MYOG canister stove Ti foil windscreen

> 1) How much space would you leave between the windscreen wall and the sides of the
> pot? I'm thinking about 1/4 in.?
I usually recommend a bit more than that – about 15 – 20 mm.

2) How high up the pot would you have the windscreen go?
I usually recommend about 1/2 way up. Less is not very effective against wind.

Cheers

Thanks Roger, always a pleasure to have your stove expertise. I agree about half way up the pot height, but is 15-20mm really needed around the pot? Seems like a lot of space – wouldn't tightening this up just a bit keep more heat near the pot? There'll be enough air from below with the slits in the bottom for the burner head and pot supports and a few holes punched if necessary.

I'm wondering if this thickness of Ti foil will: 1) hold shape (once unfolded the bottom remaining flat and the teeth sides remaining straight vertical) 2) not be damaged/warped by the burner flame.

I'll post a pic of the shape with a cardboard model.

The precise air space measurement that you need is equal to the diameter of your index finger.

Titanium foil holding shape might depend on the thickness of it, and the alloy.

–B.G.–

Actually, the pot distance for stoves will vary a bit depending on how high a setting you have. 1/4" is fine with a low setting, and, about a half inch for higher settings (maybe a bit more.) half way or slightly more is good as Roger says.

No, the ti will not likely deform. Ti is highly heat resistant.

> Seems like a lot of space – wouldn't tightening this up just a bit keep more heat
> near the pot?
It might, but think what else might happen then. The air flow around the stove and the flame might start to stall a bit – and UP goes the CO level very fast.
In reality, I don't think shrinking the gap will get you any noticeable increase in efficiency.

Anyhow, what happens in practice is that the gap is NEVER uniform. Ti foil flops around. And I always leave a full opening on the downwind side of an inch or two anyhow. Easy access to the control valve.

Bob's precise measurement for the gap of one finger is a good rule of thumb.
(Pun – sorry!)

Cheers