[Stoves] Heat / cook stove - proposed design

[Darren Hill]

On 25/01/2011 00:43, Crispin Pemberton-Pigott wrote:
>
> Dear Darren
>
> You will have a fire in the hopper if you put air in at that point. 
> Wa-ay too much gas will be created. Avoid this by blocking the air 
> entry hole and opening one under the grate, just below the upper right 
> end. The area of the hole should be about 30 x 120mm.
>

The primary air hole should be 30x120mm?  With a valve so its adjustable?

>
> Lastly, constrain the entrance into the combustion area (where the 
> secondary air enters) to about 1/3 of the area of the hopper. Keep it 
> square-ish, definitely not long and thin as is often seen in furnaces.
>

You mean the 'throat' from hopper (A) to combustion area (B).  Third of 
the hopper width would be about 7cm.  7x7 then?


> Put the secondary air entrances where it starts to expand (because 
> there is additional draft there).
>
you mean straight away after the 'throat'?

> Light at the grate with only a little fuel, then as appropriate. Maybe 
> put the window lower it you really need to see the flames. Perhaps 
> better on the side of the combustion area to satisfy that urge, but it 
> will cool the combustion zone a bit.
>
Yes I was thinking of having a window in the door into the combustion area.
>
>
Best

Darren
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