Arduino and SSVR

A friend of mine is working on a kiln. I know there has been a lot posted about kilns and reflow ovens in the past but we were thinking of a slightly different route.

His heating element is around 16 amps with 220. This is the SSVR we want to use.
http://www.auberins.com/index.php?main_page=product_info&cPath=2_30&products_id=353

How would we go about controlling that SSVR digitally with the arduino vs the manual pot?

You need a thermocouple - lots of details around - heres one

Oh yeah, familiar with the thermocouples, I’m more inquiring about kicking the heating element on. It seems that with the SSVR and controlling the voltage is a much more accurate way compared to just turning it on with a traditional SSR.