Well, the week of winter has come to Northeast Texas and I'm a bit concerned. Our 3055 has a draft of cold air that is coming under the fridge area, through the vents. I assume that the vents are for the refrigerator. The warm air that is generated is being drawn into the vents when the heater is blowing and that seems a bit counterproductive. Since we haven't made it through the 9 months of Summer, yet, I wonder what will happen to the A/C air? I looked at the back side of the fridge, but it "seems" to be sealed and foamed very well. There is a gap under the fridge that could be foamed with minimal expansive foam. Has anybody had that experience? I'm also foaming the area just under the toilet. There is a small gap there that you can see light through. I know this because I left the light on in the basement (accidentally) and when I opened the bathroom door I could see the light. It's not more than a 6" strip, but that's 6" inches of Texas winter coming in!