In the same way that a double walled tumbler keeps drinks hot or cold one of the most effective ways electricity free ways to keep water from freezing is a diy double walled tank.
How to keep a water tank from freezing without electricity.
Even if you can t bury your water tank below ground there are still ways you can help prevent freezing of your emergency water when it s above ground.
If you re using foam be careful to seal it off with dirt or soil so that your horse can t chew on it these plastics can be very harmful if your horse ingests them.
Placing one bucket inside of another to slow the escape of heat through the sides of the tank or bucket.
Ensuring your tank has maximum exposure to the sun.
One option is to buy a submersible electric water heater which delivers current from a heating element to a conductive material like steel thereby heating the water around it to prevent ice from forming.
While pricier than simply wrapping your tank in insulating material a water heater is a surefire way to prevent your tanks from freezing up.
Place your trough inside a hole in the ground or in an old stock tank then insulate the gaps with straw hay polystyrene foam or manure.
Use expanding spray foam for extra insulation.
This won t keep the cold away from the water completely but it could keep the edge off in moderate climates.
Make this method more effective by.