Re: Three mediums for brood chamber
This is the configuration I use (all mediums, three are brood chamber, everything above that is honey). I don't use an excluder, never had an issue with brood above the 3rd medium. From what I have observed, as the colony shrinks in the fall, they will fill the 3rd medium with honey along with the outer frames in the 2nd medium, plenty of honey for winter. Started out with deeps for brood and mediums for honey, but have been gradually taking the deeps out of service. In spring, I can reverse the 2nd and 3rd medium if needed.
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