Attaching double wall pipe to terracotta

[chicadee510]

Hi,

I would like to replace the single wall stove pipe to double wall pipe and I have all the pieces ready to order, but I do not know how to attach the double stove pipe to the terracotta coming throu the wall. It is a 6" diameter. Right now the single wide pipe slides into the terracotta pipe in the wall. But the 6" double is too large to go in. I called the stove pipe company and they said they did not have an adapter. Could someone help, please?

 

[thechimneysweep]

You can make a male-male connector out of a short length of single-wall stainless. Cut off the uncrimped end until you have about a 4" length, then crimp the cut end so you have crimps on both ends. Furnace cement it into your thimble with the factory crimp extending into the room. Your double-wall will plug right on.

 

[chicadee510]

Wow, thanks for the quick reply. How far into the terra cotta should the single wall go? Up to the chimney? If I am picturing it right only a inch or so needs to be on the outside in the room?

 

[thechimneysweep]

If your thimble is large enough to accomodate uncrimped stovepipe, you can forego some of the above steps. Cut the uncrimped end off as necessary to prevent intrustion into the flue, and furnace cement it in with about 2" of the crimped end protruding into the room.

 

[chicadee510]

Thanks again! I think I got it!

 

[Wood Heat Stoves]

might be best to use the approved part,
security dsp and simpson dvl both have masonry adapters listed

 

[chicadee51]

Thanks for the info. I just didn't know the terminology to search for the adapter. It was strange the company I bought the stove pipe from did not know the answer to this problem. I appreciate the links to the sites.