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Old 01-26-2010, 06:03 PM   #1
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Furnace venting issue

Here is my problem...I have a 6 year old home that has a furnace that vents through the side wall of my garage. During the winter the steam freezes and builds up on the siding and creates a large ice patch that has discolored the siding. However, this is the least of my problems. I noticed that there was water stains on the inside base of my garage where the garage meets the foundation. I cut open around my vent on the insdie and there is a lot of moisture inside my wall. You can tell that my OSB walls have swelled from moisture build up. Now I am assuming that I need to remover my siding because of the integrity of my wall. What I want to know is there a venting sytem that I can use that will prevent this from happening again? I have PVC pipe vented out the side of my house connected into a basic dryer vent that has been caulked. I am assuming that this was completed incorrectly because I will have to replace both the iside wall and under the siding.

What do you think?


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Old 01-26-2010, 08:40 PM   #2
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I'd call a reputable HVAC company to check it out. Once the vent issue has been addressed you can fix the wall.


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Old 01-27-2010, 06:39 AM   #3
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The vent should not be covered. It should extend a foot past the wall unobstructed.
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Old 01-27-2010, 07:04 AM   #4
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Post pic of vent from both inside the garage and outside the garage.

Where does the furnace get its combustion air from?
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Old 01-27-2010, 07:11 AM   #5
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Make the peron that install it back out. You have enough to show it did not happen over night. It been happenn ever since it was put in right? They may have to raise it up from outside to make more slop back to furnace.
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