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Hydor Theo Heater
September 16, 2010
4:35 pm
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Daddyfish
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August 30, 2010
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Hi Guys,

It maybe just the fact that I've never had experience of a fish tank heater or it may be a problem with the heater itself, but the lite comes on and off. Is it supposed to do this or stay on constantly?

Can the heater be covered from site or will it effect it's heating ability? At the moment I have it hidden behind bark, but the water flows over the top and around the sides. It's set to 27 degrees, but I'm only getting near that if the temp gauge is right by it, the rest of the tank is only reaching mid-high 25 degrees.

September 16, 2010
6:40 pm
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MatsP
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August 23, 2010
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The light on a heater usually indicates that the heater is "on" - that is that it's heating at that point.

The light comes off when the heater thinks the water is the right temperature.

Most heaters aren't that accurate at actually giving the water temperature matching their setting, so if you want 27'C, you may have to set it at 28'C. It also helps if there is good circulation at the point where the heater is located.

--
Mats

September 16, 2010
6:51 pm
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Daddyfish
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As always, your the man Mats!

That's actually what I've been thinking, so you've put my mind at rest! /wink.gif" style="vertical-align:middle" emoid=";)" border="0" alt="wink.gif" />

September 16, 2010
6:57 pm
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Eyrie
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Agree with MatsP. It's better to have the heater in a high flow area to ensure an even temperature, so if the bark is blocking the current then I'd look to either aim the filter outlet behind the bark or alternatively move the bark.

At the moment the heater is warming the water around it, which isn't circulating properly and so could be a little warmer than elsewhere which will trick the heater into switching off earlier than it should.

I'd also recommend using a thermometer at the opposite end of the tank so that you can check that the whole tank is at the correct temperature.

Mature, sensible signature required for responsible position. Good prospects for the right candidate. Apply within.
September 16, 2010
10:41 pm
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Plaamoo
Bellingham, Washington U.S.A.
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I don't think i've ever had a heater that was accurate to it's setting. The new eheim/jager heaters have an interesting feature. Once you get the desired temp set in the tank, as measured by an accurated thermometer, you pull out a little button and rotate the dial to match the temp.

September 17, 2010
7:15 am
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Daddyfish
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QUOTE (Eyrie @ Sep 16 2010, 07:40 PM) < {POST_SNAPBACK}>
I'd also recommend using a thermometer at the opposite end of the tank so that you can check that the whole tank is at the correct temperature.


Hi Eyrie, that's what I've been doing and that's why I was concerned. Having got up this morning the temp seems to have caught up throughout the tank. I did lower the bark slightly so the water would flow over it more. I'll see how it goes today, but if it does stay stable now it's the heater is actually very accurate.

Cheers guys…great help as always! /thumbs_up.gif" style="vertical-align:middle" emoid=":thumbsup:" border="0" alt="thumbs_up.gif" />

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