Thermoelectric Cool Box Dometic TropiCool Classic TCX 21 — 21 L, 220–240 V, 41 dB, Black/Silver

The Dometic TropiCool TCX 21 is a compact thermoelectric cooler with a 21 L capacity, designed for portable use in cars, boats and outdoor activities. It combines a modern soft-touch control panel and digital display with efficient electronics that enable cooling down to 27 °C below ambient temperature and an optional heating mode up to +65 °C. The unit includes safety features for DC and AC connections and a memory function that retains user settings when powered off.

Advantages

Energy-efficient operation is achieved through an intelligent power-save circuit, reducing battery drain during mobile use. The cooler is versatile and can operate on AC mains, vehicle cigar lighter sockets or DC power sources, and it functions even when tilted. A wear-resistant fan provides internal ventilation for stable temperature distribution, while soft-touch controls and a digital display offer precise and convenient temperature adjustment.

Suitable for

• Keeping food and beverages cool on road trips or in caravans
• Use on boats and outdoor excursions where mains power may be limited
• Situations that require both cooling and occasional heating of contents
• Portable cooling for picnics, tailgating or camping

When it may not be suitable

As a thermoelectric cooler, the TCX 21 is not intended to reach or maintain the same low temperatures as compressor refrigerators in very hot ambient conditions or for long-term freezing. Performance depends on ambient temperature and ventilation; in extreme heat its cooling difference relative to ambient may be reduced.

Key specifications

• Capacity: 21 L
• Typical noise level: 41 dB(A)
• Cooling performance: up to 27 °C below ambient temperature
• Heating capability: up to +65 °C
• Power sources: AC mains (220–240 V), vehicle cigar lighter (12/24 V), DC
• Energy consumption (indicative): 73 kWh (annual or typical usage reference)
• Dimensions (W×D×H): 450 × 303 × 420 mm
• Colours: Black, Silver

How to use

Place the cooler on a stable surface with sufficient ventilation around it. Connect to a suitable power source — AC mains or a vehicle 12/24 V socket — and switch on using the soft-touch control panel. Set the desired temperature via the digital display; the memory feature preserves these settings after power is removed. Avoid blocking air intakes and ensure the fan can operate freely for effective cooling or heating.

What to consider before purchase

• Thermoelectric technology: suitable for chilling and warming but not for deep-freezing needs
• Performance varies with ambient temperature — effectiveness decreases as ambient heat increases
• Ensure available power sources (AC or 12/24 V DC) match your intended use
• Check dimensions and capacity to confirm it fits your vehicle or storage space

Usage recommendations

For best results, pre-cool the contents or use ice packs to assist the thermoelectric cooler in hot environments, keep the lid closed as much as possible, and ensure the unit is placed with unobstructed airflow around the vents.