I was thinking about purchasing the K&H heated waterer until I read the most common "con" was trying to clean the interior of the container.
I live in high desert conditions and with this being my first rodeo raising chickens, I decided to go with what a reviewer said regarding the K&H heated waterer...he said, "Just get a heated dog water bowl!" So, I did...it is specifically designed for large, outside dogs...and my DH has made a small table for it to sit on so the girls won't get the water too dirty. Bonus...since its a bowl...it will be easier for me to clean outside in the frigid temps.
I have already gone through triple-digit summer days with them and they all survived all of the fanatical things I had to do so they wouldn't get heat stroke and now I'm battening down the hatches for the cruel winter that's approaching. Typical temps in the winter here can get to zero degrees and colder with wind chills that would freeze your fingers, toes, and ears off. All of my girls are both heat & cold tolerant but that doesn't mean they are heat & cold "proof".
BTW...I have no electricity out to my coop/run so we are trying an unconventional way of powering the bowl. We have on hand a Yeti1000 power pack that DH is going to be placing into a cooler. The Yeti1000 will generate a little heat which will keep it in its operational range. We also purchased the solar panel that compliments the power pack so that it will be on a constant recharge. Typically, we use the power pack when we go travel trailing but since over the winter, that's moot...we thought why not use it for the girls over winter. Don't know if it will be a successful endeavor but we will soon know. If it works, I think there will be a lot of people on this forum who don't have electricity in their coops/runs that may benefit from our rough science experiment
Nonetheless, I am still interested in hearing about experiences others have had with their heated waterers.
Thanks for the post!