I sent an email to the Eheim asking about the possibility of using a heat-guard on my heater, they said the following:
"Dear Mr. Luis,
Unfortunately we are unable to Provide advice on These setups. However there are two things you must take in Consideration:
1) There must be good water circulation near the heater, heat Otherwise water will not be Able to be distributed Equally
2) The protective casing can not be in contact with the glass of the heater Portion Otherwise it will melt.
Please do not hesitate to contact us if you require further Top assistance.
Yours truly "
after reading this ... think of using a pvc pipe with at least twice the diameter of the heater. Make a lot of holes, I want that it looks like a grid. I wonder if that's what I do or anyone have any other idea.


