Wood stove impossible to maintain adequate burn temp

[bbacharach]

This has been great information from everyone. Thanks for sharing. I'll certainly be taking it under advisement.

 

[VintageGal]

The single wall inside the larger chimney is still air cooled. That causes excessive temperature drop. Chimney pipe has an insulation wrap around the inner flue that is needed to maintain the correct temperature. The constant wetting of inner pipe from condensing rusts steel pipe away quickly requiring stainless.

Good explanation, thank you.