Here's the calculation behind the 288,000 minutes in ~200 days from the beginning of October to the middle of April:
200 days x 24 hours/day x 60 minutes/hour = 288,000 minutes

Your math was right John,  for some reason my phone slit that number and it looked like 28  8000  My apologies.

I tried digging a bit on humidity exchange last night but no clear numbers.   I am however quite sure that there is no way my average hives move 10 liters of air per minute during the winter  I could see 1  maybe 2,  but 10  no way.  That would be a noticeable draft in and out of the entrance

There is some info on the absobitive rate of the wood but not sure how paint applies.

I have seen hives many many times with droplets in them.  I am wondering if that may be the real key,  droplet formation and then the droplets running out of the hive over the winter?


Charles

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