Not a Novakool
but this fridge from NorCold does use a DC powered danFoss compressor, looks very nice for the price $1297
might not be as well insulated ??

7.0 cu. ft. Refrigerator 2 Door Left Swing
Freezer - 1.7 cu. ft.
Refrigerator - 5.3 cu. ft.
Now with danfoss compressor
Top-of-the-line, two door model
Contemporary flush mount styling
Self-ventilated design for easier integration
Exceptionally quiet, hermetically-sealed compressor
Drip tray drain hose
12-volt fan aids airflow across condenser and compressor for improved cooling
Reversible doors
Black exterior trim
7 CuFt DC NorCold