For those looking for more specific information: Â I did a quick Google search of stove instructions and found the following:
- Old WhisperLite instructions (Ver. 1.1 ): Â Maximum 9″ diameter, and 8 lb weight
- WhisperLite Shakerjet: Â Maximum 9″ diameter
- WhisperLite International: Â Maximum 10″ diameter
- WhisperLite Universal: Â Maximum 10″ diameter, 6″ height, and 10 lb weight
- WindPro: Â Maximum 9″ diameter, 5″ height, and 8 lb weight
- WindPro II: Â Maximum 10″ diameter, 5″ height, and 8 lb weight
My 8 qt pot is from an old Scout pot set (like the ones Philmont uses) and is 10″ in diameter, 8″ high, and holds 16 lbs of water. Â The 6 qt is still too tall and heavy when full per the manufacturer’s specifications.
In both the WhisperLite and WindPro stoves the fuel tank is separated from the burner so reflected heat from a large pot bottom isn’t the primary danger, rather it is the assembly’s inherent instability. Â It seems to me that the stability of a cooking system is dependent upon 1) the weight and shape of the load (pot), 2) the geometry of the pot support arms, 3) the geometry of the feet, and 4) how firm and level the ground is underneath it. Â Unless you place the large pots used at Philmont precisely on the center of the stove and the stove itself is standing on a firm level surface, the whole thing is in danger of tipping over–as was the case in the accident described above.
In other posts, I read that crews were attempting to alleviate this danger by balancing the pot on rocks, stakes, or in the fire ring which is probably a good idea but time consuming and problematic as well. Â This aluminum box is simply an attempt to take the guess work out of creating a stable cooking system using Philmont’s cooking method.
I emailed MSR to get their input. Â I expected a “lawyerly” response with multiple reasons why I shouldn’t use it. Â I was pleasantly surprised to find that they didn’t see any problems with it and that it would also serve as a good windscreen.
We tested the pot stand during a shakedown trip last weekend and found that it worked quite well.  It was rock solid and the boys didn’t have to be quite so diligent in placing the pot in the exact center of the burner.  I was concerned that it would warp when hot but that didn’t appear to be an issue.  It didn’t seem to affect boiling time either.  The only thing we found is that the box muffles the sound of the burner with the pot on it so we found ourselves frequently checking to see if the stove was still lit.
Regarding your questions about the accident: Â The boy is no longer in Scouting because of this experience, so I don’t have access to him to get any further details. Â However, he did describe it fairly well when I first talked to him about it. Â He described a stove “just like [mine]” (he has only seen my WhisperLite) with a pot “just like the Troop’s” (6 or 8 qt). Â He was standing next to the counselor (undoubtedly after being told to stay away from the kitchen multiple times) who was boiling water for a pasta supper when the pot suddenly tipped over and spilled all over his legs causing full-thickness burns. Â An important point is that the pot was under the control of a counselor who presumably had cooked this way many times previously without incident. Â I don’t think that there were specific circumstances that were unique to this situation that led to the spill. Â If any pot moves too far away from the center of the burner it can tip over. Â With a large pot, it is difficult to assess whether or not the pot is centered. Â In addition, large pots are less forgiving of lateral movement compared to a smaller pot (in my experience). Â The large pot/small stove system is just inherently unstable.