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Isotherm Marine Refrigerators

Isotherm refrigerators and freezers are the result of careful research. Marine refrigerators operate under tough conditions: they must withstand violent movements, operate noiselessly, be thoroughly reliable and, perhaps the most important of all, consume an absolute minimum of battery power. Isotherm Marine Refrigerators feature superior storage capacity; marine features like cradles and adjustable holders to keep bottles and jars secure and upright; and are backed by the exclusive Isotherm 5-Year Limited Warranty on the compressor and two-year warranty on all other parts.

Cruise Elegance

The Isotherm Cruise Elegance Line of Marine Refrigerators are more than handsome fridges that add value to every instalation. They have an engineered elegance that provides superior performance and reduces run time of the compressor for greater efficiency. Each Isotherm Cruise Elegance (DC Only) refrigerator is pre-configured for the addition of the Isotherm Smart Energy Control Award Winning Technology.

Cruise Classic

Isotherm Cruise Classic Marine Refrigerators combine technological innovation with sophisticated, yet practical design for the marine environment. Cruise Classic refrigerators are available from 36 liters up to 200 liters (1.3 cubic feet to 7 cu. ft.) and provide numerous customization options: right hand or left hand side opening; DC-only or AC/DC; ASU system or Isotherm Smart Energy Control (DC Only) options for reduced power consumption.

Cruise Stainless Steel (INOX)

Isotherm Cruise Stainless Steel (INOX) Marine Refrigerators combine technological innovation with sophisticated, yet practical design for the marine environment. They offer all the benefits of the Cruise Classic, but in stainless steel.

Drawer Refrigerators

Isotherm Drawer Refrigerators and Freezers feature convenient drawer opening which allow an easy access to food and drinks. An extraordinarily stylish design makes these highly functional units a valuable addition to any boat. Isotherm Drawer fridges and freezers are recognized by their great design and user-friendliness. High-quality materials and robust construction ensure long life in the marine environment. Defender has Stainless Steel models in stock. Glass and Custom finish models are available by special order.

Isotherm Cooling Technologies

ASU technology

Decreased Energy Consumption

The patented ASU system has now been available for more than 30 years and has been installed on tens of thousands of boats worldwide. The ASU system starts the compressor when the engine is running and the power is available to freeze the holding plate completely. The energy stored in the holding plate will keep the refrigerator cool for many hours. When the engine is stopped, the compressor will not restart until the cold stored in the plate is all consumed. Once the stored cold is completely consumed, the compressor starts to run for short periods to maintain the required temperature in the box. With its unique principle of operation - the patented ASU "Automatic Start Up" system - Isotherm ASU has an important competitive advantage over traditional refrigerators.

Smart Energy Control

Make Your Fridge Run Smarter

The sophisticated, processor-based Isotherm Smart Energy Control technology achieves significant power consumption savings by continuously scanning a set of key environmental factors to determine, through advanced proprietary algorithms, what is the most relevant compressor speed to maximize the performance/battery drain ratio (COP). The device not only makes your fridge intelligent but also allows the storage of a significant amount of cold energy into the loaded food and drinks. Isotherm Smart Energy Control reduces the cabinet temperature more than a traditional fridge without freezing the food. This is continuously monitored by an air sensor in the cabinet. The cooling energy is stored when a power surplus is available (engine on or connection to grid) and reused first, before the fridge is running on battery. The result: Up to 35% savings due to a more efficient use of the compressor and up to 50% savings with combined effects of stored cooling energy in food and drinks.

Frost Free Technology

Increased Energy Efficiency

The Indel Webasto Marine frost-free concept provides structural features which prevent the accumulation of ice inside the freezer which therefore avoids an increase in energy consumption. All models equipped with the frost-free concept are extremely economical and save energy on board.

Indel Webasto Marine - Isotherm - Isotemp