Windproof - Heat efficient cooking pot

wow thats unreal i had thought of the very same idea…though not as well executed. Please make this, it’s genius!!!

sounds good, the simple solutions tend to happen like this. Alot of people over think problems and come out with something complicated like you mention above. i know nothing about cooking out doors but i wonder if heating the air underneath in a confined base area would create some sort of lift and turn over your pot? if you have tried this and it does not then as long as no one else is already doing the same thing you should look into taking it forward.i think it sounds like a really good product.

Thats a cool idea.  Have you thought about possibly making it a two piece construction?  Two cylinders, one slightly larger and with no base so you can telescopically extend the flame cover when in use and then slide it up to save on space.  Would need to secure it, perhaps with a thread or a key system similar to bayonet type lightbulbs…

How about making the lower part a slightly larger diameter so the hot air can flow up between the two layers like a chimney? Pros: better airflow and larger surface area. Cons: slightly more weight and bulk.

The problem I see is that it would take up a bit more space than necessary. If it were a 2 piece it could be stacked more compactly.

To do this I’d make the windshield part as a snug fitting cup,  that the pot sits in, it would look very similar to the Snow Peak Mini Solo at this point. Cut the bottom of the cup out so the heat from the cooker can get through to the base of the pan.

In use you would take the pot out of the now bottomless cup, turn the cup upside down and sit the pot in it (you’d need a slight lip, perhaps 10mm down to sit the pot in the inverted cup)

It’d look exactly the same as you’ve drawn, but it’s stackable.

To get further in this comp, I think you’d need to get some details of improved boil times in real use environment.

I have a strong suspicion that you’ll seriously impair the gas flow around the burner, since the combustion gases have nowhere to go; hot air rises into the enclosed space.  The result is likely to be CO poisoning…

This is why all the previous windbreaks (and there’s plenty of prior art, especially amongst the homebrew stove designs) have used a second layer around the burner and pan; this encourages the chimney effect, and keeps the hot gases in contact with the side of the pan, further increasing the efficiency of the stove/windbreak/pan arrangement.

You might punch a lot of holes just below the pan/lower ring interface to allow combustion gases to escape.

You would need holes at the top of the burner section to allow emissions to escape. Like the jet boil. This makes hot gas channel throguh heat sinks maximising heating by conduction.

I would also be worried that in high wind flame may be drawn downwards and onto the top of the canister and flame adjuster!

With a nice plastic lid to clip on the bottom, the extra space could be used for useful storage rather than be wasted.  If the top compartment held a gas cannister and the bottom one took a small stove and some other gubbins then you’d have a really neat system.

Like other people here, I’d worry about ventilation around the flame.  I’m no physicist though…

Some great feedback, thanks.  I have oodles of motivation now to progress this design to the next stage.  Some working prototypes are needed next, mainly to check on air-flow and if there is any disruption to the intensity of the burner, and also to establish how much more eficient this system is over a traditional pot.
Jamie

if the lower section was a close wire mesh you should get a baffle for the wind whilst still allowing some airflow through.

Thats brillant I was just talking to my Dad the other day about this, we played around with some old pots and it works well. Good Luck

Look at how the bayonet lens cap fits onto a camera lens.
Copy it. Sleeves around the pot for storage, below it in use…
Problem 1 solved.
Then add ‘breather’ slots around the join, to let heat up around the pot.
Retain heat under the pot, windproof the burner, and as a handy by product, heat the pot sides.

I haven’t been selected to go through to the next stage unfortunately, but I’ve adapted an existing pot by adding a sliding ventilated skirt.  No more spilt dinners for me, much faster boiling times and loads of gas saved for plenty more brews!  Design brief fulfilled.

Try to buy a msr reactor.. same design

Fine Ian, but the MSR Reactor costs £100.00, and weighs 600g.  My design uses my existing stove (Primus Micron, 96g) and a butchered kettle base (50g), and my non-stick Hi-Gear pan (128g). Total cost to me was about £33.00, and the total weight is 274g.  Not bad for an afternoon’s tinkering I’m sure you’ll agree.

Jamie