Ask a question
The heater could be laid down in the sump. Under full details the length of each heater is supplied. Feel free to let us know if you have any further questions!
You will want a minimum of 2.5 watts per gallon up to 5 watts per gallon. Overall on a 120 gallon you will need a minimum of 300 watt heater. Feel free to let us know if you have any further questions!
Quick Compare - Eheim Jager TruTemp Aquarium Heaters
|Model No.||Maximum Aquarium Size||Power Consumption||Length|
This Heater Rocks By DrChop on 12/8/2016DrChop would recommend this product to a friendSince setting up my 28g nano, I have been fighting temp fluctuations all day every day. I bought a 100w VA brand when I bought the tank and it was never even close to accurate. Decided during the sales of Black Friday to get a 125w Eheim and it has been the best decision. After looking at the flat one from another manufacturer I saw at Palooza, I decided on this one instead. Reviews were pretty solid and I know they have been a solid brand over the years. Now, my temps might move about 0.5 degrees between day and night. I don't have to keep fans on the tank, adjust the temps, or anything. It just works and holds true temps. Word of advice: Don't Cheap Out On The Heater!!
Excellent heater but be wary of size By PR on 12/7/2016PR would recommend this product to a friendThe Jager heaters have been around for a long time and have consistently remained among the top recommended in the hobby. I am pleased to say that nothing has changed. They maintain a consistent temperature and the ability to calibrate ensures accuracy. Of course, they are even better if you drive them via a dedicated controller. They also have shatter-proof glass and dry-running protection where they will automatically shut down if they detect they are not in water.
The only negative with these is the size. Please be sure to read the chart and measure out how much room you have. I took 1 star off simply for the size. If they could shave a few inches off of these, they'd be a perfect heater.
Junk Heater By Brianna on 11/20/2016Brianna wouldn't recommend this product to a friendIf 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 11/18/2016buntaro wouldn't recommend this product to a friendI 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 10/23/2016Jono would recommend this product to a friendThe heater is constructed out of high quality material.
Only thing I buy By Reid on 10/20/2016Reid would recommend this product to a friendOnly 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 10/11/2016Jason would recommend this product to a friendI'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 9/26/2016Ramturbod would recommend this product to a friendI 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 9/2/2016Ray wouldn't recommend this product to a friendEheim 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 5/10/2016Jorge wouldn't recommend this product to a friendI 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 5/9/2016John would recommend this product to a friendThis is a great heater. Easy to use. Well built. Would by this one again.
Works but... By Helen on 1/28/2016Helen would recommend this product to a friendI 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.