Stove pipe horizontal qn

[jona]

Funny, i just called with a seller for stove pipe goodies and explained an issue and the situation when he explained to me that a horizontal excit was much better than a vertical. When i explained i was in a yurt he knew appearently some customers and was quite firm about this. I explained what i learned from this topic and the answer was that the draft in the chimney was much better as he took a vacuum cleaner as a example. I give value to his reply, but yours are field experts so that leading for me. I just wanted to post.

Also is 2x 45degree better dan 1x90 regarding draft.