Allied Precision 1B 1 qt Plastic Heated Pet Bowl
This seems like a very nice, well made heated bowl. However, when purchasing, the description does not tell you that you must plug in at an out-door electric outlet, as it is not supposed to be used with an extension cord. I have no outlets on the outside of my house and was planning to attach to an extension cord and run through a window to the inside. I therefore returned the item.
Allied Precision 1B 1 qt Plastic Heated Pet Bowl: