Economical, free standing chiller units for smoke machines of all sizes....Output can be compared to systems costing many times as much, such as some CO2 low fog systems with operating costs for the chilling system of more than $10 per minute, or $600.00+ per hour on their high settings. The Vortex chilling systems can operate for as little as .3c per minute resulting in up to 20,000% savings a...