Stealth Submersible Heater Reliabilty Poll

  • We are currently upgrading MFK. thanks! -neo

How long your heater has been/was being used...

  • Less than 6 months, still working

    Votes: 21 20.4%
  • Less than 6 months, broke around this time

    Votes: 9 8.7%
  • Up to 1 year, still working

    Votes: 33 32.0%
  • Up to 1 year, broke around this time

    Votes: 7 6.8%
  • Up to 2 years, still working

    Votes: 18 17.5%
  • Up to 2 year, broke around this time

    Votes: 4 3.9%
  • Up to 3 years, still working

    Votes: 8 7.8%
  • Up to 3 years, broke around this time

    Votes: 1 1.0%
  • Up to 4 years, still working

    Votes: 7 6.8%
  • Up to 4 years, broke around this time

    Votes: 0 0.0%
  • Up to 5 years, still working

    Votes: 4 3.9%
  • Up to 5 years, broke around this time

    Votes: 1 1.0%

  • Total voters
    103
I have to say that I haven't found them to do such a great job at regulating the temp. I have two in two different tanks. One in the 40 breeder (which has a glass top) as well one I in my 72g (which has no top) both seem to fluctuate. I heard great things and changed from the rena smart heaters to these (traded them for an old hood, which I don't even use)

I found the rena submerseables to do a much better job a maintaining a constant temp.
 
I wonder how often user error causes a heater (or other equipment) to fail and then that user complains of the quality of the item…

I wonder how often environment/usage affects the products performance and then that user complains of poor quality of the item…

I have one aquarium that started fluctuating temperature this summer. I quickly noticed the AC vent blows directly on the tank. Direct sunlight can also impact temperature. I wonder how often are such things overlooked.

It makes sense to me that using a heater that is too large for the aquarium would cause the heater to click on and click off far more often then necessary. It then makes sense that such a heaters on/off control would wear out prematurely…

As even after the heating element is turned off, a heater still retains hot for a bit, it makes sense using an oversized heater would cause the tank to continue heating up after the heater turns off thus making the temperature fluctuate.

It is suggested to put the heater in the water for a bit to allow the thermostat adjust before plugging the heater in… Not doing so is bound to affect the performance…

Stealth heaters claim once functioning they can be removed from water and will automatically turn off. I have not put this quality to the test but I have heard many state they do not turn off as suggested. It is very simple to work around this and I seriously wonder what percentage of the failures are related to this particular malfunction.
 
I'm running 5 of them of various wattages, the oldest of which have been going for 2 years or so now. Never had a problem with any of them.
 
I had 2 Stealth heaters, in one tank the plastic bubbled up and cracked without it running dry and poisoned the water, other one continues to work til this day.
 
all of my tanks are currently running stealths...
1x 125 (2 stealths)
3x 75 (1 each)
1x 29 (1)

i have NEVER had a problem with any of my stealth heaters... they keep temp constant and are reliable :D ive had most of my stealths for over 2 years now
 
I have 8 running currently.I had one that failed and shutoff and would not come back on. Other than that knock on wood no issues.
 
nc_nutcase;3281810; said:
I wonder how often user error causes a heater (or other equipment) to fail and then that user complains of the quality of the item…

I wonder how often environment/usage affects the products performance and then that user complains of poor quality of the item…

I have one aquarium that started fluctuating temperature this summer. I quickly noticed the AC vent blows directly on the tank. Direct sunlight can also impact temperature. I wonder how often are such things overlooked.

It makes sense to me that using a heater that is too large for the aquarium would cause the heater to click on and click off far more often then necessary. It then makes sense that such a heaters on/off control would wear out prematurely…

As even after the heating element is turned off, a heater still retains hot for a bit, it makes sense using an oversized heater would cause the tank to continue heating up after the heater turns off thus making the temperature fluctuate.

It is suggested to put the heater in the water for a bit to allow the thermostat adjust before plugging the heater in… Not doing so is bound to affect the performance…

Stealth heaters claim once functioning they can be removed from water and will automatically turn off. I have not put this quality to the test but I have heard many state they do not turn off as suggested. It is very simple to work around this and I seriously wonder what percentage of the failures are related to this particular malfunction.
Mine get exposed to air (whole unit left on) every water change... No issues yet ..
 
I only have one, a 200w, worked great for 3 years in my 55 gallon, its actually in my 10 gallon now. working great. I have a digital thermo in the tank, I thought for sure the large heater would over heat it by not shutting off quick enough or not cooling fast enough, but its kept the tank at a steady 79 for months. Will definetly buy another one the appropriate size when I put the 55 back together. I lost a lot of glass heaters over the years from oscars nailing them when the light came on. Even when those cracked I never lost a fish though.
 
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