Help with this venting situation please

What is happening with this vent configuration. I have a vent coming through the wall from the laundry room down the wall on the furnace side then goes into the side of the furnace toward the rear. The wall vent from the laundry wall was passive. Has anyone seen this before? Comments/thoughts invited please. Is this perhaps the reason the furnace also has rusting at the interior (moisture coming from laundry room).

Carl:

The vent should usually go outside. It seems to be outside makeup air for the house (connected to the return so it only works when the furnace runs). I have no idea why they would take return air from the laundry room, seems silly.

If there is rusting inside the unit I'd recommend service. Is the clothes dryer vented to the exterior?

Yes, dryer vents to the exterior following a long winding 5 turn path....

Also, my thought was, you still have some moisture in the laundry closet from the washer. I was wondering if that might be enough to contribute to the rust. I know that rust can be caused by other issues, but just thinking that really isn't helping any and I had never seen anyone do that before. They have done some other creative venting of course...lol....they used rolls of tin, and literally rolled them into form for vent use and duct taped it to hold it together at an exhaust vent from a bathroom to the exterior.

Sounds wrong to me, including the other exhausts. I'd recommend they all be checked by a HVAC contractor. Taking air into the furnace from the laundry is just silly.

Thanks.

I agree and appreciate the input. Thanks Mike!

You can go with what Mike has suggested or else you can go with the expert advice by contacting heating service Bergen County NJ professionals. I would suggest you to consult them even if you have a small doubt in your mind. They can give perfect solution to overcome your venting problem as they have years of experience in this field. Hope this helps you.