I have replaced them twice with parts supplied by Costech. They  
considered it a warranty repair and there was no charge. I don't know  
what the wire they are using is rated to, but we are now, per their  
recommendation, only taking the combustion side up to 1000C. It's  
easier to get the quartz inserts out at this lower T.
-- 
Charlotte Lehmann
Assistant in Instruction
Bates College
Department of Geology
206A Carnegie Science Building
44 Campus Avenue
Lewiston, ME 04240
Phone: 207-786-6485
FAX: 207-786-8334


Quoting William Rugh US EPA <[log in to unmask]>:

> Has anyone replace the wire heating elements in the Costech, or Carlo Erba
> furnaces?  The highest temperature NiChrom wire I can find is only good to
> 1010 C.
> Thanks!
> William Rugh, Chemist
> Integrated Stable Isotope Research Facility
> US EPA, NHEERL
> Western Ecology Division
> 200 SW 35th St.
> Corvallis, OR 97333
> Office phone: (541) 754-4604
> Lab phone:     (541) 754-4515
>
>