Instructions for a woodgas stove.
Stumbled across a paper on down draught gassifier and have been tinkering around with them for a while, I expect this has been covered before but what the hey
here goes.
I used 2 tins to make this, the stove is a large grapefruit tin from tesco but you can also get same size tin with new potatoes in it just get what your going to eat 
And the burner which goes inside the stove was a small sweetcorn tin. Total cost less than £1.
1) The outer stove:-
place the sweetcorn tin on top of grapefruit tin & mark around the circumference & cut out using a Stanley knife be careful of sharp edges at this point please! then mark and drill 11 6mm holes at 1.5 cm spaces around the base of grapefruit tin.
2) The burner:-
Drill 8 6mm holes at equal spaces just below the opening of the sweetcorn can about 8mm down, these will be the burner holes. Drill 8 6mm holes around the base again spaced equally these where about a 1cm up, this will be where the gas is drawn out from and up the side to be ignited. Turn over tin and drill a load of holes in the base, I managed 29, this will be the grate and also give a good supply of oxygen for the stove.
3) Assembly of stove:-
If all has gone to plan slide the burner into the outer stove tin.
4)
Place small pieces of wood into the burner and light. I used BBQ lighter fluid for this test but have also light my smaller stove by using tinder and kindling on top of it so you dont need to take accelerant with you to light this stove 
As soon as it charcoals on the top, the woodgas will start to be drawn down inside the tin and up the inner chamber out to the burner holes. Stick you pot on top and away you go cooking or boiling 
This stove needs so little fuel to cook on and I have discovered if the wood is all about the same length and placed vertically down into the burner it will burn for a lot longer. This stove is really efficient and clean. Hardly any soot or smoke and very little ash left at the end.
As mentioned earlier I have made a smaller one using a dog food tin and the burner from a household can of polish more holes for the burner but smaller ones 16 of 2.3mm but still all other holes 6mm.
I have almost perfect combustion with this one as you can see from the nearly blue flames produced. I take this one with me and I have made a small alcohol stove that fits inside the burner as a second stove, I only need to take 120ml of alcohol which is nothing really.
Hope this has been useful to you.
P.S can post or email my alcohol stove if you want 
P.P.S Don't think the pictures have attached with text, any suggestions on how to paste photos in would be appreciated
Stumbled across a paper on down draught gassifier and have been tinkering around with them for a while, I expect this has been covered before but what the hey
here goes.I used 2 tins to make this, the stove is a large grapefruit tin from tesco but you can also get same size tin with new potatoes in it just get what your going to eat 
And the burner which goes inside the stove was a small sweetcorn tin. Total cost less than £1.
1) The outer stove:-
place the sweetcorn tin on top of grapefruit tin & mark around the circumference & cut out using a Stanley knife be careful of sharp edges at this point please! then mark and drill 11 6mm holes at 1.5 cm spaces around the base of grapefruit tin.
2) The burner:-
Drill 8 6mm holes at equal spaces just below the opening of the sweetcorn can about 8mm down, these will be the burner holes. Drill 8 6mm holes around the base again spaced equally these where about a 1cm up, this will be where the gas is drawn out from and up the side to be ignited. Turn over tin and drill a load of holes in the base, I managed 29, this will be the grate and also give a good supply of oxygen for the stove.
3) Assembly of stove:-
If all has gone to plan slide the burner into the outer stove tin.
4)
Place small pieces of wood into the burner and light. I used BBQ lighter fluid for this test but have also light my smaller stove by using tinder and kindling on top of it so you dont need to take accelerant with you to light this stove 
As soon as it charcoals on the top, the woodgas will start to be drawn down inside the tin and up the inner chamber out to the burner holes. Stick you pot on top and away you go cooking or boiling 
This stove needs so little fuel to cook on and I have discovered if the wood is all about the same length and placed vertically down into the burner it will burn for a lot longer. This stove is really efficient and clean. Hardly any soot or smoke and very little ash left at the end.
As mentioned earlier I have made a smaller one using a dog food tin and the burner from a household can of polish more holes for the burner but smaller ones 16 of 2.3mm but still all other holes 6mm.
I have almost perfect combustion with this one as you can see from the nearly blue flames produced. I take this one with me and I have made a small alcohol stove that fits inside the burner as a second stove, I only need to take 120ml of alcohol which is nothing really.
Hope this has been useful to you.
P.S can post or email my alcohol stove if you want 
P.P.S Don't think the pictures have attached with text, any suggestions on how to paste photos in would be appreciated
