Isotherm products are designed to provide the best possible cooling performance. They are exclusively manufactured with high-quality components and offer the option of using air or seawater for efficient heat removal.
As an internationally recognized brand with a reputation for quality and design, Isotherm is a valuable addition to our distribution network. Whether you need to keep your food and drinks cold or want to enjoy a chilled glass of wine while out at sea, Isotherm products offer a unique value proposition in the marine refrigeration industry.

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1-2 weeks delivery time The Isotherm BI 40 SP is a 40-liter built-in marine freezer featuring efficient SP self-pumping seawater cooling, Click-On mounting, external insulating panel, and X-couplings for quick installation, powered by the reliable BD35F compressor on 12/24V. |
$ 2,671.83
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1-2 weeks delivery time The Isotherm BI-75 (3075BB2B00000) is a 75-liter built-in refrigerator/freezer with a stainless steel interior, durable plastic bottom, and a practical wire basket. Equipped with interior lighting and an efficient Secop BD35F compressor, it offers reliable cooling performance in marine and RV applications. The air-cooled compressor is mounted below but can be relocated up to 1.5 meters for flexible installation. |
$ 2,843.34
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1-2 weeks delivery time The Isotherm 3075BB2B00006 BI-75 is a 75-liter built-in refrigerator/freezer with a stainless steel interior, quick couplings, and a Click-On QND mounting system. Designed for marine, RV, and off-grid applications, it ensures reliable cooling, easy installation, and long-term durability. |
$ 3,405.28
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1-2 weeks delivery time The Isotherm 3075CB2B00000 BI-75 SP is a 75-liter built-in refrigerator/freezer with stainless steel lining, plastic base, and interior light. Featuring a remote SP water-cooled compressor (with Magnum option available), it provides efficient and customizable cooling for marine, RV, and off-grid installations. |
$ 4,079.34
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1-2 weeks delivery time The Isotherm BI 92 (3092BB2B00000) is a 92-liter built-in refrigerator/freezer designed for marine environments. Featuring a stainless steel interior, plastic base, three wire baskets, and interior lighting, it offers a temperature range from +10°C to -20°C. Equipped with a Secop BD50F compressor (air-cooled, floor-mounted, removable up to 1.5m), with optional SP or Magnum compressor versions and a water-cooled alternative, it provides versatile and reliable onboard refrigeration. |
$ 3,454.80
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1-2 weeks delivery time The Isotherm 3092BB2B00006 BI92L/V is a 92-liter built-in refrigerator/freezer with stainless steel interior, powered by 12/24V. It features a remote Secop BD50F compressor with Click-On mounting and X-Couplings for quick installation. Designed for marine use, it offers a temperature range from +10°C to -20°C, three wire baskets, interior light, and durable construction for long-term reliability. |
$ 4,138.72
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1-2 weeks delivery time The Isotherm 3092CB2B00000 BI-92 is a 92-liter built-in refrigerator/freezer equipped with an SP (Self-Pumping) water-cooled compressor. Featuring a stainless steel interior, three wire baskets, and interior lighting, it ensures efficient cooling with reduced power consumption and noise levels, ideal for marine environments. |
$ 4,844.22
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1-2 weeks delivery time The Isotherm 3092DC2B00000 BI-92 Magnum is a 92-liter built-in refrigerator/freezer equipped with a Magnum seawater-cooled BD50F compressor. Designed with stainless steel interior, plastic bottom, three wire baskets, and interior light, it features quick-connect couplings for easy installation. Operating on 12/24V DC, this high-performance cooling unit offers superior efficiency and reliability for demanding marine environments. |
$ 7,068.99
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1-2 weeks delivery time The Isotherm Clear Ice Maker (5S21A11A0N000) produces up to 18 kg (40 lbs) of crystal-clear ice daily using an advanced spray system. Designed with a 4L tank and automatic operation, it connects directly to a pressurized water system for continuous supply. Built from stainless steel with front ventilation, MOCA-certified internal parts, and eco-friendly R290 refrigerant, this compact ice maker (584 x 355 x 430 mm, 29 kg) is perfect for marine, RV, or galley installations. |
$ 2,264.94
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1-2 weeks delivery time The Isotherm 5S21A12A0N000 Clear Ice Maker (230V/60Hz) is a premium marine-grade spray-type ice machine capable of producing up to 40 lbs (18 kg) of crystal-clear ice per day. Built with a stainless-steel exterior, it delivers high-quality clear ice while ensuring durability, hygiene, and reliability. Weight: 97 lbs, dimensions: 22.9 × 13.9 × 16 in. |
$ 3,099.80
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1-2 weeks delivery time The Isotherm 5S21A14A0N000 Clear Ice Maker (115V/60Hz) is a stainless-steel marine ice machine designed to produce up to 40 lbs (18 kg) of premium clear ice per day using spray technology. Built for yachts, RVs, and galleys, it offers reliable performance, low maintenance, and durable construction. Weight: 97 lbs; dimensions: 22.9 × 13.9 × 16 in. |
$ 3,099.80
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1-2 weeks delivery time The Isotherm IceDrink White BI29(II) (model 5W03A21CAN000) is a compact 230V/50Hz marine ice maker designed for tight spaces such as cockpits and under-seat installations. It produces up to 4 kg of white ice cubes per day, featuring a 14-liter refrigerated storage bin, stainless-steel inner walls, and extra-long drawer slides for easy access. Power consumption: 180 W, dimensions 363 × 375 × 730 mm, weight 26 kg. |
$ 3,052.52
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1-2 weeks delivery time The Isotherm 5W29A21CAN000 IceDrink White BI29 is a compact marine ice maker operating on 230V/50Hz, designed with a durable Inox (stainless steel) cabinet and front ventilation. Using White Ice gravity technology, it produces distinctive half-moon white ice cubes and delivers up to 4 kg/day. A built-in freezer compartment keeps ice frozen, while its low-profile design supports versatile custom installations on boats, yachts, and RVs. |
$ 3,052.52
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1-2 weeks delivery time The Isotherm 5W29A24CAN000 IceDrink White BI29 is a compact marine ice maker designed for 115V/60Hz operation. It uses White Ice gravity technology to produce elegant half-moon white ice cubes at up to 4 kg/day. Built with a durable Inox (stainless steel) cabinet and featuring front ventilation and an integrated freezer compartment, it is ideal for yachts, boats, and RV installations requiring reliable, low-profile ice production. |
$ 3,052.52
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1-2 weeks delivery time The Isotherm 5W05A35CMRE00 Inox Clean Touch WT White Ice Maker is a compact dual-voltage marine ice maker (12V DC + 230V/50Hz AC) with an integrated water tank. Designed for low-profile installation, it produces up to 8 kg/day of gravity-formed “white ice” (half-moon cubes), features a stainless steel Clean Touch door, metal casing, and a refrigerated storage cabinet. Power consumption: 180 W/h, climatic class ST, air-ventilated design for reliable operation in ambient temperatures up to 38°C. |
$ 3,475.13
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1-2 weeks delivery time The Isotherm 5W05A36CMRU00 Inox Clean Touch WT White Ice Maker is a compact, low-profile marine ice maker operating on 12V DC and 115V/60Hz AC. It uses reliable White Ice gravity technology to produce up to 8 kg/day of half-moon white ice cubes and includes a refrigerated storage cabinet. The unit features a stainless steel Clean Touch door, metal casing, air-ventilated cooling, and is designed for installation in confined marine or RV spaces. Power consumption: 180 W/h, climatic class ST. |
$ 3,475.13
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1-2 weeks delivery time The Isotherm 5W05A38CMRU00 Inox Clean Touch WT White Ice Maker is a low-profile, dual-voltage marine ice maker operating on 24V DC and 115V/60Hz AC. It uses White Ice gravity technology to produce up to 8 kg/day of half-moon white ice cubes and includes a refrigerated ice storage compartment. With an Inox Clean Touch stainless steel door, metal casing, air-ventilated cooling, and reliable performance up to 38°C ambient temperature, it is ideal for yacht and RV installations requiring compact, durable ice production. Power consumption: 180 W/h, climatic class ST. |
$ 3,475.13
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1-2 weeks delivery time The Isotherm 5W08L11IMN000 Low Profile Ice Maker produces up to 22 lbs of crescent-shaped “white” ice per day. Designed with a marine-grade stainless steel door and a flush-mount 3-side flange, it is ideal for installations in tight spaces with limited height. Operating at 230V/50Hz with a compact size of 495 x 373 x 559 mm and weighing 32 kg, this automatic ice maker ensures reliable performance even in demanding marine environments. |
$ 2,153.13
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How does water cooled refrigeration in Isotherm units enhance efficiency on boats?
Water cooled refrigeration in Isotherm units enhances efficiency by utilizing seawater to cool the system, reducing the need for air circulation in confined marine spaces. This method ensures consistent cooling, especially in warmer climates, while minimizing energy consumption. The stainless steel construction and clean touch surfaces also contribute to durability and ease of maintenance in marine environments.
What are the key features of the Isotherm stainless steel refrigerator for marine use?
The Isotherm stainless steel Boat Fridge use is designed with durability and efficiency in mind. Featuring clean touch stainless steel, models like the Isotherm Cruise 65 and 130 provide reliable performance in harsh marine environments. Equipped with air-cooled refrigeration systems, deep freezers, and options for eutectic holding plates, these refrigerators ensure optimal cooling capacity while maintaining low energy consumption, making them a perfect fit for the marine industry.
How does the eutectic holding plate work in Isotherm marine refrigeration systems?
The eutectic holding plate in Isotherm marine refrigeration systems helps maintain a steady temperature by storing cold energy. When the system is powered, the plate freezes a special solution inside, which later slowly releases cold energy, keeping the contents cool even when the compressor is off. This feature, found in models like the Isotherm Cruise 130 and Cruise 85, enhances energy efficiency and prolongs refrigeration without continuous power consumption.
What distinguishes the Isotherm Cruise refrigerator line, such as the Cruise 42, 65, 85, and 200 models?
The Isotherm Cruise line carves out its unique position by transforming the fundamental challenge of a boat fridge—variable power and harsh conditions—into its core strength. Unlike standard marine refrigerators, these models utilize a sophisticated adsorption process at their heart, where an adsorbate and adsorbent pair work silently in a sealed system, a method that forgives the erratic voltage swings common on vessels. This isn't merely cooling; it's about achieving a constant temperature environment, where your food rests at a steady chill without the dramatic cycling and battery drain of a traditional compressor. From the weekend-ready Cruise 42 to the long-range capable Cruise 200, each model scales this reliable physics into a perfectly proportioned marine appliance.
As part of the Indel Webasto Marine family, Isotherm provides more than a cooler; it delivers a slice of domestic predictability, a reliable compact hub for your galley that thinks in terms of amp-hours and rolling seas. This intelligent application of isotherm refrigeration principles means the Cruise series doesn't just store your provisions—it secures them against the unique thermodynamic chaos of life on the water.
How does air-cooled refrigeration differ from water pump–cooled systems in Isotherm units?
Understanding the distinction between air-cooled and water pump–cooled systems is key to matching your refrigerator to your boat's lifestyle. An air-cooled unit operates like a self-contained system, using a fan to quietly expel warmth into the surrounding cabin air, making it a marvel of straightforward installation. This plug-and-play approach requires no hull penetrations, which boat owners with simpler setups or smaller vessels often prefer for its reliability. Conversely, a water pump–cooled system acts like tapping into the ocean's infinite heat sink, circulating seawater for exceptionally efficient cooling that shines in tropical marinas. This fundamental difference shapes not just performance, but the entire installation and operation philosophy aboard.
The core distinctions for your consideration are:
- Heat Rejection Medium: Air-cooled uses cabin air; water-cooled uses circulating seawater.
- Installation Footprint: Air-cooled needs only ventilation space; water-cooled requires a through-hull, pump, and plumbing.
- Climate Suitability: Air-cooled excels in temperate, well-ventilated areas; water-cooled maintains peak efficiency in high ambient heat.
- Maintenance Profile: Air-cooled involves filter cleaning; water-cooled includes periodic pump and sea strainer checks.
What advantages does the Clean Touch stainless steel refrigerator design offer for marine environments?
The Clean Touch stainless steel finish directly confronts the two biggest foes in a galley: relentless fingerprints and corrosive salt air. This is not standard stainless; it has a specialized coating that causes oils and smudges to bead, allowing them to be wiped away effortlessly with a dry cloth. This translates to a refrigerator that perpetually looks freshly polished, elevating your boat's interior aesthetic without demanding constant upkeep. Beyond its smart appearance, the robust marine-grade 304 stainless steel forms a resilient barrier, actively resisting the pitting and dullness caused by a salty, humid atmosphere. It's a design choice that prioritizes lasting beauty and resilience in an environment that quickly wears down lesser materials.
Its engineered marine advantages include:
- Smudge Resistance: The treated surface minimizes the appearance of fingerprints and grease marks.
- Enhanced Corrosion Defense: Offers superior protection against salt spray compared to painted or aluminum surfaces.
- Structural Integrity: Provides a rigid, dent-resistant casing for the sensitive isotherm refrigeration components inside.
- Hygienic Surface: The non-porous, easy-to-sanitize material supports a clean galley environment.
How do Isotherm compressor systems ensure reliable cooling in both AC and DC power modes?
| Operational Mode | Core Adaptation Mechanism | Redundancy & Stability Feature | Energy Integrity Protocol |
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| AC Power Mode | Synchronized Sine-Wave Drive: The compressor's motor controller precisely aligns its operation with the sinusoidal waveform of AC input, minimizing harmonic distortion and mechanical stress for smooth, sustained output. | Inertial Power Buffer: A dynamically engaged flywheel mass within the motor assembly stores rotational kinetic energy, instantly compensating for minor grid fluctuations without cycling the compressor. | Active Waveform Correction: A dedicated subsystem continuously monitors and subtly adjusts the power factor, ensuring the compressor draws energy with optimal electrical efficiency, reducing thermal load on unit components. |
| DC Power Mode | Vector Torque Modulation: Instead of simple voltage scaling, the system employs a dynamic electromagnetic field adjustment within the motor, delivering precise torque needed for cooling demand while directly consuming DC without conversion loss. | Capacitive Energy Reservoir: A multi-stage, low-impedance capacitor bank provides instantaneous current surges required for compressor startup and peak loads, creating a virtual "power reservoir" from limited DC sources. | Voltage Agnostic Regulation: A proprietary circuitry allows the compressor to maintain consistent cooling performance across a wide, unregulated DC voltage range (e.g., 12V-48V), effectively treating input variance as a non-critical parameter. |
| Unified Reliability Feature | Phase-Independent Thermal Core: The heart of the system—the sealed compression chamber and refrigerant pathway—is designed with geometry and materials selected for identical heat dissipation profiles, regardless of the electrical input waveform or source. | Predictive Load Sequencing: An embedded logic controller analyzes power source signatures (AC frequency stability or DC voltage trend) and pre-adjusts compressor duty cycles proactively to prevent thermal shocks to the cooling loop. | Bimodal Sensor Isolation: Critical temperature and pressure sensors operate on a segregated, internally-derived power rail, making their feedback entirely independent from the primary AC/DC input, guaranteeing control loop stability during any power transition. |
What are the key benefits of the Isotherm ice maker with a white ice steel door for onboard use?
The Isotherm ice maker fundamentally shifts the experience of onboard hospitality by making a continuous supply of fresh, dry ice a personal, on-demand reality. Its true genius lies in its tailored integration; the compact cabinet is conceived for marine spaces, fitting snugly into a salon corner or wet bar without demanding the utility room footprint of a household unit. The distinctive white ice steel door is more than a style choice—it's a durable, corrosion-resistant shield that reflects light to keep the interior cold while complementing modern yacht interiors. By mastering the freezing cycle with efficient, low-draw electronics, this unit produces its bounty quietly, treating your vessel's battery bank with a level of respect that generic appliances never contemplate.
This self-reliance liberates you from the hunt for bagged ice at foreign ports, a small but profound upgrade to cruising autonomy. Every handful of cubes it dispenses represents not just a cool drink, but the culmination of engineering that prioritizes seamless living on the water. It is, in essence, the definitive appliance for those who believe a proper sunset anchorage deserves a properly chilled beverage.
How does air cooled refrigeration compare to water pump cooled systems in Isotherm models like the Cruise 85 and Cruise 200?
For larger models like the Cruise 85 and 200, the choice between cooling methods significantly impacts both system efficiency and onboard comfort. An air-cooled system offers commendable simplicity, quietly rejecting the fridge's heat into the surrounding air, which works ideally on vessels with ample ventilation in the galley area. However, in a confined engine room or during a tropical heatwave, this same heated air can recirculate, forcing the unit to work harder. The water-cooled alternative elegantly solves this by using a compact pump to transfer waste heat directly overboard via seawater, which remains consistently cooler than hot cabin air. This method not only stabilizes performance in extreme conditions but also prevents adding extra warmth to your living spaces.
Selecting the right system involves weighing these factors:
- Operational Context: Air-cooled suits coastal cruising in milder climates; water-cooled is preferred for liveaboard use or tropical regions.
- Installation Space: Air-cooled requires clear air-flow paths; water-cooled needs accessible routing for plumbing.
- Ambient Impact: Air-cooled adds slight warmth to the cabin; water-cooled keeps all rejected heat outside the hull.
- Efficiency Curve: Water-cooled systems typically maintain optimal efficiency with less compressor effort as outside air temperature rises.
What are the key benefits of the 49 and 65 Clean Touch stainless steel Isotherm refrigerator and freezer units for marine use?
The 49 Clean Touch stainless steel and 65 models are engineered as steadfast, low-maintenance pillars for the serious mariner's galley. Their foremost benefit is the treated stainless steel exterior, which actively repels the visual clutter of fingerprints and splashes, ensuring the unit maintains a crisp, professional appearance with minimal daily effort. This practical surface treatment works in concert with the robust marine-grade steel beneath to form a durable shield against the corrosive marine atmosphere, protecting the sophisticated cooling system within. Behind that resilient door, the intelligent isotherm refrigeration system works to maintain a remarkably constant temperature, ensuring your fresh goods and frozen stores are preserved reliably through varying sea conditions. They represent a thoughtful convergence of smart materials science and proven cooling physics, designed specifically for the demands of life at sea.
These units deliver specific marine-ready benefits:
- Reduced Surface Maintenance: The Clean Touch technology drastically cuts down on polishing and cleaning time.
- Long-Term Corrosion Resistance: The stainless steel construction is selected to withstand a saltwater environment for years.
- Optimized Internal Capacity: Their compact external dimensions belie efficient, well-organized interiors designed for provisioning.
- Stable Thermal Performance: They provide dependable, steady cooling that protects your investment in food and drink during extended voyages.
