[Clayart] coil life

Kash Mistry kashmistry1248 at gmail.com
Sat Apr 9 13:23:36 UTC 2022


Good morning Clayart comrades,

Where would I find the free book on electric kilns
Repair and maintenance by Arnold
My L&L  is doing well with proper and careful firing , loading and unloading after about 85 firings.
I am sure I will need to change coils soon


Thank you all
Kashmira mistry
Born from fire

Sent from my iPhone

> On Apr 9, 2022, at 5:57 AM, Kathi Koester <mrskathikoester at gmail.com> wrote:
> 
> Thank you Mel!  I need to make more time (&courage) to be a
> Tinker-er/engineer. Thank you Arnold for your recent phone help as my kiln
> and I have new experiences together. Skutt tech line has different advice
> on many topics including element life, so my second opinion call to Arnold
> yielded excellent, detailed information.
> Thank you to everyone on [clayart] for your daily information, and the
> couple of you for your patience with my emailed questions.
> Sincerely,
> Kathi_MN
> 
>> On Fri, Apr 8, 2022 at 7:33 AM mel jacobson <melpots at mail.com> wrote:
>> 
>> if you own an electric kiln, you will be changing coils.  Like lite bulbs
>> in your house, they fail.  Relays fail all the time.
>> 
>> There are a great many reasons coils fail.
>> HOW DO YOU FIRE YOUR KILN, AND WHAT TEMP???
>> 
>> If you fire at a school, three times a week to cone 9...you have trouble
>> ahead.
>> If you fire once every two months to cone 06, your coils will last for
>> years.
>> 
>> Learn the word torque. The energy you use to clamp wires together in a
>> kiln.
>> If you change tires on a 747 you will need a great deal of torque on those
>> bolts holding the wheel in place.
>> 
>> Dirty wires and connections do not let the power pass and they do fail.
>> 
>> I found a L&L kiln in a local dump. It was built in 1960. It was actually
>> in good shape. But, the wire connections were all melted and burned.
>> 
>> I took it home, took out all the coils, cleaned the wiring with sand paper.
>> 'made it all shine. Took the kiln sitter apart and cleaned it all and
>> re/calibrated
>> the system. I had a box of coils from several schools. About 25 coils. I
>> picked out
>> enough to fill the kiln. sandpapered all the connections, put it all
>> together  and
>> fired it for bisque only and it lasted 18 years.
>> I used bronze barrel connectors, torqued the connections.
>> Everything was clean and gloss. I cleaned the coil grooves and
>> washed the brick with soapy water. Used steel wool on the outside. Added a
>> 50 amp
>> breaker and put in new wiring to the kiln from the breaker. The total cost
>> for that
>> brand new kiln was about 30 bucks fire some new wires and connectors.
>> 
>> Never once did I get a book and try to figure out why coils burn
>> out...Venting?
>> What?
>> 
>> No, I made a new kiln out of an old one, made the proper connections and
>> cleaned the
>> kiln like brand new.  Yes, with soap and water and a brush.
>> 
>> Look at some of the pictures that Arnold is posting on facebook from his
>> kiln repair
>> business.  wires connected with finger tight torque. black and melted.
>> Coils with
>> melted glaze on them. Thin wires with small spade connectors...melted.
>> Kilns sitting outside
>> under a small roof. Open the control box and it is all green vegetation.
>> 
>> Remember, Arnold was the author of 32 pages in our kiln book...repair and
>> maintenance of an
>> electric kiln. the book is free of charge.
>> mel
>> 
>> 
>> website: www.melpots.com
>> www.melpots.com/CLAYART.HTML
>> 
>> --
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> "For since the creation of the world God's invisible qualities - his
> eternal power and divine nature - have been clearly seen, being understood
> from what has been made, so that men are without excuse." Romans 1:20
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