Anyone have any good solid information on the difference (or lack of) in energy efficiency on external heaters? In a simple way, im considering swapping my 300w internal for a 300w external to remove more equipment from the tank (recently shifted to an ex filter.)
However I'm really interested in whether one of these spends more or less "on" time in comparison. Simple logics dictates neither because if the water cools going through the filter, the heater in the tank has to heat the water, same as an external would need to heat the water.
But then maybe by concentrating cooled water through the heater and improving the warm water circulation, maybe slightly warmer water makes it to the heater, resulting in less on time?
Anyone ever do a study on this?
I'm planning on shifting to this irregardless and may purchase a plug in energy monitor to follow it up if nobody has looked into it...
However I'm really interested in whether one of these spends more or less "on" time in comparison. Simple logics dictates neither because if the water cools going through the filter, the heater in the tank has to heat the water, same as an external would need to heat the water.
But then maybe by concentrating cooled water through the heater and improving the warm water circulation, maybe slightly warmer water makes it to the heater, resulting in less on time?
Anyone ever do a study on this?
I'm planning on shifting to this irregardless and may purchase a plug in energy monitor to follow it up if nobody has looked into it...
