wow you can read minds, Lunk! lol
Tonight I am going to Home Depot to see what my options are for exterior insulation around the PVC - i hadn't really considered insulating inside the PVC pipe as I didn't want to restrict the cool air return any further.
I did a "flame test" and found that I have a nice gentle breeze returning down the PVC - i'd hate to muck that up.
Any concerns with just going with an nice thick external insulation wrap around theh PVC?
I'll post some (smaller) finished pictures, too.
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