gk_impala wrote:
> Hello mumin,
> They work using a bi-metal element, which will bend more when heated,
> and thus acting like a relay. Adjust the distance to the contact, and
> it will switch on higher temperatures. They are just set on a fixed
> range.
Yep with liquid immersion, you should really be able to just bypass the
switch and have the element on the full time. Should work fine since with a
large aquarium and small heater it'll basically be on the whole time anyway, but
I think there is a limit of good return on the heat, after a certain point some
etchants become worse in some respects like etching too fast with too much
undercutting etc.
Alan