Hughesie

Well-Known Member
Hi i have a question about using a fog or snow machine you see every year my street does a christmas light show and the costs of the lights is getting into the hundred and i thought i'd go all out a buy a fog or snow machine

what i want is low fog cascading down a stair case outside

unfortunetly the event is outdoors so their is wind

any ideas

awhughes

p.s i live in australia
so it would need to be able to be purchaced in aus

Mayhem

Senior Team Emeritus
Hi Hughesie89,

Could you either remove your avatar or resize it to 80pix wide. Currently, it throws the entire page out. If you need help to make it smaller. let me know.

Essentially, if you want smoke or fog to fall, it has to be cold.

There are two ways to do this and the most effective is with a low smoke generator (LSG) that uses liquid nitrogen to not only chill the smoke but it also bond with the glycol, making it heavier.

The other way is to buy a smoke machine that accepts the ice bucket attachments. This then blows the smoke through a chill box that is filled with regular ice.

I have not used the second method but I have used the first and it is pretty expensive and something that you would only look to hire.

Cheers,

koncept

Active Member
yes, pleae resize the avatar.

i have used the second method, it has turned out ok. you can build your own chiller module. basicaly all you need is a box that you can put ice in, then add a fan on the output side. a 12 in computer case fan or equivalent works great. then as the fog passes through it will cool and as you wanted roll down the steps. dry ice might not be a bad idea to use as well

Hughesie

Well-Known Member
Thanks Dry ice is too hard to deal with

jonhirsh

Active Member
the only other way to go thats reliable is nitrogen and that is allot of work and is more expensive then dry ice.

so i think its time to rethink your effect and think of ways to do it with out it being out doors so you can use an regular ice low fog machine

JH

Foxinabox10

Active Member
jonhirsh,

I'll have to disagree with your statement that the only reliable ways to do it is nitrogen and dry ice. The low lying ice foggers work great from the ones that I have dealth with.

jonhirsh

Active Member
mabey but not outdoors on steps where people will be walking and in and out plus the warm weather that they have in australia?

the ice machines need certain conditions to opearate to full efficiency,
a cool room and a more static area then dry ice and nitrogen are necessary. because the tend to coll the smoke down only a fraction of the nitrogyn and dry ice both of which are not going to work well but will work better then the regular ice machines

JH