SIMON LEACH - Raku kiln part 2

www.simonleachceramics.com......part 2 here of this raku kiln i am trying to make . KEEP PRACTICING !!!! click for a potter on the ads ...appreciated . SL

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[ClayThrower]

Will that hardware cloth be strong enough to support itself, especially once it gets hot? A cylinder on end is very strong, even if the walls are weak, but tip it over and it will collapse rather easily. You may consider a reinforcing framework of some kind. Maybe a T shaped bit angle iron on each end, the horizontal part as the base.

[HarshawJ]

A couple of comments:

1) you are going to have to figure out a way for the shelves not to crush the Koalwool or the crushed areas will bleed heat badly.

2) Assuming you solves the above, you will need to have something to bounce the heat up into the upper chamber or the flame will bounce back toward the burner.

3) The exhaust port should have something to angle the flame up and away from the LP, burner and hose.

Otherwise it should work if it can hold the heat.

[billygotgrove]

I'm not sure if it works with kilns, especially if there are pots in the way, but foundry furnaces use the burner on a tangent. It make the flame swirl around several times before it leaves.

[gozoart]

Thanks Simon, finished my kiln following your instructions and we had our first Raku event with it! :)

Hermine

[gozoart]

I am absolutely new to that whole raku firing, but I like your video -so I am giving it a try! Just started to build the kiln. Since I am not so much into Pottery, but more into making sculptures - I am unsure if I shouldn't make a second lead with a higher top. Anyway thanks for all your advices

Hermi

[voxin2]

I pondered some physics. With this design concept I tested the wind tunnel effects based on your placement of input gas and exhaust port. What i found was temperature variances. specifically the far end of the chamber will get up to 20% hotter than the input exhaust end. the theory is that at the point where the flame turns back on itself its thermal concentration doubles as it returns to the input exhaust end. I know nothing of the effects of 20% hotter areas. Does this have any affect on pots

[voxin2]

Simon, I love the videos, I am getting ready to return to my first love raku. I want to build my kiln and have been looking at ideas. You seem spot on in your concept. My question is what are your thoughts about a design where the kiln is 30 inches high and 4 feet in diameter. In other words low and extra wide? One shelf but lots of flat area and plenty of hight. Thank you for all the informative videos.

[momsspot]

Simon if that idea works I will try it. Was thinking of lining a small metal drum and lieing it on its side and putting a hinged door on it. Winter is a great time to think....lol

[Alyzabeth01]

beer and raku...makes me think a keg would make a fine kiln...lol

[kroraven]

Very interesting! I have an old cast iron heater I'm hoping to turn into a raku kiln this summer. Was thinking of using fire brick to line it like it used to be, just haven't figured out if I will need 2 burners or one (trial & error I guess;-) Got a few months before then...but I think your idea looks great!;-)Looking forward to the out come;-) Take care ~ Karen

[love2bestowe]

Very cool Simon! I would love to make Raku pottery.