Just wondering... on setting up new heaters

[ChefFish]

Originally Posted by The Grizz

Had a few brand new heater that would never shut off & a few that where out by more then 5*. Thinking of trying the Oddyesea Digital or the Fluval E series digital to see if there any better.

I have 2 of the E300's and love them. I haven't had a problem yet and the one in my main tank is only 0.5 different from my thermometer (digital as well).

[gregzz4]

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