Heater overheated

[Reef.]

In my case, I use two Eheim heaters and get them calibrated to my preferred temp range 78 - 78.5. Then I make one my primary heater, and second one becomes a fail safe (only used if primary heater fails) both are them monitored by my Apex. I also tend to buy wattage, which is less than recommended as kind of another fail safe. Works great for me.

any tips on calibrating the Eheim heater? I tried but gave up.

 

[Mjl714]

any tips on calibrating the Eheim heater? I tried but gave up.

No tips, patience. I am willing to accept a range of 3/4 of a degree. If you want it tighter (especially for smaller tanks) than that you’ll need your Apex or similar controller.

Since I use two heaters, I watch each one separately to see which one performs more to my liking, and it is designated as the primary heater.

Here’s my 75 gal for the last day:

 

[Uncle99]

any tips on calibrating the Eheim heater? I tried but gave up.

You calibrate using a known source or sources averaged.
So once your known source says the temp you want to keep, then move the red pointer to that mark.

I prefer to always use digital heaters rather than contact types in addition to a controller

The Fluval E-Series is an example and also will cut power at 3 degrees above setting or if removed from water.

 

[vetteguy53081]

Leave them. There is always that slim chance as temp remains normal constant that it may bud again

 

[Mjl714]

You calibrate using a known source or sources averaged.
So once your known source says the temp you want to keep, then move the red pointer to that mark.

I prefer to always use digital heaters rather than contact types in addition to a controller

The Fluval E-Series is an example and also will cut power at 3 degrees above setting or if removed from water.

Oh ya, I use my Hanna digital thermometer to validate all heater testing.

 

[Reef.]

You calibrate using a known source or sources averaged.
So once your known source says the temp you want to keep, then move the red pointer to that mark.

I prefer to always use digital heaters rather than contact types in addition to a controller

The Fluval E-Series is an example and also will cut power at 3 degrees above setting or if removed from water.

still confused...If I put the heater in a bucket set to 20c but it heats the water to say 24c, what do I do with the dials? turn both to 24c?

was looking at the Fluval E heaters but the 100w one Is far too long for my tank, two 50w would probably be too tight in the space I have available for the heaters.

Any experience of the Aquael Ultra Heater? nearly half the size.

​

 

[Mjl714]

still confused...If I put the heater in a bucket set to 20c but it heats the water to say 24c, what do I do with the dials? turn both to 24c?

was looking at the Fluval E heaters but the 100w one Is far too long for my tank, two 50w would probably be too tight in the space I have available for the heaters.

Any experience of the Aquael Ultra Heater? nearly half the size.

​

Turn the blue dial down, counter clockwise.

 

[Reef.]

Turn the blue dial down, counter clockwise.

the Red one is the calibration dial, so I turn that to the 24c?

 

[Mjl714]

Eheim instructs you to first turn the red dial to the current temp, 24c in your example, then adjust the blue dial to your preferred temp, 20c.

 

[Uncle99]

still confused...If I put the heater in a bucket set to 20c but it heats the water to say 24c, what do I do with the dials? turn both to 24c?

was looking at the Fluval E heaters but the 100w one Is far too long for my tank, two 50w would probably be too tight in the space I have available for the heaters.

Any experience of the Aquael Ultra Heater? nearly half the size.

​

Yup, 24 if that’s what your tests show, then turn the red pointer to 24. Calibrated.

I really did not find the Jager that accurate. The on/off contact types can swing a bit.

 

[redeyejedi]

Wow, 150w is a lot for 32gallon. I use a 150w on my 75gal, which also has a 15 gallon refugium. Once you get this corrected, I’d go smaller on the heater, it’ll give you more wiggle room.

Got me panicking about my 500w now. My tank would be boiling. Luckily mine monitors temp and will shut of if it goes higher. However ill prob get a backup cutoff swith.

 

[Mjl714]

Got me panicking about my 500w now. My tank would be boiling. Luckily mine monitors temp and will shut of if it goes higher. However ill prob get a backup cutoff swith.

I live in Illinois, and so our winter indoor house temp is about 69 degrees, I just want enough heater to get the amount of water I have to 78 degrees, any more power is a waste and potential overheating risk.

 

[Mjl714]

still confused...If I put the heater in a bucket set to 20c but it heats the water to say 24c, what do I do with the dials? turn both to 24c?

was looking at the Fluval E heaters but the 100w one Is far too long for my tank, two 50w would probably be too tight in the space I have available for the heaters.

Any experience of the Aquael Ultra Heater? nearly half the size.

​

Sorry, no experience with “Aquael Ultra Heater.”

 

[sam2110]

I always have a brand new cheap heater in the cupboard for emergency. A seneye reef monitor will alert you of High temperature directly to your phone, I have my heater connected to a smart plug socket so I can switch it off from anywhere in the world, should the worst happen.

 

[Baldguy]

A chiller is good insurance against your heaters messing up as well as your home AC going out when it's hot out. That's what happened to me. Tank got up to about 94 and lost almost everything.

 

[LanaDelNeighh]

Some stuff might survive. Sorry to hear about the failure.

Obviously too late for this situation but for anyone reading. Please backup your heater with a temp controller. Inkbirds can be had for 30-40 bucks on amazon. Also consider your heater disposable and replace every 1-2 years.

After reading this, grabbed 2 inkbirds off of amazon, one for each tank. Same day delivery! Thanks for the advice!

 

[Reef.]

After reading this, grabbed 2 inkbirds off of amazon, one for each tank. Same day delivery! Thanks for the advice!

tip when setting up, if you struggle, if your Wi-fi has both 2.4ghz and 5, turn the 5 off, not sure which model you have but some will only connect to the 2.4ghz and only if the 5 is turned off.

 

[LanaDelNeighh]

tip when setting up, if you struggle, if your Wi-fi has both 2.4ghz and 5, turn the 5 off, not sure which model you have but some will only connect to the 2.4ghz and only if the 5 is turned off.

I didn't get the wifi one.... now I wish I would have. Got the ITC-306T.

 

[Reef.]

I didn't get the wifi one.... now I wish I would have. Got the ITC-306T.

if it’s the one I’m thinking off, then the plus of that model is, you can set the variance to .1c rather than .3c on the 306a model.

Just make sure you got it with the water proof probe.

 

[Uncle99]

I didn't get the wifi one.... now I wish I would have. Got the ITC-306T.

Controllers are cheap but can save a fortune!
Good move, excellent upgrade.