whats going on,when it rains fairly heavy i get puddles of water all around the floor near the stove,when not in use that is, just replaced my dutch master large cat, it was too rusted and rotted out to be fixed after nearly twenty years, i replaced it with a Hampton 300 stove non cat, i dont want the same thing to happen to this stove. i suspect a problem with the chimney cap.the flue pipe is a straight shot to the roof, any suggestions ??