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Fog machines12/29/2023 So in order to keep the submerged atomizer from overheating you will have either run it for very short periods of time or add frozen ice packs or even just frozen water ice to keep the water temperature (and the atomizer) cool. The atomizer is using about 300W of power to atomize the water into fog and a large portion of that will go into the water as heat. If you want you can plug the atomizer power supply and fan power supply into a remote controlled switch. You should now have fog pouring out of the duct! Air movement is needed to get the fog expanding and billowing. Any fog moving up toward the lip of the bucket just evaporates before it goes over it. The fog will not overflow the bucket, it just settles into the bottom of the bucket. ![]() You can watch it work and fill the bucket partly with fog. No consumables but water and electricity! These high output atomizers are not cheap (~$200) but dump out tons of fog, low lying fog, without any carbon dioxide gas. You can get high capacity pond foggers that will produce large amounts of fog (using >2 liters of water an hour). Many years ago I saw the fog potential of ultrasonic humidifiers and 'plumbed' the output of one of them via a hose into a jack-o-lantern to have fog creeping out of its mouth.įast forward to today. Ultrasonic humidifiers use this method to produce the visible mist being blown out of them. ![]() The surface of the water breaks up into fine droplets fog. This is where a piezoelectric disk is electrically pulsed to vibrate at ultrasonic frequencies with a shallow layer of water over it. Here is the new fog method - Ultrasonic Atomization. There are tons of Insturctables how to build one of these fog chillers.ģ. 'Fog Machine' fog tends to disperse all around you as if in a London Fog, so if you want it to hang near the ground you have to chill it. I eventually purchased a Rosco unit and have since purchased consumer 'fog machines' of various sizes at big box retailers on clearance after Halloween so that now I have 3 (or more, not really sure how many I have -). He had a professional Rosco unit that was really built like a tank and pumped out tons of smoke. My commercial photographer friend, Kelly, introduced me to this type of 'fog' machine. These are used at concerts to make the beams of light/lasers show up, and traditional low lying fog too. ![]() I like to think of these as smoke machines more than fog machines. Heated 'Fog Machines' that heat glycol-based or glycerin-based 'Fog Juice' to spray out a plume of white smoke/fog. I once had a small room filled with dry ice fog and it became apparent by the coughing and faster breathing that there was too much carbon dioxide in the room - Exit NOW if you find yourself in such circumstances!Ģ. I've built a couple of contraptions to make using dry ice fog easier.Ī safety note - Dry Ice is solid (frozen) Carbon Dioxide and in addition to being extremely cold (-109.3☏ / -78.5☌), causing instant cold 'burns' on contact (use insulated gloves), it can present a suffocation hazard because the carbon dioxide gas evaporating off of dry ice will displace the normal air around you and deprive you of oxygen. You could pull your car right into their warehouse and purchase however much dry ice you wanted without leaving your car. When I lived in San Jose, California there was a company called Able Carbonic near the airport that had a Dry Ice Drive Through around Halloween - it was great!. It was great, but you had to go get the dry ice and be very careful handling it. Dry Ice was my first introduction to fog - Dry Ice dropped into hot water provided LOTS of dense low-lying fog. Everybody loves fog, Theatrical Fog that is - Especially at Halloween, and there are many ways to make it:ġ.
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