[Cob] Cob Oven, Glazing

[Ron Becker]

Has anyone used borax or another substance to harden the interior 
surface. I was thinking of adding a `thru the wall' way of adding 
moisture during the first ten minutes of baking and am concerened about 
weakening the oven shell over time. This is why I am consitering some 
sort of glazing of the interior. I would'nt use something toxic.

I also want to add a permanant temp probe [thru the wall] that will 
connect to a multimeter and give me temp in C. Anyone done this? I 
found a probe that will take the temps for about 15 bux I already have 
a cheap multimeter that reads temp from the thermocouple.

Ron
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