i have an autowater for my chickens and rabbits, however it always is getting frozen! anyone know how i can keep the water unfrozen in canadian winters, (up to -20˚C -rarely-)? i won't be able to check on the waterer for up to two weeks at a time sometimes, so something that lasts? and for the chicken waterer here https://www.backyardchickens.com/a/automatic-watering-system-no-hose-attached does anyone know if i put a heater in the bin and wrapped the tubes with heated pads, would the water stay thawed in the winter?? thanks!! P.S. they are doing great so far and i have had plenty of babies! im so proud of them!