Norman van der Sluys on sat 5 aug 00
AK wrote:
> Hello all,
>
>
> My concern is the area above the kiln which is a wood floor of the area up
> above. I would have to measure to be sure but the overhead is maybe 8 feet
> high.
Sheet metal above the kiln attaced with stand-offs (use pipe fitting like galv. or
black iron couplings) will give you the best as well as cheapest and easiest
protection. Air flow around the back of the sheet metal will keep the wood cool.
I use metal pole barn siding when I can find scraps the right size.
> I have not decided what the method of the firing will be yet I will
> either create a lid for a top loading method or rig the barrel and lift the
> whole thing up on a pulley system.
If you use pulleys, make a counter-weight system rather than a winch-type affair.
The winch is too slow and transmits vibration to the kiln. If everything is not
rock-solid . . .
>
>
> I just bought a venturi type burner (MR-750) for max 78,000 BTU's and then
> saw some other burner options with blowers (which I have worked with in the
> past- makes for fast firing) DO I need a blower for a propane set up?
Don't bother with a blower. I think your burner will do just fine.
--
Norman van der Sluys
by the shore of Lake Michigan, remembering the Osage Orange tree in my boyhood
neighborhood near Washington, D.C., and wondering if they grow here in Michigan.
John Vandermeulen on sat 5 aug 00
As I read your message, you are considering placing a raku kiln under a living
quarters, or under a building of some sort? Is that right? And what sort of heat
are you planning to use - wood fire inside the drum?
First thing I would do is check with your local fire department re. regulations.
This is an absolute. Never mind all other thoughts. That check up with the fire
folks is the absolute first thing to do.
John
AK wrote:
> Hello all,
>
> Let me ask a couple of questions about Raku kilns if no one minds.
> I am building a kiln in a steel barrel lined with ceramic fiber and I am
> needing advice on the location. I thought I picked a good spot, covered and
> 3/4 around open (no walls) and behind it cinderblock wall and gravel floor.
> My concern is the area above the kiln which is a wood floor of the area up
> above. I would have to measure to be sure but the overhead is maybe 8 feet
> high. I have not decided what the method of the firing will be yet I will
> either create a lid for a top loading method or rig the barrel and lift the
> whole thing up on a pulley system.
> what are the protocols concerning the heat emission during the pulling of
> ware? What is a safe distance, if any, from this ceiling or should I line
> it with heat tolerable material? I thought about putting the base on a
> wheeled cart but the gravel doesn't allow for easy transporting. Any advice?
> In addition...
> I just bought a venturi type burner (MR-750) for max 78,000 BTU's and then
> saw some other burner options with blowers (which I have worked with in the
> past- makes for fast firing) DO I need a blower for a propane set up? the
> kiln would be a 55 gal barrel/ about 17in diameter. I don't think I can use
> the burner I just purchased with a blower component and I don't want to be
> painfully disappointed. Any thoughts on these matter would be greatly
> appreciated.
> Thanks, A.
>
> ______________________________________________________________________________
> Send postings to clayart@lsv.ceramics.org
>
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>
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KYancey on sat 5 aug 00
I don't know if this will help, but here are some pics of the raku kiln that I built.
http://www.geocities.com/Yosemite/Forest/1154/
Note the threaded rods I installed in opposite sides of the kiln. This keeps the drum
very stable. I have since replaced the counter weight with a cinder block. This works
better since I can place hard brick within the holes to adjust weight.
> Sheet metal above the kiln attaced with stand-offs (use pipe fitting like galv. or
> black iron couplings) will give you the best as well as cheapest and easiest
> protection. Air flow around the back of the sheet metal will keep the wood cool.
> I use metal pole barn siding when I can find scraps the right size.
>
> Norman van der Sluys
>
I think this is a very good idea too. As you know heat rises. As you can see from my
photos, my kiln is about 3 to 4 feet away from my stockade fence. It barely gets warm.
Smoke and fumes are going to be your biggest concern. I think you are going to be
amazed as to how well heat is contained within the fibre lined drum, I know I was.
Hope this helps.
Ken
Dewitt on sat 5 aug 00
Putting a raku kiln under a wooden floor is not a good idea. Don't do
it. Figure out how to move it into the open.
Your MR-750 burner will be sufficient. Make sure you have an orifice sized
for propane. I'd recommend you use a regulator. You can probably get one
locally, but if not see http://wardburner.com/.
deg
At 16:21 8/4/00 -0400, you wrote:
>Hello all,
>
>Let me ask a couple of questions about Raku kilns if no one minds.
> I am building a kiln in a steel barrel lined with ceramic fiber and I am
>needing advice on the location. I thought I picked a good spot, covered and
>3/4 around open (no walls) and behind it cinderblock wall and gravel floor.
>My concern is the area above the kiln which is a wood floor of the area up
>above. I would have to measure to be sure but the overhead is maybe 8 feet
>high. I have not decided what the method of the firing will be yet I will
>either create a lid for a top loading method or rig the barrel and lift the
>whole thing up on a pulley system.
> what are the protocols concerning the heat emission during the pulling of
>ware? What is a safe distance, if any, from this ceiling or should I line
>it with heat tolerable material? I thought about putting the base on a
>wheeled cart but the gravel doesn't allow for easy transporting. Any advice?
>In addition...
>I just bought a venturi type burner (MR-750) for max 78,000 BTU's and then
>saw some other burner options with blowers (which I have worked with in the
>past- makes for fast firing) DO I need a blower for a propane set up? the
>kiln would be a 55 gal barrel/ about 17in diameter. I don't think I can use
>the burner I just purchased with a blower component and I don't want to be
>painfully disappointed. Any thoughts on these matter would be greatly
>appreciated.
>Thanks, A.
>
>______________________________________________________________________________
>Send postings to clayart@lsv.ceramics.org
>
>You may look at the archives for the list or change your subscription
>settings from http://www.ceramics.org/clayart/
>
>Moderator of the list is Mel Jacobson who may be reached at
>melpots@pclink.com.
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