When introducing a new queen to an especially strong hive, Pull a frame or two of emerging brood and a frame of honey out of the brood chamber and replace them with empty comb or foundation. Remove the old queen. Place the double-screen board on top of the chamber Place another box containing the emerging brood, honey, and the caged queen on top. Open one of the back entrances so the newly emerged bees can come and go. After a few days, release the queen in the upper box. Newly emerging bees are more accepting of a new queen than the foraging bees. After a few days, close the back entrance and open the front two. The bees will slowly start to mix. After a few more days remove the board completely. For combining two hives Place the double-screen board between a queenright and a queenless colony before combining to allow them to adjust to the new scent. Open an entrance to the top box on the back. After a few days, close the back entrance and open the two front entrances to allow the bees to mingle. Later, remove the double-screen. The scent of the queen circulates throughout the boxes before the bees can come in contact. To over-winter a weak hive Place a double-screen board above the brood box of a strong hive and then put a weak hive above it. Open one of the entrances so the bees from the weak hive can come and go. This entrance should be on a different side than the entrance for the lower (stronger) hive. The weak hive gains the benefit of the warmth from the hive below. To move a hive in hot weather f your bees must be confined to the hive in hot weather, fasten the double-screen board on the top of the hive in place of a solid cover. Nails or screws can be used, but screws do less damage. Make sure all the toggle entrance are closed. Provides extra ventilation to bees. Above description from HoneyBeeSuite Additional Details ------------------------------ Product description: When introducing a new queen to an especially strong hive, Pull a frame or two of emerging brood and a frame of honey out of the brood chamber and replace them with empty comb or foundation. Remove the old queen. Place the double-screen board on top of the chamber Place another box containing the emerging brood, honey, and the caged queen on top. Open one of the back entrances so the newly emerged bees can come and go. After a few days, release the queen in the upper box. Newly emerging bees are more accepting of a new queen than the foraging bees. After a few days, close the back entrance and open the front two. The bees will slowly start to mix. After a few more days remove the board completely. For combining two hives Place the double-screen board between a queenright and a queenless colony before combining to allow them to adjust to the new scent. Open an entrance to the top box on the back. After a few days, close the back entrance and open the two front entrances to allow the bees to mingle. Later, remove the double-screen. The scent of the queen circulates throughout the boxes before the bees can come in contact. To over-winter a weak hive Place a double-screen board above the brood box of a strong hive and then put a weak hive above it. Open one of the entrances so the bees from the weak hive can come and go. This entrance should be on a different side than the entrance for the lower (stronger) hive. The weak hive gains the benefit of the warmth from the hive below. To move a hive in hot weather f your bees must be confined to the hive in hot weather, fasten the double-screen board on the top of the hive in place of a solid cover. Nails or screws can be used, but screws do less damage. Make sure all the toggle entrance are closed. Provides extra ventilation to bees. Above description from HoneyBeeSuite