Junk Heater By Brianna on 11/20/2016
Brianna wouldn't recommend this product to a friend
If you want a junk heater this is the one to buy. I bought two for a 300 gall Pacu tank, both failed within a month. I will never buy another Eheim heater. Says there fully submersible, both of mine had water inside the heater. DO NOT BUY.
Fluctuates by about 2.5 degrees By buntaro on 11/18/2016
buntaro wouldn't recommend this product to a friend
I have a 150 watt on a pretty small tank and I've found that the temp fluctuates between 76.2 and 78.8 degrees regularly (monitored by an Apex system). 2.5 degrees is a pretty big swing for a reef tank, I actually have two of these and they both have the same issue. It may be that the tank is too small and the residual heat continues to heat the tank after the Apex turns it off but I see no reason for it to not turn on at 70 degrees where I have it set. The adjustable heater control ring is just about impossible to use too.
Quality Heater By Jono on 10/23/2016
Jono would recommend this product to a friend
The heater is constructed out of high quality material.
Only thing I buy By Reid on 10/20/2016
Reid would recommend this product to a friend
Only heaters I've ever had. I replace them every couple of years since they are relatively inexpensive, but never had a failure.
Awesome Heater! By Jason on 10/11/2016
Jason would recommend this product to a friend
I've been using these heaters for many years, I keep coming back to what has worked for me over and over again. Can't go wrong with these eheim heaters!
Very Happy with the Product By Ramturbod on 9/26/2016
Ramturbod would recommend this product to a friend
I have used one in the past in my fresh water tanks and needed a replacement for my FOWLR tank. Great product.
Not as good as before By Ray on 9/2/2016
Ray wouldn't recommend this product to a friend
Eheim is used to be the gold standard in the past for glass heaters but the new one I just bought didn't work properly, it heats up for like 5 minutes and turns off, hopefully I am an edge case.
Would not purchase. By Jorge on 5/10/2016
Jorge wouldn't recommend this product to a friend
I bought 2 of these guys, and within a week of use, 1 had failed. Eheim sent me 2 replacements. The first one failed and actually burned out an outlet. The second one they sent me had the cable cut. I will never buy Eheim again. View my topic on this matter on reefcentral: http://reefcentral.com/forums/showthread.php?t=2578770
Great heater By John on 5/9/2016
John would recommend this product to a friend
This is a great heater. Easy to use. Well built. Would by this one again.
Works but... By Helen on 1/28/2016
Helen would recommend this product to a friend
I have this heater on a 55 gallon display with a 240 gallon sump (yeah I know...serious overkill). Originally I had a 265 gallon display but when the bottom fell out, the 55 was pressed into service. My tanks are in a converted garage that we euphemistically call the family room. It is very cold in there in the winter. This heater keeps the water warm nicely. My only concern is that it never seems to shut off. Would I recommend it? Time will tell.