OMG...we had the same kind of bees! I think the exterminator said they were hornets. It was awful. This was quite a long time ago. We lived in a different house then and had a wood stove. We never used it. We started noticing bees in the house every now and then. At first we just thought a bee flew in. Then there were more and more. It was freaky and scary! We finally figured out that they were coming from the wood stove. The bees had made a nest down in it. There were tons!!!!! You could put your ear up to the pipe and just hear all the buzzing going on in there. The exterminator took care of it and then removed the nest and he said it was the largest nest he had ever seen. It was huge and quite fascinating to see. You would think that they would have had to be in there for some time to have a nest that big. I wish I would have taken a picture of it. If I remember right the guy took it home with him to show people.

I would have it looked at real quick.

Robin