New stove piping adapter

[trailrnr]

Hello,

I’m in the process of upgrading/replacing my stove. I installed a jotul F3CB 11 years ago at my place in the UP. I’ve wanted upgrade ( bigger firebox) for awhile now. I’ve purchased a PE super 27 and assumed it would be a direct swap out regarding the piping ( wrong)

Using 6” duravent with telescoping section. The issue is collar that fit into F3CB won’t fit into super 27. I’ve read that I need to purchase adapter. When I view adapter online it seems it’s not going to couple up with duravent. Did I install telescoping section backwards 11 years ago??

Here are a couple pictures . Thanks in advance if anyone can offer advice.

Joe

 

[begreen]

If this is Duravent DVL, no adapter is needed. the inner crimped liner should insert inside the flue collar and the outer skin of the double-wall should fit outside the collar rim.

 

[trailrnr]

It is duravent. The inner liner not crimped as you can see in (bottom of telescoping pipe). The other small connector sitting on top of super 27 connected between telescoping pipe and fit into top of old F3CB.

Begreen- thanks for reply!

 

[begreen]

Right. The DVL adapter is crimped on the stove end. The crimped stove end will be too small and sloppy for the Super. There is no need for it.

 

[trailrnr]

Unfortunately the inside pipe on the DVL telescoping pipe is larger than the opening on the super stove collar.

 

[trailrnr]

I just off the phone with someone at Duravent; he said the telescoping section should couple directly to flue collar; I told him I couldn’t get it to go in ( can’t really see the inside pipe); He also mentioned it’s ok to slit the inside pipe with metal cutter to reduce the diameter a pinch🤔

 

[stoveliker]

I'd use a crimping tool instead of cutting it.

 

[trailrnr]

Hmmm….never used one before. I’ll check it out. One question though; would one crimp all the way around or just enough for figment?

Thanks

Joe

 

[stoveliker]

I'd crimp all around so it stays circular.
Start with a little bit. Test. See if you need to make the wiggles bigger (to make the diameter smaller) and work your way up to a good fit.

 

[trailrnr]

Ok sounds good thanks👍

 

[begreen]

That's surprising, in the past DVL usually slips right into the PE flue collar. But I haven't worked with more recent DVL and nor their newest stoves.

Yes, you control the depth of the crimp by how hard you squeeze. Do it in stages, with a light crimp first. Test, and if it still doesn't fit, recrimp a little more.

 

[trailrnr]

I ordered the 6DVL yesterday. I’ll at least try it and see how ‘loose’ it actually is. If it’s actually 5.625. That would be .187 (3/16”) on each side.😳

Also ordered crimper tonight so I’ll have a couple options.

I appreciate the replies 👍👏

 

[trailrnr]

As noted earlier I have a DVL-ad and hand crimper on order; so I’ll have two options 1) crimp existing pipe for direct fit ( no idea how well the hand crimper works ) 2) use DVL-ad adapter and deal with the gap.

Having done a web search it appears the fitment issue is common and people either use a gasket or possibly high temp silicone or stove cement.

Any further opinions regarding this?

Thanks

Joe

 

[stoveliker]

Stove cement will crack and fall out within a few fires
I would not use silicone. It'll get messy.

A gasket is a possibility but there's always a risk you push it out of position when you slide the pipe in leading to leaks.
Best is to make the metal fit as it's supposed to imo.

 

[begreen]

I haven't used any cement on the PE stove I've installed with DVL. The fit is snug with the bottom of the DVL about 3/8" above the stove top.

 

[Turbo89]

If you use those hand crimps try them on a cheap piece of round duct first (can buy at Home Depot for <$10).

I find pushing the pliers all the way in, and putting the pliers fingers in the groove I just created as you work around the diameter kept my duct most round when I was working on my heating ducts.

 

[trailrnr]

I get it ‘a practice piece’ I’ll only be able insert the crimpers about 5/8” before they hit the brace between inside/outside walls.

I can see where the crimpers would work fine on the thinner metal like Home Depot or Menards sell. It will be interesting if they have sufficient power for duravent pipe.

Thanks for reply!

 

[begreen]

Try without crimping first.

And yes, the inner liner of DVL is stainless. It will take more effort to crimp than regular steel.

 

[stoveliker]

Using the crimper gets you two things in one: a tool and this:

 

[trailrnr]

Try without crimping first.

And yes, the inner liner of DVL is stainless. It will take more effort to crimp than regular steel.

I’ve even disconnected the upper side telescoping pipe hoping I’d have more wiggle room being able to manipulate the entire pipe (no luck)😥

 

[Turbo89]

I get it ‘a practice piece’ I’ll only be able insert the crimpers about 5/8” before they hit the brace between inside/outside walls.

I can see where the crimpers would work fine on the thinner metal like Home Depot or Menards sell. It will be interesting if they have sufficient power for duravent pipe.

Thanks for reply!

Having a 5/8” hard stop will be good, it’ll help you with consistency / keeping it round. Best of luck and happy burning.

 

[stoveliker]

Having a 5/8” hard stop will be good, it’ll help you with consistency / keeping it round. Best of luck and happy burning.

Maybe, but it's far easier to crimp (bend) if the piece is a bit longer.