This works for me also. No problems so far with a fish tank heater.
72/3
Tony G4WIF
From: Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com]
My fish tank heater has a glass bottom that is under the water level.
Just do not drain tank till heater totally cools down and is unplugged for shock purposes. Any good quality pet store chain like Pets R Us should sell a number of them at different prices. I have a digital Meter for checking on temp of bath also.
Posted by: kbyrne10@...