B Vent Connection

[Train]

This is a through the wall exhaust for a radiant tube heater. I'm not quit sure about the b vent. The C to B adaptor should slide into the longer piece, and does, but the inner pipe slides over the inner pipe on the long piece, not into. With the direction of the exhaust, this seems wrong to me.

 

[The Cobbler]

it looks to me like that aluminum piece is where the heater hooks to, it is not meant to connect to the b vent
the other end connects to the B
and the pc of b vent looks like part of an adjustable pipe. usually b vent twist locks together

 

[Train]

There's a diagram on the Ecco website the shows it the way I've got it. The way I see it anyway. But even if I turn the short piece, the overlap is the same. These are the only two pieces they gave me when I bought the heater. The long piece goes through the wall thimble, to the outside. The piece between it and the heater can be single wall. The high wind cap twist locks to the end.

 

[duneslider]

are you sure the bigger one doesn't flip 180 and connect that way?

 

[readhead]

It’s been a while but as I recall the long piece can be cut to length if required. Did the instructions indicate that these pieces should be installed at a slight slope? B vent, like any flue pipe has the inner pipe lapped the “wrong way” for condensate and the outer pipe lapped the “right way “ for weather. I would presume that the pipe is supposed to be installed at a slight up slope through the wall so any condensation flows back to the heater and not out toward the cap causing staining on the wall.

 

[allinon72]

The smaller piece is a draft hood, no? If so it’s meant to go the other way.

 

[Train]

If either piece is flipped, they won't go together at all. Readhead, correct, the long piece is what they're calling an adjustable piece. The instructions only show the single wall pipe at a down sloping angle. I'm wondering if the young fella at the supplier gave me the wrong piece, and it should have been b vent with a male and female end so the pieces could lock together. Twice before on other things I've bought there, he's screwed up. And also misquoted me on poly pipe to the tune of an extra 800 dollars.

 

[Jackfre]

I think that is Ameri-vent pipe. It is about my least favorite of the B-vent lines. I represented Dura-vent and Selkirk for about 20 yrs. Both are superior in the lock mechanism. Actually all lines “lock” systems are good. It is the “unlock” part of AV that I hate. Go to the pipe manuf web-site and look at their lay-outs and part Id. The long piece is an adjustable length.

 

[readhead]

So they want you to slope to the outside which makes sense since the cap is away from the wall. You have the right stuff.

 

[purediesel]

I thought B-vent was only for vertical installations?? My Reznor would only allow it in a vertical position. This was true for Reznor and Mr. Heater that I looked at.

 

[Train]

According to the manual, B vent is to be used through the wall. Because of the forced venting it's allowed, is my understanding.

 

[purediesel]

Gotcha, makes sense if the flue gasses don't have that much time to cool.