Mounting chiller outdoors

[mark]

Isn't a chiller basically the same as a fridge and can they be run outside safely below freezing? Back home the old man would always shut down the beer fridge in the carport over winter.

For my new place, have been thinking about running some tubing loops outside through the basement wall buried a few feet deep (ideally deeper). They would be hooked to the sump on a separate loop. Sort of a heat pump idea.