I don't think you will be able to exceed 104 degrees.
The system uses thermistors, and IC.
Thermistors are chips that change resistance value with temperature.
Integrated Circuits and Printed Circuits rely on proprietary copy written software to operate.
NSF (National Safety Foundation) UL, EL, and APSP, all have governing regulations of industry standards to follow. Along with chemistry residual levels, and turn over rates, the industry must adhere to a set maximum temperature level of 104 degrees.
Balboa use to offer over clocking mods to their processors (from what I have heard),
but no more. (from what I have heard)
( Maybe some one else will chime in on this one

)
Some how, Watkins Manufacturing has an "UT" or upper temp feature on their Calderas that allows temps up to 108.
Maybe some one can explain all of this to us.
