Help with oval to round connection

[Mrcole]

I have old old boy bellied stove with a 7 inch oval top hole , trying to find or make something that goes from 7 inch to 6 inch piping .. I cannot find piping anywhere and not sure how to make to keep integrity please any thoughts

 

[DAKSY]

Woodman’s Parts Plus has this one. Will that work? I’ve not, you may have contact a sheet metal shop & get one custom made..

 

[mellow]

Rockford will make custom ones if you can't find an exact fit: https://www.rockfordchimneysupply.c...ve-pipe-connector?_pos=4&_sid=b2ff59c52&_ss=r

 

[begreen]

Have you tried ovalizing the end of a piece of 6" round to see if it will fit?