Compressor, coils, expansion — why heat leaves the box and bills climb when coils are filthy
Kitchen engineering for adults: refrigerant cycles from compressor to condenser coils (heat dumps into your kitchen), through an expansion device, into cold evaporator coils inside — heat is pumped out, not 'cold pumped in.' Learn why dusty rear coils raise bills, why door seals matter, and safe cleaning habits. Smartest-person energy literacy.
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Compressor pushes refrigerant. Condenser coils (back/bottom) release heat into the room. Expansion drops pressure; evaporator coils inside absorb heat from your food air.
Fan circulates. Frost-free units add a defrost cycle. Heat left the box — that's the whole trick.
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