bloody hell - guess that explains why you set your print volume at 141 rather than 200. That's a massive fan setup !
I'll stick to a lighterweight and possibly less effective solution. Though it was blowing a fair bit of air through yesterday. :-)

And 250 height ?
Even with the hotbed, I've got a clean 265. Gives me 5mm for the nozzle to lift off once finished.

Have you tried printing any text yet ?
interested to see if it comes out the right way round :-)