Connecting Single-Wall Pipe to Thimble?

[kwmccrea]

Hello, I purchased a DuraVent 'Through the wall' kit, and just want to make sure I understand everything I need to install.

I want to use single wall pipe from the stove, so can I just run it up to my 90 degree elbow, and straight into the double wall pipe I will have coming through the thimble? Or do I need a connection piece between the single and double walled pipe or does it just slide in? The kit comes with a decorative collar too - does that go over something that I am missing? The attached photo is a kit that they sell, but I don't understand what the other pieces included in it are.

Thanks in advance

 

[begreen]

This kit is just DVL stove pipe. Double wall stove pipe (DVL) must only be used in the room. It is not supposed to pass through a wall.

Describe in detail what is existing and being connected to. Pictures are welcome.

 

[kwmccrea]

Yeah sorry I think adding that photo was confusing. I don't really have any photos because I haven't done any installation yet, just trying to figure out what I need to buy.

I have this kit:

https://www.rona.ca/en/product/duravent-6-in-double-wall-starter-kit-for-air-outlets-through-the-wall-installations-6dpc2-wsk-72395001

I will be buying Type A double wall pipe to go through the thimble, and up the outside. My only question is what I need in terms of piping from the Stove to the double wall pipe in the the thimble (I would like to use single wall pipe from the stove) - just not sure what connects them at the thimble... Is there an adapter I need or does the single wall pipe just slide into the double?

 

[stoveliker]

I'd use double wall pipe inside. Better performance, cleaner pipes (especially horizontal ones). Unless you have an old old stove without even a baffle,. leading to much heat sent up the flue that one might want to get into the room

 

[kwmccrea]

Ok makes sense. It's a new stove - https://ookpiktinywoodstoves.com/auk-stove

I think the thought was that the piping would be cheaper and give off more heat into the room. But you think it's significantly better to just go double wall from the stove? We bought an adapter to go 4" to 6" cause the stove is small.

 

[stoveliker]

They even say keeping the pipe warmer is better (3rd paragraph of the Installation section).

The story be is small and your gases will already go slow because of the 4" to 6" conversion. That expansion and slower speed will cool them down before they reach the chimney cap.
Surely double wall stovepipe is better (and insulated class A outside). It's more expensive but better, and with less deposits safer too

 

[kwmccrea]

Alternatively would it make more sense to just stick with 4" piping the whole way and get a 4" through the wall kit instead?

 

[stoveliker]

That would be my choice, but the manual says you can go 5 or 6".
I don't know what's smartest there. Generally I would follow the size of the flue collar on the stove.

 

[kwmccrea]

Ok thanks so much. Last question...if I went with 6" double wall piping inside, do I still need an adapter to connect to the the Type A pipe at the thimble? Thanks

 

[stoveliker]

I don't know. I'd let @begreen shine his light before you proceed.

 

[begreen]

DuraPlus2 is not sold in the US. I am not familiar with it and whether the flue extension works with DVL or not. Call their support line and let us know what they say.

https://duraventretail.com/wp-content/uploads/2021/07/PIDPC2_Install-Instructions_08-2020.pdf

 

[kwmccrea]

So basically, you need to purchase an adapter called 'DuraVent 6DVL-ADC', that connects either double or single walled pipe to class A chimney. Surprisingly hard to find info about this, but their customer service is really great.

 

[begreen]

This is the same adapter for DuraTech celing support. Did they say how to secure it?

 

[CanFireman]

If using DuraPlus Canada - 2 (DPC-2) sold in Canada (different from DuraPlus sold in US), no chimney adapter is needed. Ceiling support and wall thimbles provided with this chimney have built-in flue extension. Single-wall or double-wall pipe will fit.