http://www.birdwatching-bliss.com/bird-bath-heater.html
I use the farm innovators one that it shows on this site. I don't notice a huge spike in my electric bill, however being in Missouri my temps go back and forth. So it wouldn't have to run as much as it would have to in Canada.
I watched a you tube video about doing this last winter. . the lady put salt water inside a 2 liter bottle and then placed the sealed bottle in the water bucket. It didn't work for her :idunno
But I've never tried it myself.
I'm using a big round water bowl for my Cayuga ducks for drinking water in their pen, bird bath heater in it and just put a board over half with a heavy rock on top.
Today I let them out and give them some bath water even though it was only 32 degrees. . they don't care how cold it is :lol:
They...
Last year I used a floating stock tank heater in my pool. It worked great as far as keeping it thawed. . but draining it and refilling it is the problem.
This winter I've opted to cover the big pool. I use a bird bath heater in a cement mixing tub, partially covered just enough so they can...