Can I use an aquarium heater to keep duck water unfrozen?

I'm pretty sure there is a thread on this subject already. If I remember there are conflicting opinions.

 

I would not dare to use one. They are made out of glass and can crack or break. Better off buying a bucket heater.

 

Dont dare use the glass ones, but they make great ones out of stainless steel That work perfectly.With themostat outside water DRS FOSTER AND SMITH CATALOG

 

i would NOT used it might break and duck can get cut on the glass if they drank it.
due to cold
or lack of water due water drop
people have heater bucket
or heater dog water bowl
or cookie tin heater with a pan on top of it but they have it in coop

 

still wont used it will break if the water drop be low the water level

 

I think the biggest problem is that they are designed to work at room temp and only have to raise the aquarium water temp by a little bit. They are just not very powerful. A cheap bucket heater may be all you need. Or use a heated dog bowl and simply put their water bucket into it.

 

I've purchased mine at the feed store 4 years ago and it runs about 6 months per year in my water fountain to keep the water open for the birds. I did pay about 10 dollars for it. This is a picture of it I found on the web.

It does look like they are not making this one anymore, but there are others out there.