Need some advice or pointers :)

[Joshua Hurst]

It does depend on the model of the heater. If it has to be partially exposed like that, then you have no choice. I usually go with fully submersible heaters. As far as placement, you want it wherever it will circulate well, otherwise you'll have a warm area near the heater and a cooler area away from the heater.

Maybe I'll upgrade it later. Their not to expensive