Outdoor Chiller?

[Crumbs]

I am looking for a chiller that I can install outside of my house. Reason being that it is to chill a 1000 gal pond down to below 65 deg.

There is no sense having the chiller inside the house because it will be battling its self too much if it is in the same room.

The other catch is that I am located in Canada and although we have bin having mild winters the temp outside can reach -20 deg.

I would be building a shelter for the chiller as well.

Is there a product out there that can meet my requirements or any recommendations?

Thanks in advance,
Chris