Temp Reading On Heater Higher

[Spurry]

Hi I was wondering if it's normal to have the heater scale saying a higher heat than the thermometer reads
I just got a new 150w branded heater, heater say 26c and thermometer says 22c

Or is it faulty

 

[mattyeatsmatts]

if the heater is positioned vertically the rising warm water around the heater will trick it into thinking the whole tank is that temp. Usually people place the heater in a 45° direction or say 2 o'clock.

 

[Termato]

Hi I was wondering if it's normal to have the heater scale saying a higher heat than the thermometer reads
I just got a new 150w branded heater, heater say 26c and thermometer says 22c

Or is it faulty

I agree with matt.

Keep in mind the water at the top is warmer than the water at the bottom.

That is quite a bit to be off by...do you have any other thermometers to test this with?

You could test different waters with diff thermometers. If not I would consider getting a $1.50 one at wal mart to test and see what the problem is. It shouldn't be that far off though.

That temp difference can make a fish live of die in hotter or colder temps. I would look further into this issue.

Good luck!

 

[Spurry]

if the heater is positioned vertically the rising warm water around the heater will trick it into thinking the whole tank is that temp. Usually people place the heater in a 45° direction or say 2 o'clock.

Hmm you can see the position of the heater here

I've moved the Thermometer closer to the heater just to see if it picks up, I always thought you put the thermometer to the Opposite side

My 200w heater in my 180lts says 24 and thermometer says about 22 ish

 

[Spurry]

I agree with matt.

That is quite a bit to be off by...do you have any other thermometers to test this with?

It's the same one I use in the big tank and that is just -1 out and it's at the opposite side so I no it works


Maybe it's just the scale on the other heater ?

 

[Mikaila31]

The heater thermostat is not meant to be a thermometer. Thermostats are never exact. I use a number of heaters that have a simple +/- dial and don't say anything about temp. I've always kept my heaters vertical and never had an issue. As long as you have proper circulation there should not be a difference.

 

[Spurry]

The heater thermostat is not meant to be a thermometer. Thermostats are never exact. I use a number of heaters that have a simple +/- dial and don't say anything about temp. I've always kept my heaters vertical and never had an issue. As long as you have proper circulation there should not be a difference.

Ok so the scale is just a guide and needs tweaking my circulation is 800lts per hour
So that's 14x less media so I think that bits ok

Thanks I will just keep a eye on it for the next few days