Weird stove pipe adapter

OK I spend most my time on here in the boiler forum but a very good friend and I went to look at a wood stove for his "cabin" off of CL. The stove needs some cleanup and stuff that he's not too worried about but has a strange adapter that comes out the top to connect the stove pipe to. Its rectangular in shape 3.5 inches wide by 14 inches long theni goes to an 8 inch flue. Sorry no pics he didn't buy the stove because I've never seen one and neither has he. It looks like a floor register vent duct adapter but made out of heavy gauge black stove pipe. Also no real info on the stove I couldn't find a manufacturer name on it anywhere. Thanks all. Any help appreciated in advance.

What is your concern? From the size of the adapter, the stove needs an 8" flue.

Sorry should have proof read ...... the "odd" adapter it rusted / burned out. Where can I find one? I've looked on line and called locally. Have any of you seen an adapter like that.

Any half decent sheetmetal shop should be able to make one.

That's kinda what we were thinking also but didn't know for sure.

Yes its rectangular squared corners!! I am somewhat familiar with the ovals. I be never seen one like this but'm no expert by no means...lol. thank-you for you all's help.

Perfect thanks! I'm getting this thing figured out now

I think your talking about a transition duct. You can buy them at servicesales.



http://www.servicesales.com/silent-flame-transition-duct-9s31214-p-119.html

Yes that is the piece!

Holy shnikies yeah that is more than they are asking for the stove . Clean up and the cost of that piece plus the other installation costs are turning us off on that stove. Hey thanks alot to all that helped! !!

http://www.stovepartsunlimited.com/pricing/2011 Stove Manufacturers Web.pdf

Stove parts unlimited has it for $137. As others have said you could probably have a sheet metal shop make one out of stainless steel for you for cheaper.

You can make one pretty easily. This one cost me about $40