[Clayart] Gas kiln and tank size question

vpitelka at dtccom.net vpitelka at dtccom.net
Wed Apr 27 23:07:31 UTC 2022

I agree with Terry.  Only a burner designed to handle LPG in the liquid form should ever be used to do that, and in that case the tank is still vertical but feathers an interior tube that draws the liquid from the bottom rather than the gas from the top.  Nils Lou designed a liquid propane burner.  I saw them in action at Overland Stoneware in McKinleyville, California around 1974.  They were like rocket motors - the loudest burners I have ever heard.  
- Vince

Vince Pitelka
Potter, Writer, Teacher
Chapel Hill, NC
vpitelka at dtccom.net

-----Original Message-----
From: Clayart <clayart-bounces at lists.clayartworld.com> On Behalf Of Terry Lazaroff
Sent: Wednesday, April 27, 2022 2:54 PM
To: Clayart international pottery discussion forum <clayart at lists.clayartworld.com>
Subject: Re: [Clayart] Gas kiln and tank size question

This sounds extremely dangerous.   


Sent from my iPad

> On Apr 27, 2022, at 2:18 PM, Jim Bledsoe <gamesbledsoe at gmail.com> wrote:
> it will require replumbing to do this turn the tanks over and use 
> liquid supply to the burners this was Paul Soldner's suggestion when i 
> was faced with similar propane freezing issues.
>> On Tue, Apr 26, 2022 at 12:59 PM Rob M <woodfire at gmail.com> wrote:
>> I recently acquired a 13 cubic feet updraft kiln. It has 8 MR750 
>> Venturi burners that initially ran on natural gas. I'm replacing the 
>> orifice size for propane.
>> I'm clueless as to how much gas this will consume for cone 6 or 
>> ideally cone 10.
>> Does anyone have experience or knowledge if two 100 pound cylinders 
>> linked together would be adequate, without freezing up with this puppy?
>> Seems to be a shortage of 250 pound tanks in this area (central FL).
>> I did read efficiency drops on a greater psi of the gas for these burners.
>> So I would like to keep it low. 1 psi was 77,000 plus btu’s per burner.
>> Thank you for the discussion.
>> Followed the email list in the 90’s and beyond, even stopped in the 
>> NCECA room cup exchange one year… Robert
>> --
>> From Zen and the Art of Motorcycle Maintenance "You see things 
>> vacationing on a motorcycle in a way that is completely different 
>> from any other. In a car you're always in a compartment, and because 
>> you're used to it you don't realize that through that car window 
>> everything you see is just more TV. You're a passive observer and it 
>> is all moving by you boringly in a frame. On a cycle the frame is 
>> gone. You're completely in contact with it all. Your in the scene, 
>> not just watching it anymore, and the sense of presence is 
>> overwhelming. That concrete whizzing by five inches below your foot 
>> is the real thing, the same stuff you walk on, it's right there, so 
>> blurred you cant't focus on it, yet you can put your foot down and 
>> touch it anytime, and the whole thing, the whole experience, is never removed from immediate consciousness."
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