Halloween Forum banner

1 - 12 of 12 Posts

·
Registered
Joined
·
37 Posts
Discussion Starter #1
Hi everyone, for those looking to use a fan to help spread the fog around, this is how I did it

Part 1: machine enclosure

I've tried using fans in different locations, but always had problems with them icing up, or getting slimy with fog condensation. The way to do it seems to be placing the fan upstream of all other parts. This way prevents exposure to cold temperatures and vapours. So, the first step is to build an air-tight enclosure for your fog machine. I used a plastic storage container from walmart, with abs plastic pipe for the intake and outlet. The lid didn't hold air, so I made a seal out of rubber tape. All the wiring has to go through a hole in the side, then sealed up with PL premium.
The fan is mounted inside the intake pipe. I used an old brushless DC fan, had to do some cutting to fit properly. Make sure it moves air the right direction first! At first I was worried about heat from the machine melting the enclosure, but its been 3 years and no problems. But be sure to keep the hot nozzle away from any plastic, this also allows the air to leave the box and mix with the fog.

machine enclosure 1.jpg

machine enclosure 2.jpg

machine enclosure 3.jpg

machine enclosure 4.jpg
 

·
Registered
Joined
·
37 Posts
Discussion Starter #2
Part 2: Chiller

You can use any type of chiller you want, as long as it's air tight. My chiller is the basic cooler with chicken wire and ice cubes. Adding dry ice is worth the extra cash if you have it.

Connect the outlet of the machine enclosure to the chiller, and make sure its sealed.

chiller 1.jpg

chiller 2.jpg
 

·
Registered
Joined
·
37 Posts
Discussion Starter #3
Part 3: Distribution Hose

I used collapsible plastic drainage pipe to go around the perimeter of the graveyard. Home depot carries it under the name "Mole Pipe". I'm using both perforated and solid types, you'll need a 3 way connector as well. The chiller outlet connects to the 3 way "Tee" and then a section of solid pipe on each end. (I don't need fog right against the front of the house, I want it out where it can be seen) Connect perforated pipe where you want the fog to start coming out, then weave the pipe in and out of your props along the perimeter of your yard, and connect the ends of the pipe to form a closed loop. The distance your fog travels down the pipe will depend on the machine's output, and air flow from the fan. My perforated section of the loop is about 50 feet, and the fog comes out quite evenly along the length. The wind will be changing direction, but fog will always be dragged across the yard.

distribution hose 1.jpg

distribution hose 2.jpg
 

·
Registered
Joined
·
33 Posts
Part 2: Chiller

You can use any type of chiller you want, as long as it's air tight. My chiller is the basic cooler with chicken wire and ice cubes. Adding dry ice is worth the extra cash if you have it.

Connect the outlet of the machine enclosure to the chiller, and make sure its sealed.

View attachment 499217

View attachment 499225

I like your chiller box design.... I might just have to "steal" it for one of my boxes this year. Packing that sucker full and forcing it through the ice should do the trick.

I agree on the fan forced, and especially with all the distribution hose, it's a MUST.
I took a slightly different approach and made a "carburetor" with a Y Drain pipe. Even with the fog on full blast, it never backs up. the fan keeps up.. (roughing things out last year)
20161118_141340.jpg 20161120_150112.jpg

Having the pipe get larger "downstream" (just prior to entering the chiller) allows for cooling and expansion.

This one has a removable tray to fill with ice. It works really well...BUT, for a long night of "foggin" I'm afraid the ice will melt away. I know some folks do frozen water bottles. I thought about putting some below the tray, but after seeing your design, I'm thinking I can make a 2nd "ice cage" below my top tray and in front of the exit.


I even purchased a cheap radiator and a small pump to maybe but in front of the exit pipe. $_58.jpg .

I figured I can pump the super cold water that is in the bottom of the chiller through the radiator just prior to it exiting the chiller. Maybe overkill, but HEY, that's what makes this stuff fun to build!
 

·
Registered
Joined
·
37 Posts
Discussion Starter #5
I originally tried the Y pipe "carburetor" but all 3 ports were the same size. Fog just poured out backwards against the fan, leading me to the idea of the machine enclosure. Seeing yours explains why my attempt didnt work Haha! While designing the enclosure I realized it would also protect everything from rain. You might want to make a cover to do the same thing.

I think youre on to something with that radiator. Theres a lot of cold water sitting at the bottom that the fog never comes in contact with, its just being wasted.
 

·
Registered
Joined
·
33 Posts
I originally tried the Y pipe "carburetor" but all 3 ports were the same size. Fog just poured out backwards against the fan, leading me to the idea of the machine enclosure. Seeing yours explains why my attempt didnt work Haha! While designing the enclosure I realized it would also protect everything from rain. You might want to make a cover to do the same thing.

I think youre on to something with that radiator. Theres a lot of cold water sitting at the bottom that the fog never comes in contact with, its just being wasted.
I'm doing a "dry-run" with the foggers today.

One of which will be in my crypt in the middle of the graveyard. I didn't plan too well (no surprise there... LOL) when building the crypt. The chiller is eating up more room than planned. Not sure if I can use one of my Y-carbs... I may be stealing your enclosure idea for the fogger and trying the radiator.
The best place for the radiator (space wise) would be at the exit. But I'm considering at the entrance to "prechill" the fog before it hits the ice. Hopefully this will make the ice last longer.

Sent from my SM-G930V using Tapatalk
 

·
Registered
Joined
·
33 Posts
Made a last minute chiller for a crypt in my yard. This is a smaller version than previous versions...

It can hold 5" of ice on the tray. I made the standpipe in the tray out if stucco wiring, rolled up to increase (hopefully) difusion of the fog into the ice. Coiled up more wiring and inserted into the standpipe to maybe achieve a radiator effect.

The crypt has holes in the long sides as well as the lid is gapped 2". So, I cut 4 - 2" holes in the chiller to distribute the fog throughout the crypt with the chiller in the center. Fingers crossed...


Sent from my SM-G930V using Tapatalk
 

·
Registered
Joined
·
37 Posts
Discussion Starter #8
How did your fog turn out this year? That crypt looks amazing! I might do something similar later on to protect/hide my amplifier and sub.
 

·
Registered
Joined
·
37 Posts
Discussion Starter #10
Go anywhere that builds computers or sells parts for them, tell them what youre looking for. Each fan has an airflow rating in CFM (cubic feet per minute). You want this number to be as high as possible. Make sure you measure the inside diameter of the pipe first.
 

·
Registered
Joined
·
209 Posts
I wonder how well something like this might work: search amazon for VIVOSUN 4 Inch 195 CFM Inline Duct Ventilation Fan Vent Blower for Grow Tent
 

·
Registered
Joined
·
33 Posts
Mega-Chill

Ok...After a couple of years of using my fog chillers (previous posts)... they work, BUT, the problem is with the ice. It does not last long and it clumps up (thus not being effective).

I have considered a large, trash can Vortex style, but location for a large item in the yard and storage kinda kills it for me.

So I believe I am going to embark upon a new en devour, I mentioned earlier in an earlier post about using an ice water cooled radiator.
I think I am going to make a multiple radiator system for the fog to pass through. I have seen a video on YouTube where someone did this (https://www.youtube.com/watch?v=RLa6K71WSsM), but I am going to take a slightly different approach.

I am considering using a couple of the Coleman Party Stacker coolers for this, as long as the internal dimensions accept my design. Pictured are 2 identical sized coolers. They make them same width/length, but shorter in height. https://www.coleman.com/search/?globalsearch=party+stacker&lang=default . I have a Coleman outlet nearby, I can usually get these for 1/2 price the retail.
Layer 1.jpg

OR instead of using preexisting coolers and trying to modify them, I will build a custom cooler box using 2" foam board and a wood frame surrounding it for strength.

Either way I go (store bough or homemade)
- It will be divided into 2 main chambers, an upper and lower. Both chambers will be same width and length, but not the same height, stacked on top of each other. Building 2 separate units allows me to store and maintenance them individually, if necessary.

- The lower chamber will hold ice WATER and a submersible pump. The upper chamber will be a series of transmission coolers being fed the ice water from the lower chamber.
20230013_imp_243008_pri_larg.jpg

- It will be a fan-forced system using my "snorkel" system of a fan on one part of a 4"drain tee and the fog machine blasting into the other.
20161120_150112.jpg tees-wyes-c4811hd4-64_1000.jpg

The theory will be that the ice water will last longer than just fog passing over the ice alone. As well as the surface area for chilling should be increased dramatically. I can get an entire evening without refilling the fog machine with fluid, but the ice is usually depleted in a hour or so...

Unlike the YouTube version where he used a standard cooler and a bunch of expanding foam. I plan on making "slots" or "grooves" for the radiators to fit into. This will let me disassemble for cleaning and/or modifying if necessary. Also, his had the hoses running outside the cooler, mine will be underneath, thus "self enclosed".

If I make my own stack able units, the entire inner surface of the upper and lower chambers will be coated with Flex-Seal (yes, that stuff REALLY works) to make it water/fog tight and add a bit of durability to the interior.

I don't have any drawings (yet), just a concept in my head.

I will definitely be posting pictures when I start building this thing.

Any thoughts/ideas from anyone before I proceed?
 
1 - 12 of 12 Posts
Top