DVL parts help ?

[Brian VT]

I'll have a 6" DVL elbow down to stove.
From the center of the horizontal run to the top of the stove outlet is 43"(+,-).
The 90 says it's 9" from the horizontal center to bottom edge. The stove adapter says it takes up 4".
This leaves me with 30"(+,-) vertical to fill.

I could get an adjustable 29"-48" or I could get an adjustable 4"-11" plus a fixed 24".

I don't know what the actual installed height of these will be and I haven't accounted for an "upslope" of the horizontal run.
If the 29" was barely short enough I wonder if it will make assembly/disassembly tough ?
Would you order the 29"-48" or the 4"-11" plus a fixed 24" ? Or...would you order all 3 and return the unused ?

 

[begreen]

I'd prolly get the 12-19" adjustable (#8687) and a fixed length 12" piece of DVL.

 

[Brian VT]

I'd prolly get the 12-19" adjustable (#8687) and a fixed length 12" piece of DVL.

That does sound even better, but the place I'm set to order from doesn't list a 12"-19".
They only list a 3"-5" and 4"-11"

 

[begreen]

Is this Simpson DVL pipe? I haven't found this listed in the Simpson catalog, but maybe I missed it. Where are you ordering from?

 

[Brian VT]

Is this Simpson DVL pipe? I haven't found this listed in the Simpson catalog, but maybe I missed it. Where are you ordering from?

Thanks for your quick responses.
http://www.fireplacedeals.com/Vent-Pipe-Double-Wall-6"-Double-Wall/c187_202_203/index.html?page=2

 

[begreen]

Same part (8687) as I described, but their description does not match Simpson's description. I haven't worked with this fitting and don't want to steer you wrong, but from what I read it sounds like the pipe should have a 7" adjustment range from 12" to 19", not 4" to 11". Otherwise, how would it collapse down to 4"?

 

[Brian VT]

LOL !
The store seems to have the impression that it collapses.
I can't tell who's right ? Your description stands up to logic better, imo.

 

[Brian VT]

The .pdf catalog I downloaded for DVL says "...6" pipe adds 2"-5" of length, 12" pipe adds 2"-10" of length, when used with rigid sections of pipe..."
Page 3 here: (broken link removed to http://www.duravent.com/pdf/catalogs/dvl.pdf)
The store says 4"-11". The .pdf says 2"-10". How the heck do you go from 2" to 10" ? LOL !
Your description works better for me but I'm still unsure what to order. lol
Assuming the store and this .pdf are correct, what would you order ? The 29"-46" or the #8687+24" rigid ?
I would think less joints is preferable but I'm unsure if the 29", when installed, will be short enough to allow some upward angle to the horizontal.
Also, which will be easier to disassemble ?
Sorry this has turned out to be a confusing p.i.t.a.. I'd just like to have my plan set before I start punching holes and ordering parts.
Thanks again for your attention.

 

[begreen]

Seems like the safest plan is to call Simpson tomorrow morning. If you're trying to make up 29" it seems like a 12" piece plus an adjustable 12 to 19" piece would be the best option. I think I have it right, but don't want to steer you wrong. Give Simpson a call.

 

[Brian VT]

Will do. I'll also ask if I really need to cut 12"x12" out of the (non-combustible) cinder blocks for the thimble.
Thanks for your time and patience. You've obviously dealt with 100s or 1000s of newbies here.

 

[begreen]

We're all newbies at one thing or another. Lots of folks have helped me too. That's what makes the world and this forum go round.

 

[Brian VT]

I've found these other (conflicting?) descriptions:

"6" DVL 12" adjustable slips over solid sections of the DVL double wall pipe providing a 3" to 10" extension."

"The shorter length allows adjustment from 3" - 5". The longer length gives you 4" - 11" of adjustment. Both pieces must have a minimum of 1" overlap with all connecting pipe."

I guess this is the route I'll take but I'll probably always wonder if the 29"-48" would have been a "cleaner" install. I just don't know how to determine which is better
without putting my hands on them.

 

[Brian VT]

I'm still trying to imagine how a pipe section can adjust from 2" to 10". Do you cut the bottom or does it slide over the rigid section ?



(broken image removed)

 

[begreen]

I think they're math challenged. Their picture does not jibe with the Simpson catalog picture, nor the description with says the 6" pipe can be adjusted 3".

 

[Eddie24361]

I have had the same problems you guys have had. I ordered the 12" piece thinking that it would collapse. It is a solid metal piece - there is no adjustment. It slips over a solid section to ADD length to it. You can not go from an elbow and then go 8 inches to the wall. It can never be less than 12" long. I ended up just using it as a solid 12" section and setting my stove out a couple of extra inches.

 

[gpcollen1]

The adjustable ones come with 2 pieces - at least that is how the longer one comes. I have not slid one over the other yet - i imagine that will take some doing or an extra set of hands for sure. With the small adjustable pieces - maybe they come with just one piece and one open end {that would mean the bottom end in that pic} so you can just slide it onto an existing/other piece of pipe??