There probably aren't a lot of people that this video serves, but seriously, thank you for making it. The instructions that came with this heater are complete shit. I read it four times and didn't understand what it was saying - my reading comprehension or not, for something so important IE not cooking your fish, you would think the instructions would be more clear and easier to understand. I had a heater fail, the fish expert I trust at petsmart exchanged it for this one, and tried to explain the calibration settings with the two rings. My tank was already over temp at 80F ( the previous heater failed and didn't shut off, which I caught in time, thanks OCD ) and when I put the Jager into the tank it was staying on. Panic googling brought me to your video. TLDR; You made this very easy to understand, and the heater is currently calibrating correctly. THANK YOU.
I thought this would be a silly video just put out for content but I was surprised how useful it was. Even after 40 years of fishkeeping it's good to know I am still learning. Good job!
This was super helpful! I must have glanced over the calibration ring setting in the manual and never understood what the little red arrow was for. Thanks BRS!
With all the buckets I have lying around, you'd think I'd use one for calibrating my heater. Great tips. Sometimes the simplest things make the biggest difference.
My Jager just died....was about 5yrs old. Just got the new one. Had to come and watch a video. Has been so long since I had to calibrate one. lol Love the idea of doing it in the bucket. never thought of that.
lol...i'll never forget my one LFS owner on the latest eheim/jager heaters, somewhat sarcastically: "You're paying all that money for a heater and they make you calibrate it?" While the ability to recalibrate it is nice, I found it a royal pain, and ultimately my eheim's calibration just kept getting worse and worse to the point the heater just wouldn't turn on unless it was turned nearly all the way up. So yeah - i call it toast. I have at least two LFS that still have green ebo-jager heaters in nearly all their tanks. I know as a kid, 15 years ago, those were already replaced by the blue-capped models. So how old are those green ones, 20, 25, 30 years old? And they still work? Why aren't heaters built like this anymore? My blue-top eheim is already dead. I'm sticking with aqueon pro's on my apex or on inkbird itc-308s for now.....The more I think about those green jagers - the more angry it makes me - as I think heaters have actually gone down in quality since then and it makes me sad....
LXXero , Its because today everything is made to last 2 years and then break , politics .... EU standard blah blah blah .... today's world is about quantity not quality unfortunately ... .
I'm also using an Inkbird ITC-308. I want something that will last, but won't break the bank. I've read the aqueon pro's split in half though which makes me nervous. However, that's where the temp controller comes into play. How's the pro been holding up for you?
They don't make ANYTHING like they used to. My great grandfather had hundreds of power tools he used and bought in the 50s and they worked right up to the day he passed away in 2005.
when you said ..right out the box you like to set the red calibration ring to its highest and lowest reading,now how does that contribute to the desired temp you want?
UPDATE... (NOT your fault but..) After following your instruction on pre-setting the heater, it never shut off - or so the light indicated.. I kept an eye on the temperature which did not budge and after 14 hours of the indicator light being on steadily, I came to the conclusion that it was - as the old saying goes... Dead in the water! Why would such a great aquarium hobby manufacture make something so simple - difficult to work with? A simple dial works all the same. It's like Ehiem is worried the fish might try to tamper with the heaters... REALLY??? Mine is now in its new location btw... G tank!
Try fitting an Eheim 300W heater into a 5 gallon bucket. Doesn’t work. These heaters are double the length of most other heaters. I also found the Eheim suction cups to be some of the worst in the hobby. They get hard very quickly and start to fail, resulting in a heater laying on the substrate or hanging by the cord. I have three Eheim heaters and only one is accurate. Tried to recalibrate numerous times but they are jacked. Switched to Aqueon Pro.
Marineland Pro has tooooooooooooooons of issues with never shutting off and cooking fish. That failure is very consistent, if it fails 9/10 that's the failure that happens. I don't recommend any Marineland heaters. BOTH of the ones I've had failed, and the only reason I caught the temperature before my fish were injured was my OCD and working from home. Aqueon's Pro is awesome! So far this jager has been great.
When you set this heater to a temperature to 72 this heater up to 78 degrees before it shut off. It is off by like 5 or 6 number so if buy one make sure you a thermometer. If you don't you may be in trouble
I have two of these heaters and I just could not get the calibration settings to work right so I ended up eye balling them in a bucket of water until I got the temp set to where I wanted it. It took an extra day, but that was all part of the planning I did before I set up my tank. Still, the temp was not as stable as I wanted so I replaced the one in my reef tank with a Neo-Therm. It works really well. I use the Jagers to heat my mix water and as a back up heater. In my Freshwater tanks I use Mainland Precision Digital heaters and they are great.
The stupid thing with this red dial is, and the reason most heaters dont have/need one is; once youve set a temp (on a standard kind of heater) and realised that it is undertemp by 2 degrees. all you have to do it overtemp the dial by 2 degrees and check again, if that is now perfect you can leave the heater to do its thing for the rest of its serviceable life. Having a calibrated needle pointer seems a bit pointeless as heaters are set and forget anyway, unless you continuously change the temp of your tank for some reason such as breeding.. However, having said this, the reason im looking at jager videos is because im buying one. My "superfish" one is too slow to react to a water change
When I tried to calibrate the temp just like you did those two plastic stoppers stopped me from going to the tank temp. I did all this in a bucket and the heater wouldn't stop at temp I wanted. The instruction book was no help. I agree with poster LXXero
Old video but yeah, eheim makes a long lasting heater but they suck when it comes to calibration. I usually don't even bother setting the dial. The one I just bought the other week and set up a few days ago can't be dialed in properly. It has a limit how much you can adjust it and it seems it was off by about 12 degrees f. Adjusted it as far as it would go and the displayed setting is still off by 3-4 degrees.
I'm a little wary of saying bi-metallics are a "win", if only because they can get stuck on or off. I consider a temp controller a necessary fail-safe.
Anthony Ragan - Eheim now manufacture a heater with an electronically controlled thermostat, no bi-metallic strip, so with the use of this heater I would assume you can do away with the use & added security of a temp controller...
A how to topic: When using a manifold with your return pump how do you adjust the gate value to ensure that a protein skimmer, a Bio pellet reaction, Carbon reaction etc. is getting the appropriate amount of recommended water flow? I have more return pump then I need for my tank. Thus avoid the need for extra pumps.
Great video that explains how to do it but sadly the Eheim calibration is simply not very good or accurate. They are great heaters but have a very poor calibration.
I never rely on a heaters built in stat I all ways use a digital heater controllor as back up and run my controllor through a contactor wich powers my heaters so the controllor lasts longer because it only switching 50ma 😉
My Eheim 100 watt heaters are running Hotter than they should. I tried to move the little red button but it does not budge. I have the blue dial set to 78 degree with the larger red tab on top of 78. The thermometer reads 84 degrees. I have two 100 watts sitting in my 75 gallon tank (no fish yet, Thank God) as I am working on the Nitrogen cycle. Hoping someone see this post as you all know the directions suck.
Hi there thank you very much for the nice vedio ,I have a 240 L aquarium and it came with juwel internal filter 200 watts and since I live in Belgium and it is called most of the year it seems that the juwel is working lot so I am paying high bill of electricity, I am thinking to change it to a heater of 300 watt so that it heats speed with less electricity coast is that a correct idea? Which is really good to buy the eheim jager or the Fluval E and how many watts in each case I should take . I have african cichlif Malawi. Please help Thank you Nasir
*BAD IDEA!* Several Reasons why: 1) It's an Aquarium, *NOT* a Tea Kettle. Heaters are either *OFF* or *ON at Full Power.* There is no "Warm Setting". Rapid rises in Temperature are detrimental to your Fish. 2) *150 Watts* is Sufficient for 240 L, especially if the Tank is in a heated room. 3) *EJ* Heaters are designed to be mounted *Vertically* to operate properly. A *300 Watt* Won't fit in your tank properly.
el gezouli abdul - If you think logically, the energy bill won't differ from using 300w instead of a 200w...The 300w will turn on for shorter periods but cost more in electric as you are burning an extra 100w, similarly the 200w heater will be on for longer periods, but burn 100w less for those periods...The energy consumed by both heaters whilst heating to a set temperature over a given period of time will be the same...
I don't understand. I think I have screwed up the temperature setting on mine by moving both the red ring and the blue ring. Tonight I noticed the water was really warm (low '80s), and now can't figure out how to adjust the temp back to, like, 77.
@@pleco101 Eheim jager is a thermocontrol heater, is always regulates the temperature that's why never show the exactly temperature but is a really good one heater.
Hey guys Iv had a 50 watt eheim heater in my 10 gallon tank for about 8 months now. I woke up this morning and the on indicator light isn’t on and my water feels colder than usual. Is there any way to fix this or is the heater broke?
I have set mine to 27 degree celsius but temperature raised to 29.5 degree celsius. I can move my red dial to 29 degree celsius. Cant move +0.5 what to do ? How to calibrate that?
Mine is set at 81 and I’m trying to move the red dial to 79 which is the actual temp but there’s no more room to move the red dial as it’s hitting on the side as far as it will go, how do I adjust this?
There is a limit to how much you can change the calibration of these heaters. If you've maxed out the calibration option, you may just have to set the heater's temp a degree above or below your actual goal temp to achieve your desired water temperature.
I tried in a 5 gallon bucket the 150 watt and 200 watt. Both won't keep a steady temp, goes to 74 to 83 to 81 back to 75....I put a power head in the bucket for flow. Any ideas what I'm doing wrong?
Ok thank you, I'll buy more. Was meaning to anyways. Ever hear of a powerhead heating water maybe? Or maybe my heaters are to many watts for a 5 gallon bucket? Appreciate the help.
I JUST bought this heater and the red light or any light doesn't come on. I am trying to understand how this brand new heater has NO light. And the glass is not broken.
midorialexandros I returned the heater, but this time I didn’t try to figure it out. I I just stuck it in the water and plugged it in. Red light was on and my thermometer tells me the temperature is at 73, so luckily I don’t have to adjust anything. I like my Fuval heater for my other tank better.
Anyone have the problem where the temperature doesn't change anymore on this heater? My first temperature was set to 75. I raised it later to 78. Nothing changed. Raised it to 81. Still 75.
Possibly could be the age of the heater. We typically recommend swapping out heaters once a year to ensure they have less chance of failure that could result in a tank crash.
@@AlexK-ew1mo That does sound pretty odd. If you purchased this from us, please give us a call or shoot us a quick email and one of our reefing experts can help you out right away! Phone Hours: 8am - 6pm CT M-Th 9am - 4pm CT Friday Main: 763-432-9691 Fax: 763-710-4777 support@bulkreefsupply.com
While we'd like to think that all of the gear we use on our reef tanks is perfect, the truth is that it's not. With the Eheim Jager heater being one of the least expensive heaters on the market, having to adjust calibration slightly is to be expected. We actually consider the ability to calibrate a feature!
If your heater is always on and your tank is still not getting up to the desired temperature, you may simply need a larger heater. Or, a second heater to supplement the first one.
I'm totally lost on the purpose of calibrating a heater. Whatever happened to "set it/forget it"? I'll stay with my durable and less expensive Aquatop heaters.
I would avoid these heaters at all costs. I've had five Eheim Jager heaters since March of 2022 and within a few weeks or days they all got stuck in the on position at one time or another and I could not lower the temperatures or recalibrate them causing the tanks to overheat. Their customer service is awful and I'm not even going to bother trying to return them to the company as at best they would replace them with the same garbage, and I'll have to buy new ones anyway of another brand. Total waste of a couple hundred dollars.
@@SKYLANDBAK Cause you cant turn the red bit that much, it is stuck between like 6c. I have two in 2 separate tanks, one is set to 22c and one is set to 23c but it heats both tanks to 26c I cannot adjust it because I can only move the red arrow as far as 24c so it's always going to be 2c higher at best. I want both tanks to be about 23c but I dont want to set the heater to like 19-20c to get it do it right.
I've got two of these and they're awful. They never keep the right temp. I can set it to 78 and it got up to 83 and then down to 75. So hot and cold all day and night. Seriously stresses the fish. These things are junk.
There probably aren't a lot of people that this video serves, but seriously, thank you for making it. The instructions that came with this heater are complete shit. I read it four times and didn't understand what it was saying - my reading comprehension or not, for something so important IE not cooking your fish, you would think the instructions would be more clear and easier to understand. I had a heater fail, the fish expert I trust at petsmart exchanged it for this one, and tried to explain the calibration settings with the two rings. My tank was already over temp at 80F ( the previous heater failed and didn't shut off, which I caught in time, thanks OCD ) and when I put the Jager into the tank it was staying on. Panic googling brought me to your video. TLDR; You made this very easy to understand, and the heater is currently calibrating correctly. THANK YOU.
Ive had this exact heater for 6 years now and still going strong!
Me2
I thought this would be a silly video just put out for content but I was surprised how useful it was. Even after 40 years of fishkeeping it's good to know I am still learning. Good job!
By far the best calibration video for these heaters I have seen so far. Thank you.
Randy has been a great help ......I prefer any visual demonstration over my EHEIM instructions 🏆
This was super helpful! I must have glanced over the calibration ring setting in the manual and never understood what the little red arrow was for. Thanks BRS!
With all the buckets I have lying around, you'd think I'd use one for calibrating my heater. Great tips. Sometimes the simplest things make the biggest difference.
My Jager just died....was about 5yrs old. Just got the new one. Had to come and watch a video. Has been so long since I had to calibrate one. lol Love the idea of doing it in the bucket. never thought of that.
lol...i'll never forget my one LFS owner on the latest eheim/jager heaters, somewhat sarcastically: "You're paying all that money for a heater and they make you calibrate it?"
While the ability to recalibrate it is nice, I found it a royal pain, and ultimately my eheim's calibration just kept getting worse and worse to the point the heater just wouldn't turn on unless it was turned nearly all the way up. So yeah - i call it toast.
I have at least two LFS that still have green ebo-jager heaters in nearly all their tanks. I know as a kid, 15 years ago, those were already replaced by the blue-capped models. So how old are those green ones, 20, 25, 30 years old? And they still work? Why aren't heaters built like this anymore? My blue-top eheim is already dead. I'm sticking with aqueon pro's on my apex or on inkbird itc-308s for now.....The more I think about those green jagers - the more angry it makes me - as I think heaters have actually gone down in quality since then and it makes me sad....
LXXero , Its because today everything is made to last 2 years and then break , politics .... EU standard blah blah blah .... today's world is about quantity not quality unfortunately ... .
I'm also using an Inkbird ITC-308. I want something that will last, but won't break the bank. I've read the aqueon pro's split in half though which makes me nervous. However, that's where the temp controller comes into play. How's the pro been holding up for you?
They don't make ANYTHING like they used to. My great grandfather had hundreds of power tools he used and bought in the 50s and they worked right up to the day he passed away in 2005.
Very helpful! I have an aquarium heater, when I set it to 68, It heats to 75.. :/
So glad this video is one of the easiest how too's yall have made yet lol
I must be stupid, I've watched a few vids on this subject and still never got it, but finally with the bucket trick I understand!! Thx Randy
when you said ..right out the box you like to set the red calibration ring to its highest and lowest reading,now how does that contribute to the desired temp you want?
Thanks for the video I am calibrating my heater right now.
I've got one of these heaters and never really set the red pointer 'half way' between the two stop points. Good to know and thanks for the video! :)
UPDATE... (NOT your fault but..) After following your instruction on pre-setting the heater, it never shut off - or so the light indicated.. I kept an eye on the temperature which did not budge and after 14 hours of the indicator light being on steadily, I came to the conclusion that it was - as the old saying goes... Dead in the water! Why would such a great aquarium hobby manufacture make something so simple - difficult to work with? A simple dial works all the same. It's like Ehiem is worried the fish might try to tamper with the heaters... REALLY???
Mine is now in its new location btw... G tank!
@@willparsons32, the *Red Arrowhead* is just a Pointer.
The *Blue Dial* is the Temperature Setting.
Try fitting an Eheim 300W heater into a 5 gallon bucket. Doesn’t work. These heaters are double the length of most other heaters. I also found the Eheim suction cups to be some of the worst in the hobby. They get hard very quickly and start to fail, resulting in a heater laying on the substrate or hanging by the cord. I have three Eheim heaters and only one is accurate. Tried to recalibrate numerous times but they are jacked. Switched to Aqueon Pro.
Marineland Pro has tooooooooooooooons of issues with never shutting off and cooking fish. That failure is very consistent, if it fails 9/10 that's the failure that happens. I don't recommend any Marineland heaters. BOTH of the ones I've had failed, and the only reason I caught the temperature before my fish were injured was my OCD and working from home. Aqueon's Pro is awesome! So far this jager has been great.
Never trust suction cups unless they are silicon and then you have a 50/50 chance.
Perfect explaination. Thank you.
When you set this heater to a temperature to 72 this heater up to 78 degrees before it shut off. It is off by like 5 or 6 number so if buy one make sure you a thermometer. If you don't you may be in trouble
1) What's the *Wattage* of your Heater?
2) What's the *Gallon Capacity* of your Tank?
3) Is the Heater mounted *Vertically?*
Yes wat is watts
Great video! Seems like you're getting the hang of it real fast! Had these heaters for about 3 years now and I never knew about this! haha
Very helpful video, the instruction that came with the heater was terrible and I always wondered if I was doing it right. 👍🏻
These are the units I have selected for my 180 build!!! Thanks for making this video!
I can’t hardly move the red arrow. This one thing has confounded me.
Great video. Always wondered what these rings were. Excellent Randy!
Great info can you recommend a good 500 watt heater?
I have two of these heaters and I just could not get the calibration settings to work right so I ended up eye balling them in a bucket of water until I got the temp set to where I wanted it. It took an extra day, but that was all part of the planning I did before I set up my tank. Still, the temp was not as stable as I wanted so I replaced the one in my reef tank with a Neo-Therm. It works really well. I use the Jagers to heat my mix water and as a back up heater. In my Freshwater tanks I use Mainland Precision Digital heaters and they are great.
In your opinion which one do you like and trust better. Thanks
Neo Therm
How does the Finnex compare to the jager? I want something solid, but not expensive. I'm going to pair it with an inkbird itc-308 controller.
The stupid thing with this red dial is, and the reason most heaters dont have/need one is; once youve set a temp (on a standard kind of heater) and realised that it is undertemp by 2 degrees. all you have to do it overtemp the dial by 2 degrees and check again, if that is now perfect you can leave the heater to do its thing for the rest of its serviceable life. Having a calibrated needle pointer seems a bit pointeless as heaters are set and forget anyway, unless you continuously change the temp of your tank for some reason such as breeding.. However, having said this, the reason im looking at jager videos is because im buying one. My "superfish" one is too slow to react to a water change
can you please make a video on how to calibrate one of these heaters that is 20 degrees off?
When I tried to calibrate the temp just like you did those two plastic stoppers stopped me from going to the tank temp. I did all this in a bucket and the heater wouldn't stop at temp I wanted. The instruction book was no help. I agree with poster LXXero
What do you mean halfway point. The overall temperature setting or the little red , I see you put that little red tap on 87.
I have 2 of these in my tank. I always figure they were slightly off now o can fix the issue thanks ✅✅💯💯
Mine is too far out of calibration to adust :( I ended up with a external controller and i find it much more accurate.
It is super tricky
Old video but yeah, eheim makes a long lasting heater but they suck when it comes to calibration. I usually don't even bother setting the dial. The one I just bought the other week and set up a few days ago can't be dialed in properly. It has a limit how much you can adjust it and it seems it was off by about 12 degrees f. Adjusted it as far as it would go and the displayed setting is still off by 3-4 degrees.
I'm a little wary of saying bi-metallics are a "win", if only because they can get stuck on or off. I consider a temp controller a necessary fail-safe.
Anthony Ragan - Eheim now manufacture a heater with an electronically controlled thermostat, no bi-metallic strip, so with the use of this heater I would assume you can do away with the use & added security of a temp controller...
I've watched this video - thanks for sending it! Keep up the awesome work! (videos) :)
A how to topic: When using a manifold with your return pump how do you adjust the gate value to ensure that a protein skimmer, a Bio pellet reaction, Carbon reaction etc. is getting the appropriate amount of recommended water flow? I have more return pump then I need for my tank. Thus avoid the need for extra pumps.
You're too kind, hope you can use it.
Great video that explains how to do it but sadly the Eheim calibration is simply not very good or accurate. They are great heaters but have a very poor calibration.
I never rely on a heaters built in stat I all ways use a digital heater controllor as back up and run my controllor through a contactor wich powers my heaters so the controllor lasts longer because it only switching 50ma 😉
I set mine to 76 degrees and the water temp is 80-82.
My Eheim 100 watt heaters are running Hotter than they should. I tried to move the little red button but it does not budge. I have the blue dial set to 78 degree with the larger red tab on top of 78. The thermometer reads 84 degrees. I have two 100 watts sitting in my 75 gallon tank (no fish yet, Thank God) as I am working on the Nitrogen cycle. Hoping someone see this post as you all know the directions suck.
Hello, Please advise if the light on my Eheim Jager 3617 should stay on all the time indicating the heater is working good? Thanks.
The light will illuminate when the heater is heating only
@@BRStv Thanks for reaching out.
I just got this heater and when I plug it in, the light never turns on. Idk what I’m doing wrong
I have done everything the same an i cant get it to the right temp, dont know what im doing wrong.
Tanks ...
Anyone who buys these do yourselves a favor and buy the inkbird with it to amke sure it cuts on and off exactly when you need it to
Hi there thank you very much for the nice vedio ,I have a 240 L aquarium and it came with juwel internal filter 200 watts and since I live in Belgium and it is called most of the year it seems that the juwel is working lot so I am paying high bill of electricity, I am thinking to change it to a heater of 300 watt so that it heats speed with less electricity coast is that a correct idea? Which is really good to buy the eheim jager or the Fluval E and how many watts in each case I should take . I have african cichlif Malawi.
Please help
Thank you
Nasir
*BAD IDEA!*
Several Reasons why:
1) It's an Aquarium, *NOT* a Tea Kettle. Heaters are either *OFF* or *ON at Full Power.* There is no "Warm Setting".
Rapid rises in Temperature are detrimental to your Fish.
2) *150 Watts* is Sufficient for 240 L, especially if the Tank is in a heated room.
3) *EJ* Heaters are designed to be mounted *Vertically* to operate properly. A *300 Watt* Won't fit in your tank properly.
el gezouli abdul - If you think logically, the energy bill won't differ from using 300w instead of a 200w...The 300w will turn on for shorter periods but cost more in electric as you are burning an extra 100w, similarly the 200w heater will be on for longer periods, but burn 100w less for those periods...The energy consumed by both heaters whilst heating to a set temperature over a given period of time will be the same...
I don't understand. I think I have screwed up the temperature setting on mine by moving both the red ring and the blue ring. Tonight I noticed the water was really warm (low '80s), and now can't figure out how to adjust the temp back to, like, 77.
Out of the box the red calibration tab should be pretty close so only move it once you have the water stabilized, then see how far off it really is.
Wow, I never even knew. I've been twisting the blue and or red dial like an idiot for years. I better check that....
This heater are actually shit I had 5 calibrated them and they never stayed at the right temp
@@pleco101 Eheim jager is a thermocontrol heater, is always regulates the temperature that's why never show the exactly temperature but is a really good one heater.
Hey guys Iv had a 50 watt eheim heater in my 10 gallon tank for about 8 months now. I woke up this morning and the on indicator light isn’t on and my water feels colder than usual. Is there any way to fix this or is the heater broke?
I have set mine to 27 degree celsius but temperature raised to 29.5 degree celsius. I can move my red dial to 29 degree celsius. Cant move +0.5 what to do ? How to calibrate that?
Do you need a butter knife to move the red marker?
It can be hard to move, but in most cases, you should be able to move the red marker without any additional tools.
hi, can i fix this heater horizontal ?
The red adjusted won't even move that far. It made it 85F but will only let me move it to 81
If I've calibrated my tank for 76 and it stays on all the time and is heating my tank is it defective?
Hard to say. Could be that the heater is undersized for the tank volume or ambient room temp is trying to reach the set point, but is unable to.
Mine is set at 81 and I’m trying to move the red dial to 79 which is the actual temp but there’s no more room to move the red dial as it’s hitting on the side as far as it will go, how do I adjust this?
There is a limit to how much you can change the calibration of these heaters. If you've maxed out the calibration option, you may just have to set the heater's temp a degree above or below your actual goal temp to achieve your desired water temperature.
Damn, I didn't even know I could calibrate those. The bad side of never reading instructions
Dylan Nicolet I have one too and have literally only just found out due to this video ha!
still saving my ass 6 years later, i kept changing the blue ring to the temp i WANTED, not the temp it was at, and it just kept going higher.
I tried in a 5 gallon bucket the 150 watt and 200 watt. Both won't keep a steady temp, goes to 74 to 83 to 81 back to 75....I put a power head in the bucket for flow.
Any ideas what I'm doing wrong?
Also using a Zoo med digital thermometer
Thank you, I had both in there own separate bucket. Didn't add them together.
Ok thank you, I'll buy more. Was meaning to anyways. Ever hear of a powerhead heating water maybe? Or maybe my heaters are to many watts for a 5 gallon bucket?
Appreciate the help.
Doc Brown - If you think a 5 gallon bucket is too small & a power head is effecting the calibration, just calibrate in the main tank...Simples...
Oh, I was searching for Eminem heat, whoops.....
These work great but they have the stupidest adjustment I've ever seen. I have one on my main tank but I'm not buying another one.
I JUST bought this heater and the red light or any light doesn't come on. I am trying to understand how this brand new heater has NO light. And the glass is not broken.
Did you get an exchange or did you figure it out?
midorialexandros I returned the heater, but this time I didn’t try to figure it out. I I just stuck it in the water and plugged it in. Red light was on and my thermometer tells me the temperature is at 73, so luckily I don’t have to adjust anything. I like my Fuval heater for my other tank better.
Thank you very much .yes jager are to long
So hard to turn the knob. Needs 2 hands. And why isn't it calibrated out of the factory?
Yep - still don't get it. Water is 85.1, temp set at 76.
Anyone have the problem where the temperature doesn't change anymore on this heater?
My first temperature was set to 75. I raised it later to 78. Nothing changed. Raised it to 81. Still 75.
Possibly could be the age of the heater. We typically recommend swapping out heaters once a year to ensure they have less chance of failure that could result in a tank crash.
@@BRStv only started using it in mid February
@@AlexK-ew1mo That does sound pretty odd. If you purchased this from us, please give us a call or shoot us a quick email and one of our reefing experts can help you out right away!
Phone Hours:
8am - 6pm CT M-Th
9am - 4pm CT Friday
Main: 763-432-9691
Fax: 763-710-4777
support@bulkreefsupply.com
This is a horrible heater. Extremely long. Not a good size for the volume of water considering its size.
Why is my heater light on and won't go off
This heater is frustrating!!! The calibration dial is usless. What kind of heater needs a calibration dial?!?! Shouldn't it be accurate right away???
While we'd like to think that all of the gear we use on our reef tanks is perfect, the truth is that it's not. With the Eheim Jager heater being one of the least expensive heaters on the market, having to adjust calibration slightly is to be expected. We actually consider the ability to calibrate a feature!
Done everything and still only getting 78° and heaters CRANKED
If your heater is always on and your tank is still not getting up to the desired temperature, you may simply need a larger heater. Or, a second heater to supplement the first one.
I'm totally lost on the purpose of calibrating a heater. Whatever happened to "set it/forget it"? I'll stay with my durable and less expensive Aquatop heaters.
Recalibrated ONCE and it stopped working.
😡
I would avoid these heaters at all costs. I've had five Eheim Jager heaters since March of 2022 and within a few weeks or days they all got stuck in the on position at one time or another and I could not lower the temperatures or recalibrate them causing the tanks to overheat. Their customer service is awful and I'm not even going to bother trying to return them to the company as at best they would replace them with the same garbage, and I'll have to buy new ones anyway of another brand. Total waste of a couple hundred dollars.
Calibrating this thermometer is confusing and inaccurate
Will Parsons - Why..? Looks very straight forward to me....
@@SKYLANDBAK Cause you cant turn the red bit that much, it is stuck between like 6c. I have two in 2 separate tanks, one is set to 22c and one is set to 23c but it heats both tanks to 26c I cannot adjust it because I can only move the red arrow as far as 24c so it's always going to be 2c higher at best. I want both tanks to be about 23c but I dont want to set the heater to like 19-20c to get it do it right.
I've got two of these and they're awful. They never keep the right temp. I can set it to 78 and it got up to 83 and then down to 75. So hot and cold all day and night. Seriously stresses the fish. These things are junk.
dude my heater is 5 degrees off even after calibrating it. ehiem fuckin SUCKS