Maybe in Downeast Maine it doesn't get as cold as up North (I have relatives up there). From what I've gathered, if it gets much colder than -15F, the horizontal nipples with a de-icer in the bucket might freeze. Perhaps some sort of heat source from underneath the bucket, so it rises up to thaw the nipples. But no worries for now...summer is coming! Some folks switch between a nipple bucket in warmer weather and a traditional metal waterer with the heated stand in winter. Even if you do that, you'll have clean water for many months of the year.