Enlargement: in spring put a box at the bottom with drawn comb.
With this method, old wax automatically rises in the hive until the moment when remelting arrives. This satisfies the demands of hygiene. The colour of the comb is the deciding factor.
Expanding the brood to its maximum.
Three boxes of the stable-climate hive are equal to one 12-frame Dadant brood box. At times, one obtains five boxes of brood. Then one enlarges again, either at the bottom, or in the middle taking into account the climate and local weather, but never on top before the main flow.
Enlarging by putting a box in the middle is done for a very strong colony during a nectar flow.
Adding a new box on the top when the main flow starts: at this time there is no longer a risk of cooling the stabilised climate of the colony. A second box is soon necessary underneath the new top box and a little while later it is necessary to harvest the top box so it can be replaced after extraction.
Stable-Climate Hive – 'Nature's Method':
written by Jean-François Dardenne on the basis of articles by Roger Delon, and translated by David Heaf.