temp of the air & flue gas coming off of a LL Pocono??

I am wondering about the temperature of the air coming off of a LL Pocono going to the hot air jacket which would go into my cold air return. Lets say it's running at full blast. Do any one here have an idea what that temperature might be?

My next question is I would power vent this stoker so how close can I have the vent piping to my basement ceiling and floor joists? If I wrap the pipe with (your suggestion) insulation would this be acceptable to have it very close almost touching. It appears in the LL website to be that close If I'm looking at the info on the power venter correctly.

Thank you for any and all help.

Joeski