I performed a test today with my IOLITE, suggested to me by IOLITE's tech support:
1. I filled the herb chamber to capacity with Sage, as Sage's vapor point is almost identical to our favorite spice. I was careful not to over pack it and made sure there was "breathable" space.
2. I purged ALL remaining butane out of the butane nozzle located on the IOLITE by using the small end of the metal tool supplied with the IOLITE. I purged the nozzle by applying downward pressure on the valve. I repeated this process for approximately 3 minutes, at which time I could no longer hear any kind of gas or air being released.
3. I then filled the IOLITE using Vector x5 refined butane until I got just the slightest over spill of butane coming out of the unit. The slight over spill is to ensure the IOLITE's fuel tank is at maximum capacity. I wiped off residual over spill on the unit.
At 12:15 PM
4. After I waited approx 3 or so minutes after the refill, I switched the IOLITE to the on position, waited three seconds and clicked the piezo buton. I could see blue pilot light, but did not turn orange. I then attempted a series of clicks, spacing it out a few seconds. After aprox 4 or 5 clicks, the blue turned to orange and the unit adjusted to normal operating temperature.
5. I let the IOLITE sit on its side. The IOLITE would keep its constant temperature for approx 30-35 seconds, at which time the thermostat system would re-engage for approx 4 seconds.
6. This cycle persisted for a total duration of just under 2 hours, at which time the heating element was no longer able to heat up as all remaining butane was spent. The experiment started at 12:15 PM and ended at 2:10 PM.
Conclusions:
- The IOLITE representative's claim that the unit will run for a continuous 2 hours on one full tank of butane is pretty much accurate however there is a caveat:
This experiment in my opinion doesn't test the IOLITE in Normal Operating Conditions as there was no inhalation of the Sage (or our favorite spice). It is my belief that when you inhale the product, the chamber's temperature will reduce quicker, activating the thermostat more frequently and therefore using more fuel. It's almost like a comparison of a car manufacturer claiming that their vehicle gets an estimated 40mpg, only to find out that they arrived at that figure by calculating the mpg average when the vehicle is on cruise control, I.E. not normal operating conditions. Yes, the vehicle might be able to get 40mpg, but if you live in downtown L.A. that figure doesn't apply so much.
I still maintain that under normal operating conditions on one full tank of highly refined butane, the IOLITE is able to provide use for approx 4 full bowls of spice. Given this performance, I am pleased with it enough, especially if using it primarily for on the go occasions.
Hopefully this answers some questions people might have regarding consumption efficiency of the butane system. I hope this experiment was helpful and informative.