1st I hate all heaters.But I'm forced to use them and all my tanks (16)have ebos from green models to blue tops.Every other brand has failed for me.never one ebo EVER they dont seem to be calibrated right but thats not what I'm conserned about them failing in the on posistion that is what keeps me from buying other models.
BTW what ever you buy dont get the rena cal ablolute junk.