Bird Bath De-icer

I'm not sure I'd like to have a long electrical cord snaking from my porch to a birdbath, but this certainly seems to be a good idea. Every winter I empty my birdbath and put the basin on its side to keep the cement from freezing and cracking. I've used all sorts of substitutes; metal or heavy plastic pans. But sometimes it's hard to empty and refill them; they can freeze to the ground. I worry about the electrical cord needed for this or I'd be ordering one today!

Pros: Keeps birds' water from freezing in the winter

Cons: Is the electric safe?

If you want to attract birds fresh, open water is the key.

Pros: great product

Cons: not cheap