Connecting Duravent stovepipe adapter

[GreenHillsT]

I found one or two threads that might have been speaking to a similar issue, but not totally clear and wanted to try and get some more certainty before doing anything.

I'm trying to understand the right way to connect a Duravent 6" stovepipe adapter with damper (picture from bottom that is supposed to face stove) to a Vermont Castings Aspen stove (pictured from above) to then connect into Duravent 6" double wall pipe.

The actual Duravent double wall pipe fits snug directly on the wood stove directly, if that's useful to know, and looks like could be secured with three screws. But the stovepipe adapter's crimped end seems too small to form a snug fit to the inside wall of the opening as there are those two pieces inside the stove's opening.

The adapter and stove are both 6", but neither instruction manual speaks to how to get the adapter snug, and there are two pieces inside the stove pictured below, that I can't tell if they are supposed to support the adapter's crimped end, or push the crimped ends in to, or to cut out the crimped ends to fit the whole thing further down and more snug. Is the space in between the double walls supposed to be drawing air from inside the stove or open to the room?

Not sure what I'm doing wrong if anyone has a thought! Thank you

 

[begreen]

It's a common issue with modern stoves. Their adapter is a sloppy fit on many new stoves. Write them and tell them.

Some solutions are to wrap the crimped end with flat stove gasket, try an pound out the crimp to widen it, or don't use the adapter. I chose the last option by pulling out the damper assembly and reinstalling it in a straight section of pipe and gave away the adapter section.

 

[GreenHillsT]

I appreciate the info @begreen. I will let them know. And so for a double wall pipe, is the outer wall of the pipe overlapping the stove, so the gap between the crimped part and the outer wall is all on the inside? So it would look like this? And then it sounds like I can use furnace cement to seal that if necessary? I may do what you did and just remove the damper and drill the required holes in the stovepipe directly because the pipes do fit nicely on the stove as is.

 

[kennyp2339]

I had to use a single wall double male to make the tight fit from stove collar to dvl adapter on my stove

 

[begreen]

I appreciate the info @begreen. I will let them know. And so for a double wall pipe, is the outer wall of the pipe overlapping the stove, so the gap between the crimped part and the outer wall is all on the inside? So it would look like this? And then it sounds like I can use furnace cement to seal that if necessary? I may do what you did and just remove the damper and drill the required holes in the stovepipe directly because the pipes do fit nicely on the stove as is.

View attachment 334221

It depends on the stove. If the inner crimped pipe fits snuggly into the flue collar, then nothing else needs to be done. If the inner pipe can't seal because of the outer pipe is snugging up too soon, then the outer pipe might need to be trimmed a little. Or, make an adapter out of a short piece of single-wall like kenny did.

 

[GreenHillsT]

OK gotcha sounds good, I just wanted to make sure I wasn't negating the benefit of the double wall with that air gap being basically open to the hot air from the stove, neither instruction manual got into that level of detail. But depending on exact height needed I may just remove the damper and put in the well fitting stove pipe. Thank you