Kerbins;4017382; said:In order for the Fluval E series to work properly you need to make sure there is plenty of water flow going over/through the heater.
I'd have to agree. I do have much water flow in the tank that contains my Fluval E heater. I've not had any problems and I see it as a good product. I's purchase another E series. Perhaps, Fluval needs to emphasize the importance of water flow.
