I have a 5 gallon bucket with the nipples on the side.  Sunday morning it got down to about 27 here in Upstate South Carolina and the water had a thin layer of ice on top which wasn't too bad but I checked the nipples and they were frozen.  So I went to Walmart and got an aquarium submersible water heater.
https://www.walmart.com/ip/Tetra-Submersible-Aquarium-Tank-Heater-10-30-Gallon/10291809
Last night the whole bucket had an orange glow from the little light on it letting you know it was on. It had a suction cup to hold it in place. I put it down at the bottom next to were the nipples are. Once the water reaches a certain temp, the heater turns off.
	
		
			
		
		
	
				
			https://www.walmart.com/ip/Tetra-Submersible-Aquarium-Tank-Heater-10-30-Gallon/10291809
Last night the whole bucket had an orange glow from the little light on it letting you know it was on. It had a suction cup to hold it in place. I put it down at the bottom next to were the nipples are. Once the water reaches a certain temp, the heater turns off.
 
	 
 
		 
 
		 
			
		
		
		
	
	
			
		 
 
		 If you are interested you can get the plan on The Chicken Chick's web site. So it won't tip over I keep the hanger attached in case some hens decide to get rowdy!
 If you are interested you can get the plan on The Chicken Chick's web site. So it won't tip over I keep the hanger attached in case some hens decide to get rowdy!  
		 
 
		 
			
		
		
		
	
	
			
		
 
 
		 
 
		 
			 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		