Thread: Just wondering... on setting up new heaters
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  #23  
Old 03-16-2013, 02:54 AM
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I pre-set/calibrate all my Eheim heaters in a bucket with a trusted thermometer and a powerhead
I set them to 81F just in case the controller leaves them on for some stupid reason, and I set my controller for 79F so the heaters will always come on
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