Suggestions on these 90s

[CabinLover]

So we have this going on. This wood stove has not been used so we are wondering if this needs to be changed out. Any thoughts. Please note: as the pipe goes through to wall to the outside, there is another 90 connecting to a pipe (drawn in red) that goes straight up. Outside pic taken at nights, so it isn't the best. We are worried about safety issues with draft and other things.

 

[ABMax24]

That's definitely not how I would have done it, I would have at least installed a 45 directly above the stove then into the 90, little less resistance this way.

 

[stoveliker]

On the other hand, if you try out the system (after having it inspected by a good sweep for safety issues), and you don't have issues with smoke in your cabin when you open the stove, then the total height of the flue may be enough to overcome the impedance of these ill-conceived elbows.

 

[begreen]

That's a long run for single-wall stovepipe. How much creosote accumulation is there when cleaning?

It looks like a 45º offset could come off the stovepipe, maybe 3' from the top and connect with another 45 at the wall thimble, or at least a single 90 there.

 

[xman23]

I wouldn't use it until, you sweep and inspect the chimney. You can't tell whats going on inside at all those 90's. I would take it apart and see. With all that height it might draft fine. Do regular inspections and cleanings until you get an understanding how much creosote builds up.
Just remember using unseasoned wood and smoldering fires will creosote the chimney very quickly.