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Yes, this is normal. It has to be left open for airflow, otherwise the compressor and components will overheat.
Sorry, there was a problem. Please try again later.Yes, that is normal. I have one from another manufacturer that is the same. I have it up against a wall so there's probably only an inch or two - same thing with my other one, and I have had that one in service for over 6 years and it is still working.
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