Fog Machine Chillers — An Ultimate Guide

Fog machine chillers are devices used to cool down the hot fog produced by fog machines, resulting in a denser and longer-lasting fog effect. These chillers are designed to enhance the performance of fog machines by cooling the fog before it is released into the environment.

By passing the fog through a chamber filled with ice or by using frozen water bottles, the temperature of the fog is lowered, causing it to stay closer to the ground and creating a thick, low-lying fog effect.

Fog machine chillers are widely used in various applications such as stage productions, haunted houses, special events, and live performances to create an atmospheric and visually appealing ambiance.

fog machine chillers an ultimate guide

How Does Fog Machine Chillers Work

When fog is produced by a fog machine, it is initially hot and tends to rise upwards. To create a chilling effect and make the fog stay low to the ground, fog machine chillers are used. These chillers consist of a container filled with ice, into which the fog is pumped.

As the fog enters the container at the top, it encounters the cold ice and sinks down, cooling the fog in the process. This cold fog then emerges from the bottom of the container, staying close to the ground.

By utilizing the principle that cold air sinks, fog machine chillers effectively create a dense, low-lying fog effect that adds ambiance and atmosphere to various events and performances.

How to Make a DIY Fog Chiller

Creating a DIY fog chiller is a quick and simple project that can enhance the effect of your fog machine. Here we will provide step-by-step instructions on how to make your own fog chiller using easily accessible materials and tools.


  • Plastic storage bin or container with a lid
  • Chicken wire or screen
  • Paint
  • Silicone or glue
  • Screws and washers
  • PVC pipe (2″ diameter or any size)
  • Drain plug (optional)
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Tools Used:

  • Drill
  • Screwdriver
  • Scissors
  • Saw (hacksaw, jig saw, bandsaw, etc.)
  • Tape measure
  • Black marker
  • Hot glue gun

Step 1: The Container and Plumbing

Start by selecting a plastic storage bin or similar container with a lid. Drill a circular hole at the bottom of each end, matching the diameter of the PVC pipe you will use. Alternatively, you can carefully cut the hole with a razor blade. Create pilot holes roughly halfway up the container and secure screws and washers on each hole from the outside using silicone or glue for an airtight seal. Optionally, add a drain plug near the bottom for easy ice melt disposal.

Step 2: Assembling the Plumbing

Slide a piece of PVC pipe through one of the holes, attach a 90-degree adapter, and connect the second piece of pipe. Cut the pipe at a mark just below the container’s top, using a saw suitable for cutting plastic. Use small half-inch rings with slits as clamps to hold the pipes together. Dab hot glue to secure the connections, ensuring they stay airtight.

Step 3: Incorporating Chicken Wire

Cut a piece of chicken wire larger than the container’s top. Bend and shape it into a “bowl” as you push it into the container. Lay a second piece of chicken wire over the first, providing added strength and preventing ice from falling through the holes. Create a small hole for the PVC pipe. Hook the chicken wire onto the screws from step one, which allows for easy removal if needed.

Step 4: Finishing Touches

Apply foam or cloth around the container’s top edge using hot glue to improve the chiller’s airtightness. Spray paint the entire setup with black paint for a sleek appearance. Customize and decorate further to suit your event or Halloween haunt.

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Step 5: Test and Enjoy

Perform a leak test by running fog through the chiller without ice to identify and seal any leaks. Once confirmed leak-free, add ice to the container and witness the remarkable results. Despite its simplicity, this DIY fog chiller delivers impressive performance and takes only around two hours to complete.

By following these straightforward steps, you can create your own DIY fog chiller, elevating the ambiance of your events or spooky gatherings. Share your experiences and outcomes in the comments below, and let us know how your DIY fog chiller turned out!

Are Fog Chillers Safe

Low-lying fog, like most fog machines, is completely safe to use as long as you use proper materials and equipment. Use high quality fog juice that has been manufactured with safe, non-toxic ingredients.

Additionally, be careful that the low-lying fog doesn’t obstruct any objects that may cause participants to trip or fall. Don’t put it near any low ledges or objects that may cause people to trip. And definitely don’t put it near any stairs! As long as you exercise common sense, low-lying fog is completely safe for anyone involved.

Best Uses for Low Lying Fog

If we’ve convinced you of the benefits of a fog chiller, then you might be wondering how to get the best use out of your machine. In this section, we’re checking out the top uses for a fog chiller. We’ll start with the most obvious:

1. Halloween

The top use for a fog chiller is as a Halloween prop. Fog chillers cascade the ground with a mysterious, spooky fog, creating the perfect environment for a Halloween haunt. No matter your decorations, and whether you are preparing for a Halloween display or a Halloween party, any festive October occasion can benefit from a fog chiller.

Fog Machine Chillers — An Ultimate Guide- The Ultimate Budget Fog Chiller

2. Dance Floor

Fog chillers are great for the dance floor. Fog covers the ground in a mysterious and whimsical layer of fog. It almost feels like dancing on a cloud. Light up the room for an elegant appeal, or dim the lights and pump up the beats for a big party. Fog chillers are versatile, and can create an effect to match any gathering.

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3. Special Effects

Fog chillers are great for special effects. A low-lying fog layer can add a special touch for any photographer or videographer. It can add ambiance, or even replicate real fog, smoke, or fire. Fog has been used by SFX artists for decades, and it doesn’t show any signs of slowing down any time soon.

4. Theatrical Performances

Fog is heavily employed in theatrical performance, especially low-lying fog. Low lying fog is great for performances, because it creates a noticeable fog layer, without impeding the view of the performers or the set design. You get a fog effect without distracting from the actual performance.

This is also the reason that low-lying for is also used to amplify a musical performance. Rock bands have relied on fog for many years to give themselves more stage presence, and create more excitement at their shows.


Now that you know exactly what a fog chiller is, how it works, and how to get your hands on one, all that’s left is for you to take our advice and roll with it! Whether you buy one or make one yourself, you won’t regret it. Fog machines are some of the best decorative accessories out there and chillers help you make the most of their dream-like, gorgeous effects.