Electric Heat Treating Oven

[cpshoe]

Does anyone have any suggestions/plans/information on building an electric heat treating oven? I am researching information with the intent on building one. Thanks.

[KNeilson]

Try this thread,
http://americanlongrifles.org/forum/index.php?topic=27891.0

[Long Ears]

Before you spend too much time and money you might want to check USA Knifemakers Supply. They have great ovens and controls. Great people and service. Bob

[T*O*F]

If you religiously check craigslist, you can often run across potter's kilns at bargain prices.  You gotta catch the one where they are tired of it taking up space in the garage and just want to get rid of it.

[jerrywh]

 I made three of them. They are the same as a kiln but should have a front door instead of a top door. The main thing is to have a good pyrometer for measuring the temp. You can use old electric stove switches for the controls. Instead of the wall mounted pyrometer I would just buy a fluke hand held pyrometer.  You can put the probe through a vent hole in the rear.  you will need a type K thermocouple with a stainless probe about 24+ long. My small one has a box about 12" x  12" x 18". they are not cheap to make. The size makes a lot of difference.  There is a book called the kiln book get it.  
http://www.abebooks.com/servlet/ShopBasket?ac=a&ik=6020003807&ir&xbf=b3MtY2Ytb2VuYXF4ag__/30114929638961286644&clickid=wDyU2LU93z7q2mcyDeyRIQkTUkVycmQB3QH3Qw0&cm_mmc=aff-_-ir-_-59145-_-96540&afn_sr=impact