This is the fog chiller that I made to cool the fog that comes out of my fogger. That way the fog stays low to the ground instead of rising and making the area hazy.
I started with a $14.00 cooler from Walmart, some 4" ducting, 2-90degree bends and a length of plastic dryer hose from Home Depot. After I tested it the first time I noticed some leakage from around the top so I added some weather strip around the top. The duct was cut into 7" sections and inserted into two 4" holes that I cut into the sides of the cooler. The holes are centered in the two sides. The duct pieces are also centered within the holes and sealed with silicone caulk inside and out. I also sealed the seam in the duct. The tape you see on the edges is just to protect anything from being cut on the sharp edges.
I then attached the dryer ducting to one side with duct tape (very aptly named). The other side I attached a 90degree bend, a small section of ductwork (make your own measurements to match your fogger), and then the other 90 degree bend with a 5" section of ductwork on it. All the seams are sealed with duct tape except one on the upper bend that allows me to swivel the ductwork around so I can open the top and also place the fogger in the middle of the cooler (more stable and keeps the top closed). I found that the fogger produces the best volume of fog when it is about 2" from the opening in the duct. This also allows the fog to combine with the outside air which is rather cool here around Halloween time.
I am in the process of building two upright section which I will load with ice. My goal is to force the fog through both walls of ice before leaving the cooler. Some pictures of the cooler in action will be coming next.