> my problem is: no aquarioum heater thermostat goes more then 34
> degrees c, while i need about 60 i think- for ammounium
phersulphate.
I use aquarioum heaters in my etch tank of Ferric Chloride, you can
more less bypass the thermostat. Mine have a plastic cap on top
that covers the thermostat control. It will have a stop on it but
you can bypass it and turn it up more. I have two in a 5 gal. tank
and heats it up to over 120 deg.F. that is as high as I can measure
so not sure about what the real temp. is. Takes it a little while
to get it there but they will get it plenty hot. Well etch a 8" x
10" or 8" x 12" board in less than 8 mins.
The heater that I have I got at Wal Mart.
Ben