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 U125X041L17161AA ITC fridge/freezer unit supports 125 L refrigeration and 41 L freezing capacity, featuring a Large L-bent evaporator (400+170×210 mm) and BD35F compressor with 12/24V air-cooled operation and ITC temperature control. |
$ 1,341.15
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1-2 weeks delivery time The Isotherm U125X041R17151AA SEC fridge/freezer unit provides 125 L cooling and 41 L freezing capacity, using a Small-O evaporator and 12/24V air-cooled BD35F compressor with SEC electronic control for efficient marine operation. |
$ 1,435.46
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1-2 weeks delivery time The Isotherm U125X041R17161AA air-cooled fridge/freezer unit offers 125 L cooling and 41 L freezing capacity, equipped with a Small-O evaporator, BD35F compressor, and ITC digital control for optimized efficiency on 12/24V systems. |
$ 1,383.06
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1-2 weeks delivery time The Isotherm U150X000R11111AA air-cooled fridge unit provides 150 L cooling capacity with a Medium-O evaporator and BD35F compressor, offering reliable 12/24V performance for marine refrigeration installations. |
$ 1,257.33
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1-2 weeks delivery time The Isotherm U150X000R11111AE fridge unit offers 150 L cooling capacity with a Medium-O evaporator and integrated evaporator door with ice tray, powered by an efficient 12/24V air-cooled BD35F compressor. |
$ 1,208.43
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1-2 weeks delivery time The Isotherm U150X050P17161AA GE 150 ITC unit provides 150 L cooling and 50 L freezing capacity with a flat evaporator and air-cooled BD35F compressor, featuring ITC digital control for optimized energy use on 12/24V. |
$ 1,365.61
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1-2 weeks delivery time The Isotherm U150X050R17161AA Compact Classic 2301 ITC is an air-cooled 12/24V refrigeration unit with a medium oval evaporator, offering 150 L fridge and 50 L freezer capacity with ITC intelligent digital control for optimized power use. |
$ 1,449.43
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1-2 weeks delivery time The Isotherm U170X056P17161AA Compact Classic 2012 ITC is a 12/24V air-cooled marine fridge/freezer unit with a flat evaporator, offering 170 L cooling and 56 L freezing capacity, complemented by ITC digital control for efficient power management. |
$ 1,641.52
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1-2 weeks delivery time The Isotherm VE200 Plug&Play is a 12/24V air-cooled refrigeration unit for up to 200 L volume, featuring a ventilated fin evaporator, integrated insulated wall with sealing gasket, BD35F compressor, six hinge points for fast installation, and a temperature range from 0°C to +11°C. |
$ 1,523.84
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1-2 weeks delivery time Air-cooled 12/24V refrigeration unit for boxes up to 200 L, equipped with a Large-O evaporator (380×140×270 mm) and BD35F compressor, offering stable cooling performance in compact marine installations. |
$ 1,428.47
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1-2 weeks delivery time Air-cooled 12/24V ITC+ fridge/freezer unit for 200 L cooling and 65 L freezing capacity, equipped with a 6 L holding plate and BD35F compressor for efficient energy storage and stable temperature control. |
$ 3,604.35
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1-2 weeks delivery time SP seawater-cooled 12/24V fridge/freezer unit for 200 L cooling and 65 L freezing capacity, equipped with a 6 L holding plate and ITC+ control, using a BD35F compressor for high efficiency and reduced battery load. |
$ 3,586.89
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Isotherm U260X086P17161AA – 12/24V 2017 ITC Air-Cooled 260/86 L Fridge/Freezer Unit, Flat Evaporator
1-2 weeks delivery time Air-cooled 12/24V fridge/freezer unit for 260 L cooling and 86 L freezing volume, equipped with a large flat evaporator (1000×270 mm) and ITC control for optimized performance and energy management. |
$ 2,050.15
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1-2 weeks delivery time High-capacity 12/24V Magnum refrigeration unit for 425 L fridge and 141 L freezer volumes, equipped with an oversized flat evaporator (1370×300 mm) and BD50F compressor for maximum cooling performance in demanding marine installations. |
$ 4,631.17
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1-2 weeks delivery time The Isotherm 3053BC2B00000 is a 53-liter built-in marine freezer with a stainless-steel inner liner, internal lighting, plastic bottom and a removable wire basket for organized storage. Operating on 12/24V DC, it achieves temperatures from 0°C to -20°C and uses an air-cooled Secop BD50F compressor that can be mounted remotely up to 1.5 m away for flexible installation. The freezer measures 465 + 165 x 645 x 425 mm, weighs 26 kg and has an average energy consumption of approx. 260 Wh/24h according to ISO 15502:2005 and EN 153:2006. |
$ 3,164.28
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1-2 weeks delivery time The Isotherm 3053BC2B00006 BI 53 F is a 53-liter built-in marine freezer featuring a stainless-steel inner liner, internal lighting, a durable plastic bottom and a removable wire basket. Operating on 12/24V DC, it delivers a temperature range from 0°C to -20°C and is equipped with an air-cooled Secop BD50F compressor that can be mounted remotely up to 1.5 meters away. This version includes Click-On mounting hardware and X-couplings for simplified installation. The unit measures 465 + 165 x 645 x 425 mm, weighs 26 kg and consumes approximately 260 Wh/24 h according to ISO 15502:2005 and EN 153:2006. |
$ 3,485.60
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1-2 weeks delivery time The Isotherm 3053CC2B00000 BI 53 F is a 53-liter built-in stainless-steel marine freezer operating on 12/24V DC and capable of maintaining temperatures from 0°C to -20°C. It includes interior lighting, a plastic bottom liner and a removable wire basket for structured storage. This SP version features an air-cooled Secop BD50F compressor that can be mounted remotely up to 1.5 meters away, and comes equipped with Click-On mounting hardware and X-couplings for quick and secure installation. The freezer measures 465 + 165 x 645 x 425 mm, weighs 26 kg and has an average energy consumption of approx. 260 Wh/24 h (ISO 15502:2005 / EN 153:2006). |
$ 4,121.25
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1-2 weeks delivery time The Isotherm 3053DC2B00000 BI 53 F is a 53-liter built-in marine freezer featuring a stainless-steel interior, LED lighting, a plastic bottom liner and a removable wire basket. Operating on 12/24V DC, it delivers temperatures from 0°C down to -20°C and is equipped with a Magnum sea water–cooled Secop BD50F compressor for enhanced cooling efficiency. The remote compressor can be mounted up to 1.5 meters away and comes supplied with Click-On mounting hardware and X-couplings. The freezer dimensions are 465 + 165 x 645 x 425 mm, weight 26 kg, and the average energy consumption is approx. 260 Wh/24 h (ISO 15502:2005 / EN 153:2006). A stainless-steel outer flange is optionally available. |
$ 5,322.70
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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.
