Hello,

I am a new homeowner so please forgive my lack of knowledge on the subject. When I heard that we had a newer high efficiency furnace in the home, I was excited as I know this could be a big expense otherwise. After having some people come over to check out the new digs, my father took exception the venting work coming from the furnace and leading out to the side of my exterior wall.

As you can see in the images, there are clearly 2 pipes coming out (I'm told 1 for gas venting and 1 for some kind of in-flow). As you follow the pipes up to the ceiling in my basement they connect just before they reach my exterior wall. My father says that these should be separate pipes otherwise gas could be venting into my in-flow. The logic makes sense to me, hence my posting this to confirm the concern.

I'm really hoping this is a non-issue, but as I said before, I am a new homeowner and my expertise on the subject is next to nothing.

Thanks for taking the time to read this and providing your input.

Mark

 

That IS an issue. Those pipes should remain separate and exit the building as two pipes.

Post the make and model of your furnace and I'll see if I can get some more info for you.

 

I think the pipe they joined into is indeed a 2 chamber vent allowing exhaust to flow out a center channel while pulling fresh intake air from slightly behind the discharge, but from the side chamber.

 

I think that tomf63 has the answer. I have not seen one before but just looked it up. Pretty slick. A picture of the pipe from the outside of the house would probably confirm the 2 chamber vent.

 

Thanks so much for the replies, guys.

PJ, as requested, my furnace is a Payne PG9UAA.

tomf63 and goldstar, I really hope you guys are right. I have attached some more pictures for you to have a look at.

Let me know if I can provide any other info that might help you help me.

Thanks again!

Mark

 

That's an IPEX Type BH Class IIA vent system where the exhaust temps are under 65c.
Below is a picture of the Concentric vent kit.



The link below is from the company that supplies it.
IPEX inc/Content/Products/Product.aspx?IsDownload=true&FileId=6362

So if your thru the wall fitting looks like the picture.... you are ok.

 

Thanks PJ! I feel MUCH better now.

Cheers,
Mark

 

Just an FYI: That type of vent is quite common around here. I have one as well as did my last house built in 1996.