Heater with covers removed. HELO Pro SK-8 (8kw 220v)
Ceramic and coils wraps around cylinder.
Close up.
Looking up from bottom into hollow cylinder--grate is where rocks rest.
Looking up from bottom.
Underneath--beige is wire box and blue is cylinder.
Only one hole underneath heater. I got my finger up there--no buttons, etc.
Wire box panel.
Found this little spot underneath wire box...just a hole.
Looking from top down.
Inside wire box. #6 wire.

