybe one of the bottom of the box and one or two from the other side of the wall at the level where the box is to what is there. And, maybe a longer wider view horizontal shot showing the dryer and the wall behind it.
I am picturing that the box is on one wall and vents out to the outside from there, and the dryer is on the other side of the wall and maybe could/should connect to the box from that room through the wall.
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