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  1. In Topic: Forced air burner plans?

    Posted 23 May 2013

    You cannot (should not) change the size of the orifice of a venturi burner. As the gas goes through, it pulls the air through. If the orifice size is changed, the air to gas mixture gets all messed up. So you just buy whatever size (BTU) venturi you need. They are typically not as powerful as power burners, so you generally need more. Power burners can be made to just about any size (BTU), so they're greatest benefit is that you can usually just use two. Power burner kilns also don't need a tall stack/chimney, since you don't rely on secondary air (draft) to aid in the combustion.

  2. In Topic: Shaker-mixer.

    Posted 23 May 2013

    Mixer blades work great, and they're faster than shakers. Mixers also do a better job, because they break up clumps with the shearing action of the blades. Shakers are not good for clumps. Mixers also scrape the bottom of the bucket to get all the settled stuff into the mix. They use shakers for paint because it allows them to mix with the can closed, so it's much cleaner. Imagine having to wash paint off a mixer every time you mixed a gallon...

  3. In Topic: First Kiln Advice

    Posted 22 May 2013

    Some companies make long, wide kilns, so you can get large volume without height. Oval or rectangular kilns give you the option of having decent volume without height. My L&L DaVinci is a top loading, 20 cubic foot kiln. It uses three 14x28 inch shelves per row. It's a standard 3 ring, 27 inch deep kiln. With only two rings it would still have more interior volume than a 27x27 round kiln (Skutt 1227 or L&L E28T), but be much easier to load. Plus rectangles make for more efficient use of interior space than circles.

  4. In Topic: Questions about using wax resist

    Posted 22 May 2013

    View PostBenzine, on 22 May 2013 - 07:54 AM, said:

    Isn't there some debate, over whether or not, the burnt off wax, effects the elements at all?


    Only if you want to start that debate.Posted Image

    Anything burning out in the kiln will affect the element life. But wax doesn't create enough carbon to matter.

  5. In Topic: Room Temperature during glaze firing

    Posted 22 May 2013

    View PostJBaymore, on 21 May 2013 - 08:17 PM, said:

    View Postneilestrick, on 21 May 2013 - 10:11 PM, said:

    A 23x27 inch kiln with 3 inch brick will put out about 14,000 BTU's per hour of heat into the room at cone 6. That's like leaving two average size stove burners on full blast. At cone 04, about 11,000 BTU/Hr.


    True, but you have to also take into account the (supposed) air turnover rate in that space given the existing ventilation on the BTU / hr. accumuilation in the space? And also minus the heat pump efect of the AC unit in BTU/ hr.


    Agreed. Just wanted to give people an idea of how much heat comes off a kiln.

My Information

Member Title:
Neil Estrick
Age:
Age Unknown
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Location:
Grayslake, IL

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Website URL  http://www.neilestrickgallery.com

Comments

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  1. Photo

    Mary T Icon

    23 Feb 2013 - 14:16
    AND doing some hand building and needed the slab to harden a little and put it on some canvas on the floor and it dried just like that... this is a whole new wonderful space that I never thought about before!
  2. Photo

    Mary T Icon

    23 Feb 2013 - 13:26
    I just wedged my clay. I dumped the water off my reclaim, spread it on a big cloth and put it on my basement floor. Moved it a couple of times and it was perfect for wedging today and I want to thank you. It peeled off the material like magic. Thank you, thank you.
  3. Photo

    Claypple Icon

    15 Dec 2012 - 00:36
    I know you are very much politically correct and do not want to put any company that produces kilns down, but
    maybe you could give me an advice which kilns are the most reliable? I am interested in firing up to coin 6, middle size,
    electric, any voltage.
    Thank you in advance.
  4. Photo

    TJR Icon

    30 Nov 2012 - 10:41
    NEIL;I made this small rimmed bowls out of porcelain, with the idea of putting a round candle in for Christmas.Before I waxed the foot, I brushed Alumina on, to avoid "plucking", as you suggested. No plucking, so thank-you for the suggestion.Tom Roberts
  5. Photo

    TJR Icon

    22 Aug 2012 - 16:57
    Just adding you as a friend.
    Tom.
  6. Photo

    TJR Icon

    25 Jul 2012 - 19:13
    Neil;I keep looking at that luscious yellow glaze on your teapot. Is your colourant rutile? Are you firing oxidation?Can we maybe trade a recipe or two?Tom Roberts[TJR]
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