| Capacity (pan count) | How much the cabinet holds, in sheet or steam-table pans, and whether it is full-size or half-size. | Size to your peak volume. An empty cabinet wastes energy heating air; an overfull one blocks the airflow that keeps temperature even. |
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| Heated vs humidified | Whether the cabinet holds with dry heat only or adds moisture, and whether the humidity is adjustable. | Match it to the menu. Crisp foods want dry heat, moist foods want humidity, and a mixed menu wants adjustable so one cabinet does both. |
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| Temperature range & recovery | The setpoint band the cabinet can hold, and how fast it returns to temperature after the door opens. | Recovery matters most in busy service. A slow-recovering cabinet sags below safe temperature during a rush of door openings. |
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| Insulated vs non-insulated | Whether the shell is insulated, which drives temperature stability, recovery, running cost and exterior heat. | Insulated holds steadier, recovers faster, runs cheaper and stays cooler to touch. Non-insulated is cheaper up front but works the element harder. |
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| Mobile vs stationary | Whether the unit rides on casters to be moved and transported, or is installed in a fixed position. | For mobile use, check caster quality and brakes and a cord and plug rated for the moves you will actually make, not just occasional repositioning. |
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| Controls (analog vs digital) | How you set and monitor temperature and humidity: a simple thermostat dial or a digital readout with timers. | Digital gives repeatable holds and easier HACCP logging. Analog is simpler and cheaper but leaves more to the operator to judge and record. |
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| Door type | Solid vs clear (glass) doors, and single full-height vs Dutch (split half) doors. | Clear doors let staff check product without opening. Dutch doors cut heat loss by opening only half the cabinet at a time during service. |
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| Footprint & voltage | The floor space the cabinet needs and the electrical supply it draws: 120V vs 208/240V and the circuit amperage. | Confirm the circuit before you buy. A cabinet on the wrong voltage or an undersized breaker either trips or never reaches holding temperature. |
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