Dry Ice

[Ynot]

You can bolt a ducting adaptor onto the outlet grill to pipe away the fog.

[gav8298]

cheers for all the advice people, seems dance teacher recently went to a show where everything was "kinda misty" on stage and so they've abandoned the idea of dry ice/low smoke for a mister which is fine by me!

In any case, the auditorium I deal with builds up enormous temperatures and the infrastructure/ventalation of the place renders it pretty difficult to deal with low smoke stuff. however, this I wouldn't have known without all the heads up so nice one! you've saved your own tax money with this!

[Wingwalker]

Take a look at Stagecraft's website. They have full details about Dry Ice on there. www.stagecraft.com

[gyro_gearloose]

Its worth bearing in mind the fact that foggers such as the Jem Glaciator need a fair bit of power. A Glaciator needs a 32Amp single phase power supply, and a local company has a monster fogger that needs 32amp three phase!

[J Pearce]

To clarify, the glaciator requires 16A single phase, the glaciatior XSTREAM requires a 32A single phase.

[soundiesam]

this is just my opinion my only concern would be the word school appeared in your query. dry ice can be dangerous and I have say that if I was doing a production in a school I would choose to use Co2 cooled smoke. I've used it on countless never really had any problems with heat depends and when I used it the space it flooded was about 8m x 9m which it covered quite nicely

[paulears]

Glaciators and the like are rather unpredictable. Depending on the ambient temperature they can be very OTT, or feeble. They hate pyro, as the filters clog quite quickly and this really impacts on output. They can dribble quite badly, and are quite noisy.

 

Dance can, saying all that above, look spectacular with controlled use - my dancers immersing themselves before lights up and emerging from the fog. In the past we've used kit with CO2 bottles and the trusty but wet peasupers. Storage is a pain, although many suppliers just bring you a replacement container at regular intervals. It pains me to have paid for lots of empty bags of nothing after the stuffs sublimed. Safety concerns are really just with pellets, buckets and gloves, normally controllable. My worry is with old fashioned peasoupers full of hot water - far iffier. Gas bottles always seem to leak because unions aren't done up enough, or too much and the gaskets get warped for the next cylinder. They always run out during the show, and changing a bottle mid show always sounds like a steam train arriving despite being bled off!

 

So - looks good, but however you do it, awkward and unpredictable!

[soundiesam]

They always run out during the show, and changing a bottle mid show always sounds like a steam train arriving despite being bled off!

 

 

ive never had this problem

[paulears]

That's useful - the gauges gets low, you've the big scene coming up soon - what's the secret to a quiet changeover?

[soundiesam]

turn it off leave it for a few seconds take it off never really had a long hiss

[paulears]

I think maybe we're talking about different things here. The new cylinders need purging first, but once connected and up to pressure make a fair bit of noise when you release the union. Ours were pretty good at retaining pressure. Pubs have the same problem when they change cylinders. You seem to have the choice of a moderate long hiss, or a shorter, louder one. Some systems run at 50psi-ish, but others are much, much higher.