K. H. Huppert Furnace

Old Huppert Furnace, waiting for new controller. I currently have no information on manufacture date, it is a 110v, 8amp electric furnace. Ultimately it will be used as a heat treat furnace for cryptocrystalline rock for flint knapping.

[@gregscherer8295]

Haven't seen one of these in a while. I used to build these at the KH Huppert factory in South Holland, Illinois, back in the mid 70's.

[@Wertak68]

Well if you have any manuals, I know a guy that would appreciate more info.

[@samuraiseall]

I just got one, do you have any manuals that I can look at??

[@dannyl2598]

Thanks. I have one that looks newer and it has a two prong plug that I'm sure is original. I think the practice of grounded electrical systems came about in the early 1960's everything about this one looks like something from the 1940's.

[@Wertak68]

I am hoping someone has a manual to share.

[@joseluiscastrosoto5395]

Good morning, I am a chemistry professor in a technological institute in Venezuela, in our laboratory we have a Hupperts Mighty Midget Model 333 muffle, which we want to recover, the equipment works but its temperature meter does not, the needle does not move. The information available on the internet is basically about selling this "seniority" of equipment. Your video is the only interesting source I could find. Please, do you have information about this equipment that could be useful to repair the temperature meter? We would appreciate your help. Bye.

[@Wertak68]

Unfortunately we simply replaced parts with new many years ago. I never found any legacy documents or repair manuals, sorry.

[@joseluiscastrosoto5395]

Ok, understood, then we will have to improvise, and in some way relive this little one. Thanks for the input,
Bye.

[@alexib-1]

hi, Did you manage to find more information on how to update this furnace?

[@Wertak68]

@@alexib-1 unfortunately I have not. The best option if you want an operational oven would be new parts. Any broken furnace with intact heating coils can be easily updated relatively cheaply.

[@SCBotanicals]

@@Wertak68 i have a similar model runs a low med high , do you know how to connect the 3 wires to the digital controller ?

[@Taematoe]

I just got one of these from my mom. She said it came from a dentist office. Mine has a plaque under the dial on the right. MOD 434 DL. Seems to work.

[@Wertak68]

@@Taematoe did you get a manual for it?

[@Taematoe]

@@Wertak68 No sorry. I was thinking of casting miniatures with it.

[@Wertak68]

@@Taematoe metal casting? I think the zinc aluminum alloys would work well for that furnace.

[@bob1997ification]

Hey guy, I have this exact same kiln and am trying to automate it like you were talking about. Could you help me out! I would really appreciate it!

[@davidlong3521]

Working on a style ST I resent purchased. Relay chatters. Contacted Huppert. They are sailing me some parts and will hopefully provide a wiring diagram.

[@alexib-1]

Hi, I have the same oven and I would also like to automate it, do you have more information on how to do it?

[@alexib-1]

I have the same oven and I would also like to automate it, do you have more information on how to do it?

[@Wertak68]

It requires a solid state relay with heat sink and a good thermocouple. There are plenty of youtube videos on upgrading old furnaces.

[@alexib-1]

thanks my friend, I'm going to test, I think it's not that complicated with a good pid controller

[@CarlosGonzales-zz9xb]

I could only get mine to 1500f. Took over an hour.