I bought one of these at local pet store:
Stuck it to vertical frame rail on TAZ4 up above filament reel just under the horizontal frame piece.
It’s currently reading a little over 90 F inside my new printer enclosure.
Printing another funnel piece. Hopefully the delamination/cracking issues will be minimized substantially. Pics will follow.
I also increased the infill by 10% to see if that helps.