Thimble adapter help

[ianpmccarthy]

Hi y'all - I'm trying to connect DVL double wall pipe to this thimble, but it doesn't look like an thimble I've seen in person, or online. The DVL pipe I have fits over the inner ring, but it isn't snug at all. I also have the 6DVL-ADT adapter. Again, same thing - everything "fits", but nothing is snug. Am I missing something? Another piece, or do I just need to screw something in? Appreciate the help - thank you!

 

[begreen]

Do you know what brand thimble this is? How is it connecting to the chimney liner?

 

[ianpmccarthy]

This is inside. I'm not seeing any labels or manufacturer info on the thimble. I've reached out to the installers, but they haven't been the most helpful, ("its a thimble - what more do you want to know?")

 

[begreen]

That looks like a big gap inside there. I ask about the thimble because I'm trying to verify it is safe, providing the proper clearances. That will depend on the brand. As far as the connection goes, what is the is the inside diameter of the thimble?

@bholler, thoughts?

 

[bholler]

Yeah definitely doesn't look right . The thimble just looks like a piece of ventis chimney pipe

 

[ianpmccarthy]

6" ID.

So are we thinking this isn't a thimble at all? Is there any reason why the existing masonry there would have led them to install like this? I'm trying to get answers from the folks who installed it, (folks who do it for a living, by all accounts), but it take them 10 days to return a phone call and its getting cooooollllddd outside.

 

[kborndale]

Just because you do it for a living doesn't make you good at it. Lots of janky installers out there.

 

[begreen]

We don't know the details of installation but typically a stub of class A pipe is not used here. Instead, a proper insulated thimble is usually used. Even if class A was used, it is supposed to have a spacer thimble that maintains 2" clearances. Here it looks like brick was used. We have no idea how close the class A pipe is to combustibles. Also, inside of the pipe the joint is has a large gap at the crimped snout join. I'd prefer not to see that. It should at least be packed with some gasket rope if it remains.

I think Rockford might be selling Ventis under their Rockford brand. Check with them. If so, this is what is used to pass their class A through a wall and the adapter to stove pipe. The Ventis part number for their adapter is VA-UA06.

Wall Pass Thru Thimble for Rock-Vent Class A Insulated Chimney Pipe - Rockford Chimney

The Wall Pass Thru Thimble is used when Rock-Vent Class A chimney pipe passes through a combustible wall. Includes a 10" Finishing Cover.

www.rockfordchimneysupply.com

 

[ianpmccarthy]

We don't know the details of installation but typically a stub of class A pipe is not used here. Instead, a proper insulated thimble is usually used. Even if class A was used, it is supposed to have a spacer thimble that maintains 2" clearances. Here it looks like brick was used. We have no idea how close the class A pipe is to combustibles. Also, inside of the pipe the joint is has a large gap at the crimped snout join. I'd prefer not to see that. It should at least be packed with some gasket rope if it remains.

I think Rockford might be selling Ventis under their Rockford brand. Check with them. If so, this is what is used to pass their class A through a wall and the adapter to stove pipe. The Ventis part number for their adapter is VA-UA06.

Wall Pass Thru Thimble for Rock-Vent Class A Insulated Chimney Pipe - Rockford Chimney

The Wall Pass Thru Thimble is used when Rock-Vent Class A chimney pipe passes through a combustible wall. Includes a 10" Finishing Cover.

www.rockfordchimneysupply.com

Alright - a little update (and a new problem): the installer neglected to put the adapter on that class-a pipe (a Ventis 6" universal adapter). The issue now, is I have a bunch of Duravent DVL pipe, and things are fitting together. Is there an adapter, or some clever way to get this Ventis Adapter to connect to either the DVL adpater, or just a DVL pipe I already have?