Fog Chiller: Gotta keep that fog cold!

Do you have a fog machine, but when you use it people think your house is on fire? If so, then you may need a fog chiller. This is a device that passes hot fog through a cooling system. When you can get the fog coming from your unit to be colder than the outside air, the fog will settle nicely on the ground. Our course, wind, humidty and ambient temperature all play a role, so the same set-up could produce completely different results on different days based on these variables.

There are a ton of different designs and opinions on the best way to get your fog cold. A good website that addresses fog and fog chillers is Got Fog. Here is an article from their site to use as a starting point to build your own chiller.

"Filling the night air with menacing fog, which your trick-or-treaters must venture through and wonder what could be lurking within it, a fog machine is an absolute must for a truly creepy Halloween haunt or party. But there are times when you might want the fog to hung the ground rather than disperse through out the air. A perfect example would be for a graveyard scene in your front yard. Instead of filling the air, you want the fog to slowly drift over the ground, around tombstones and over burial mounds, or maybe you'd like it to flow out from under your porch or even over your roof.

Unfortunately, the very nature of how these machines produce fog makes this difficult, as the fog fluid is heated to generate fog which comes out hot and rises in the air. To discourage the fog from rising it has to be cooled down before it is released into the air. The general idea is to build a device that the hot fog enters and is cooled down as it passes through. A Fog Chiller. We designed our Fog Chiller to be easy to build, relatively inexpensive and be a completely self-contained unit that could be moved around as needed."

The rest of the article is here.