Need some help with stove pipe.

[67440DartGT]

Hey everyone, I was wondering if someone can assist me with some issues I'm having with my stove pipe? Here is what I have going on.

I bought an Englander NCH-30. I have purchased some double wall Ventis stove pipe but nothing really seems to fit correctly. Currently I'm having two issues... The first is the stove pipe adapter does not fit in the wood stove. It does not fit the inside diameter nor does it slide all the way in...

Secondly I am using the adapter to go to my wall thimble and while it was a total pain to insert the sleeves in my opinion it's just going to leak smoke into the house??? I've included some photo's... Any help would be appreciated. Thanks, Colin

 

[Sodbuster]

Bump

 

[begreen]

@bholler ventis question at the front desk. Do you just make the crimp on the adapter more aggressive by recrimping it?

 

[Gibraltar IV]

FWIW, I know you are using Ventis and that is what you asked about, but if you decide to try something else- I used Selkirk DSP with the NCH-30 and it matched up perfectly.

 

[bholler]

Hey everyone, I was wondering if someone can assist me with some issues I'm having with my stove pipe? Here is what I have going on.

I bought an Englander NCH-30. I have purchased some double wall Ventis stove pipe but nothing really seems to fit correctly. Currently I'm having two issues... The first is the stove pipe adapter does not fit in the wood stove. It does not fit the inside diameter nor does it slide all the way in...

Secondly I am using the adapter to go to my wall thimble and while it was a total pain to insert the sleeves in my opinion it's just going to leak smoke into the house??? I've included some photo's... Any help would be appreciated. Thanks, Colin

What exactly is the problem? Is the stove top adapter to big to small? Does it just not drop down the whole way? Did you try just sliding the pipe on. What is the issue going onto the thimble? It looks ok but hard to tell.

 

[67440DartGT]

Thanks for the responses. Sorry I didn't respond sooner I have been really busy with work. I think my main issue was the "stove adapter". I used the Ventis one and it sat up high and basically was not snug at all. The adapter just wiggled around inside the stove collar. I ordered an adapter from Duratech also and while it sat down further in the collar it was still loose... I ended up sitting my telescoping double wall pipe right on the stove without an adapter and it seems to fit better.... I would have thought these things would fit snug but not the case on the NCH-30.

Do you guys see any issue with the telescoping pipe just sitting inside and around the collar of the stove? Thanks!

 

[begreen]

If it's a good snug fit it should be fine. Our DuraVent double-wall pipe connects directly to the flue collar too. To assist draft, have the horiz. section slope uphill to the thimble at about 1/4" per ft.

 

[67440DartGT]

I wouldn't call it "snug" it fits much better than the adapters and sits on top of the weld bead for the collar. Being double walled it doesn't really give me any way to secure it... I have not been impressed with the quality of the adapters made to fit the standard stove collar.....

 

[begreen]

You'll probably have to make your own attachment holes. To secure the pipe, drill out 3 clearance holes in the pipe for a #8 screw, each 120º apart. Then drill tap holes for the #8 sheet metal screw into the flue collar.

 

[67440DartGT]

You'll probably have to make your own attachment holes. To secure the pipe, drill out 3 clearance holes in the pipe for a #8 screw, each 120º apart. Then drill tap holes for the #8 sheet metal screw into the flue collar.

That's a good idea. My biggest concern was how the inner pipe was sitting on the inner weld of the stove collar. It was very uneven and made the pipe rock back and forth easily. Thanks for the tips I will see what I can figure out to make it more solid.

 

[begreen]

You don't want to screw it too tightly. Otherwise you will start puckering in the outer wall of the double-wall stove pipe. It is just to secure the connection. If you are concerned about clearing the weld, maybe crimp the inner liner of the stove pipe so that it clears the weld?

 

[67440DartGT]

You don't want to screw it too tightly. Otherwise you will start puckering in the outer wall of the double-wall stove pipe. It is just to secure the connection. If you are concerned about clearing the weld, maybe crimp the inner liner of the stove pipe so that it clears the weld?

Thanks! I think that would best if I could get the inner liner small enough of a diameter to snugly fit inside the weld I'd feel much better about that connection.

 

[begreen]

This is the tool for the job

 

[67440DartGT]

Perfect. My local Menards has those so maybe I will get it and give it a whirl. Thanks for your help!

 

[armanidog]

I have a 30 NCP.
In the manual on page 5, Section 2 it states you may need an adapter (AC 1677) which reduces the stove's top exhaust flue collar 6 inch inside diameter by one-eighth inch to accommodate pipe variation from different pipe manufacturers and maintain a good seal.
Luckily my pipe fit perfect and there were screw holes already drilled in the top flu collar. I used self drilling screws to go through the black metal stove pipe.

 

[blades]

IIRC the Selkirk was a bit loose on the id of the outside portion of the double wall vs the od of the flue collar on the stove. So either the adapter to increase the od of the stove's collar or some rope gasket material from the local store might get r done. Likely need some HI temp refractory cement to seal the inside flue pipe in the collar as well. ( not the silicon rubbery stuff stuff). I didn't have any problem with the Selkirk inside pipe fitting inside the stove collar, could have been a bit tighter I suppose. Hence the suggestion for the cement there-

 

[67440DartGT]

Got her fired up tonight

 

[begreen]

Did you end up crimping? How was the fit?

 

[67440DartGT]

Yup, just crimping the inside pipe made it snug. Left the windows open because the stove paint smoked a bit. Is the temperature of the stove pipe different with double wall pipe? I didn't do a massive fire right away and got 450 degrees on the stove top but the pipe was much cooler....

 

[begreen]

Good deal. Yes, double-wall stovepipe temperature is much cooler than single-wall. That's why it has 1/3d the clearance requirement.

 

[67440DartGT]

Thanks, where do you suggest placing the thermometer? Ss stated I was at about 450 on the stove top but maybe 200 on the pipe. What is a good temperature to run at the suggested location? Thanks!

 

[begreen]

Thanks, where do you suggest placing the thermometer? Ss stated I was at about 450 on the stove top but maybe 200 on the pipe. What is a good temperature to run at the suggested location? Thanks!

Double wall stove pipe needs a probe thermometer about 24" above the stove.