I would like to convey my limited experience in the Northeastern U.S. with the Swedish polystyrene miller type feeder that Mr. Gustafson referred to in his email. We have used several for a season and a half, both on wooden and polystyrene hives. We first started two new packages in polystyrene hives with new, unwaxed Pierco Frames. , one with the Miller feeder and one with the two gallon pail feeder on the 21st of April. The bees took about twice as much feed from the miller feeder as they did from the pail feeder and started drawing the ninth and tenth frame about ten days earlier. I doubt that the results would have been as different had the bees been in wooden hives. The nights in late April and early May are almost all below freezing here and the cluster would be much tighter in a wooden hive, although as Mr. Gustafson indicates, the feeder serves as an insulated top. This fall we used the polystyrene feeders to add a second story of empty drawn comb to some one story hives in late October. The hives took down about 60 lbs. of high fructose corn syrup by December 1. The interesting thing about the feeders is that there were still bees feeding in the polystyrene feeder when the early morning temperature was down to 15f. Next Spring, we will see if the same thing is true in early Spring. Personally, the idea of having a feeder that doubles as a winter top insulation device really appeals to me. No more hauling pails back and forth and washing them. We did however remove the Plexiglas cover on the feeding area of the feeder before winter. We reasoned that although the polystyrene will let moisture pass, the moisture would take the path of least resistance through the hole under the Plexiglas feeding plate. It would then hit the Plexiglas and condense on the front of the top bars. Mr. Gustafson might want to comment on whether he does this or not to his feeders before winter. We sold about 500 of these feeders in the U.S. and would appreciate feedback from other users. They are certainly more expensive than pail feeders, but if handled carefully, they should never leak because they are one-piece molded and should pay for themselves in a year or two in decreased labor costs and better wintering and thus stronger hives and more honey production Incidentally, the package hive that we used it on in April produced a whole medium more than the one fed with the pail feeder. For Sale, 500 dirty two gallon pail feeders, cheap! We will not be importing the Swedish feeder this year. It is designed to fit the polystyrene hive, and although it could still be used on the wooden hives with no problem, the wooden telescope covers had to sit on top rather then over the feeder. The new BEEMAX feeder will be out in early March and will be sized for the wooden hives, although, of course, it can still be used on polystyrene hives. Happy New Year Bob Stevens