I just bought this heater: http://usa.hagen.com/Aquatic/Heating/Heaters/11230
It says that it's submersible, but as I was reading the instructions it says several things like "if appliance falls into the water, don't reach for it" and "it should not be plugged in if there is water on parts not intended to be wet."
... so what gives? Is this not fully submersible? Does submersible just refer to putting the glass part into the water? But then, I don't know how far into the water it can
go, because there is no label for a "max water level." It only has a label for the "minimum water level." Does anyone have this heater, or know anything about Hagen products? I just figured I ought to err on the side of caution. Thanks!