Completely agree waterdog. I have a 1.5hp submersible pump that runs 12 hours a day from a well in the summer and 24 hours a day when it gets below freezing. I have yet to lose (due to cold) or incur frostbite in any type of Whistling Duck, Ringed Teal or any other cold intolerant species. Even when it occasionally gets down in the single digits I dont have a problem as long as the water is running because I believe that well water is somewhere around 55 Degrees and if they get cold they just get in the water. Now -35, I dont even want to think about that...