Just what I do when using a water heater.....
Make sure it is secure in the dish it is being used in. The drop in heater I bought has a stiff cord so I secured just above the dish to the wall. I made great attempts to knock it out of the dish like a chicken might. Once satisfied it could not be knocked out I set it on a thick piece of flagstone in the dish to keep it from contacting the plastic.
I also check the water every day multiple times a day to make sure it is at least 2" below the top of the water.
That is in the coop with professionally run electric that is in dust proof boxes with covers.
The other coop....... I haul water to and dump dishes at night or bring in to thaw.
I won't use outdoor extension cords unless both ends can be inside a structure and secured.
I think in the burned down coop thread the OP had an issue where the dish may also have been run dry.
Whatever method is used being careful is a must. Hauling water can result in a serious fall and running a heater carries other risks.
By the way the dish I used the heater in is a 6 gallon open top waterer from a farm store.
It is the same material as my favorite smaller dishes. I have been pouring hot water over them turned upside down for many years to release ice. Never had one crack from it.
Edited to add that I have no experience with the kind @FlyingNunFarm shows.
The $35 dish for dogs failed within a few days to a few weeks. After 4 of them I gave up.
Make sure it is secure in the dish it is being used in. The drop in heater I bought has a stiff cord so I secured just above the dish to the wall. I made great attempts to knock it out of the dish like a chicken might. Once satisfied it could not be knocked out I set it on a thick piece of flagstone in the dish to keep it from contacting the plastic.
I also check the water every day multiple times a day to make sure it is at least 2" below the top of the water.
That is in the coop with professionally run electric that is in dust proof boxes with covers.
The other coop....... I haul water to and dump dishes at night or bring in to thaw.
I won't use outdoor extension cords unless both ends can be inside a structure and secured.
I think in the burned down coop thread the OP had an issue where the dish may also have been run dry.
Whatever method is used being careful is a must. Hauling water can result in a serious fall and running a heater carries other risks.
By the way the dish I used the heater in is a 6 gallon open top waterer from a farm store.
It is the same material as my favorite smaller dishes. I have been pouring hot water over them turned upside down for many years to release ice. Never had one crack from it.
Edited to add that I have no experience with the kind @FlyingNunFarm shows.
The $35 dish for dogs failed within a few days to a few weeks. After 4 of them I gave up.
