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Old 11-18-2007, 08:30 PM
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Would think if heater wattage was enough for volume, with any sort of flow, system would eventually reach a equilibrium.

btw, I have a 300w heater in sump, ~200g system volume, ~1000gph through sump and heater cycles.
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Old 11-18-2007, 08:37 PM
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Default heater

I keep a double computer fan on all the time to keep temp down and keep heater going to keep temp up.Do you have a fan or chiller going all the time to
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Old 11-18-2007, 08:52 PM
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Having a fan on all the time probably explains why the heater is always on.

I'm running a controller for both fans and heater. One won't be on if the other is.
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Old 11-18-2007, 11:24 PM
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Default sump heater

I have a reefkeeper which controls my heat with a 500w titanium heater. The heater is set in the skimmer compartment of my sump. I have a bypass style refugium. I took the temp sensor and set it in each compartment of the sump and also in the main tank. It showed a temperature difference of 0.1 degrees so I'm thinking nothing to worry about.
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Old 11-19-2007, 01:18 AM
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Thanks very much for your replies
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Old 11-20-2007, 03:26 PM
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I have 2 heaters in my sump and I don't think they have ever turned on

Could you try putting them in your overflow maybe that will work better
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Old 11-20-2007, 11:23 PM
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A person told me to set the heater a couple degrees below my low temp.(76) This way the heater safeguards against the temp going so low it kills livestock.

Last edited by Salmon King; 11-20-2007 at 11:27 PM. Reason: temp
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Old 11-20-2007, 11:24 PM
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A person told me to set the heater a couple degrees below my low temp.(76) This way the heater safeguards against the temp going so low it kills livestock.
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