BV,
Good idea for boats, probably a bad idea for ponds. Reason being that the
propeller idea works by bringing warmer water to the surface. In a pond this
would lead to unwanted cooling of the bottom of the pond. Many keep a hole
open in their ponds by using a simple aquarium air stone and air pump. $15
at any pet store selling aquarium supplies. Doesn't move the water around a
whole lot, but will keep a hole open in all but the coldest locals. Cheap
and simple too.
Paul

"BenignVanilla" wrote in
message ...
Some people in my area, have electric propellers attached to their docks
to
keep ice from forming around their docks and heaving the dock up into the
air. A friend of mine installed his this year, and says he has no ice
around
his dock, and his neighbors do. The prop keeps the water moving, and so
keeps it from freezing.

I am thinking we extrapolate this idea to a pond. A small 'lectric motor
driving a prop. Attach the hole mess to a styrofoam donut, with the prop
in
the donut hole. Seems it would be cheap to run, and could be effective.
Hmm,
maybe I need to experiement with this, while it is cold.

Anyone ever used/done something like this?

--
BenignVanilla
tibetanbeefgarden.com
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