Place them in a different building overnight with a light on above them. In 
the morning the bees should be out and you can put your honey into the hot 
room.

or

 The bees you are bringing in will bee old bees anyways and if there are to 
many of them you are removing your honey incorrectly. A simple device that 
attracts them in the hotroom and kills them is the most effective way to 
deal with your situation if you don't want your inside heat to escape.

or

As another very large beekeeper(many off you know who I am talking about) 
would do in FL. Take all your honey off without removing the bees. Take the 
honey back to the honeyhouse. Allow all the bees to fly out a be attracted 
to a certain area for containment. After they fly out take the honey to the 
hot room or extracting area. Now take those bees you accumulated inside and 
scoop them up with a shovel. Place 1 shovel full of bees into each empty 
hive body with frames, give them a feeder and a queen. Bam you got splits 
and your honey off with a few less steps. Oh, and suit up for doing it this 
way.

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