Need some help here.. can't get this thing lined up....

Using a second adjustable elbow into the first you can adjust it to any angle you want to make it line up perfectly.

I'm going to pick another one up and see what I can come up with. I still however need to leave room for the draft inducer; that I may not even need anymore.

I still think the T idea w/ clean-out would eliminate any down the road problems--and, let's face it IOF, you do have a constant showing with old Murphy's Law

Yeah, Murphy and I should be best friends. But he has a habit of screwing me. I'd like to find him so I can kick his ass. I did look at putting a "T" on it again but I'd have to cut so much off of it o get it to fit I don't think I'd ever get it to seal properly.

I sure wish you'd keep playing with the T idea--safely of course.

I'll keep messing around with it. Maybe I'll get lucky.

About that furnace cement...what temp. needs to be obtained to have it cured?

Seems that maybe high temp silicone caulking would of been sealed w/ a few hours air drying time.
That block-out plate @ outer perimeter will never be above 200*F, maybe even a lot less, me thinks.

Yeah, I dunno. I think it says 400º. Evidently I didn't think that far when applying it. But, then again

Back to my pipe issue, I threw another elbow on it and got it to line up much better. But it's gonna need a lot of silicone or furnace cement to seal it. Oh, well....such is keeping the house warm.