Stimpy,
Just thinking....If you could have the QF bottle already wrapped with a unwrapped toe warmer (100 degrees is the avg temp. for these kind, since a 130 degree warmer would be too much heat in a boot) inside of another container that is air tight, then when called upon, open a valve that will allow air into the container to activate the carbon in the warmer. How to put an unwrapped warmer around the bottle without activating it first would be the problem. Oxygen is the catylst in the air that activates these. If you could build an oxygen-free chamber to open and wrap a warmer around QF bottle in and put it inside the airtight container with a valve, this might work imho.
I've seen guys use CO2 like dry ice, and "pour" the CO2 into a container, forcing out the O2 and filling the container with only CO2(CO2 is heavier than air)
Or go the other way and fill "up" a container with Helium (lighter than air), forcing out the O2.

You might consider a warmer that has a higher degree rating since this would allow your QF to heat up faster. Practice to see how long it takes your QF to reach desired temp. Carbon warmers take about 15 minutes to reach their temps.
Hope this helps.
shluppy Reviewed by shluppy on . reduced noise heating pads Any one know of a way to reduce the noise given off unwrapping the heating pads? I am soon to be subject of randoms at a new killer job and I'm planning on QFing them with a full time carry around arrangement like I did at the job before the current one. My plan is to stay clean untill they have their first random and then after I have the routine down, develop my plan. Previously I had made a device that had four 9 volts bundled to give 18 v at approx 300ma lighting some 24v halogen bulbs, the Rating: 5