> "We have secured the best results by placing a 1/8 inch thick strip of wood between the crown board and the brood chamber, over the lugs of the frames in the front and back, allowing the moisture to escape by the slight opening thus formed on both sides of the brood chamber. At this point, the moisture is carried away without exposing the cluster to a direct draught."

That suggest cold way to me - " over the lugs of the frames in the front and back".

That is confirmed here 8'40" into Part 3.

https://www.youtube.com/watch?v=GQdbOb4bg0A#t=532.9060177

Best wishes

Peter 
52°14'44.44"N, 1°50'35"W

             ***********************************************
The BEE-L mailing list is powered by L-Soft's renowned
LISTSERV(R) list management software.  For more information, go to:
http://www.lsoft.com/LISTSERV-powered.html