Coal, wood stove. Amish made.

I had a curve like yours then put in a capped "T" for chimney sweep ease.

Stoves get a coating on the chimney pipe in a month or two flue fire.

I am more interested in my new chair, built for huge giants as well as normal people. The first thing that happened was the cat wanted to use it as a scratch post.

Yours looks good.

Now as for limiting yourselves to 70kg lifts, that's the smart way to do it!