Isotherm products are high-quality yacht refrigeration and cooling solutions. They are used onboard boats and yachts to provide efficient and reliable cooling for perishables, beverages, and supplies, ensuring that sailors and boaters can enjoy fresh and chilled items during their voyages. These products are designed to fit various vessel sizes and layouts, making them a valuable addition to marine equipment for a comfortable and enjoyable sailing experience. Isotherm, under Indel Webasto Marine, a successful joint venture between the internationally known Indel B and the leading automotive supplier Webasto, extends its product range to include more specialized cooling solutions like the Isotherm Cruise 130 and Drawer 160 refrigerators. These units are known for their elegant design and efficient use of space, ideal for integration into the limited areas available on boats. The brand prioritizes energy-efficient operation, with systems like the water-cooled refrigeration options that consume an absolute minimum of battery power and operate noiselessly, ensuring they do not disrupt the onboard experience. These cooling units, from ice makers to wine cellars, are tailored to meet the demanding needs of the marine industry, offering customized solutions that combine luxurious comfort with thoroughly reliable and energy-saving engineering.
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1-2 weeks delivery time The Isotemp SEE00014HA is a 115V/750W replacement heating element for Basic and Slim-04 marine water heaters, supplied with a sealing gasket. It provides stable electric heating, corrosion-resistant performance and a direct-fit installation for restoring hot-water output on board.
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$ 172.30
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1-2 weeks delivery time The Isotemp SEE00015LA is a 230V/1200W replacement heating element for Basic series 50–75L marine water heaters. Supplied with a sealing gasket, it provides strong heating performance, reliable sealing and marine-grade durability for restoring or upgrading onboard hot-water systems.
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$ 103.38
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1-2 weeks delivery time The Isotemp SEE00016LA is a 230V/2000W high-power heating element for Isotemp Basic 50–75L water heaters. Supplied with a sealing gasket, it provides fast heat-up performance, reliable thermal output and marine-grade corrosion resistance for onboard hot-water systems.
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$ 156.99
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1-2 weeks delivery time The Isotemp SEE00019LA is a 230V/750W replacement heating element for Basic and Slim-04 marine water heaters. Supplied with a sealing gasket, it provides stable heat output and corrosion-resistant performance, restoring reliable hot-water operation in onboard systems.
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$ 84.05
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1-2 weeks delivery time The Isotemp SEE00023HA is a 115V/1200W replacement heating element for Isotemp Basic water heaters, supplied with a sealing gasket. Designed for marine environments, it delivers high heat output, stable performance and reliable sealing for restoring hot-water production on board.
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$ 88.07
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1-2 weeks delivery time The Isotemp SEE00024JA is a 110V/900W heating element designed for Slim “A” marine water heaters manufactured before 2004. It provides stable electric heating, corrosion-resistant performance and a direct-fit replacement for restoring hot-water output in older onboard systems.
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$ 172.30
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1-2 weeks delivery time The Isotemp SEE00028LA is a 230V/750W replacement heating element for Slim Square 16L marine water heaters, providing efficient heat transfer and corrosion-resistant performance. It is a direct-fit component designed to restore reliable hot-water production in compact onboard installations.
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$ 88.07
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1-2 weeks delivery time The Isotemp SEE00029HA heating element is a 115V/750W replacement unit designed specifically for Slim Square 16L water heaters. Built for marine use, it offers stable heat output, corrosion-resistant construction and direct-fit compatibility for restoring or maintaining hot-water performance onboard.
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$ 88.07
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1-2 weeks delivery time The Isotemp SEE00030LA electric heater kit provides a 230V/750W immersion heating element complete with thermostat and connection cable for Slim and Basic series water heaters. Designed for reliable marine operation, it offers stable thermal performance and direct-fit compatibility for replacements or upgrades.
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$ 317.79
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1-2 weeks delivery time The Isotherm SFA00001AA is a small brass fitting kit (TP0105K) designed for Slim, Basic and Regular Isotherm water heaters. It provides durable corrosion-resistant connections for hot-water plumbing, ensuring proper sealing, long-term reliability and correct interface with heater inlet/outlet ports.
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$ 145.49
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1-2 weeks delivery time The Isotherm SFA00006AA is a big brass fitting kit (TP0100K) designed for Slim, Basic and Regular Isotherm water heaters. It provides large-diameter, corrosion-resistant brass connectors for hot-water plumbing, ensuring secure sealing and correct interface with heater inlet/outlet ports during installation or replacement.
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$ 340.77
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1-2 weeks delivery time The Isotherm SFA00007AA is a USA-standard 1/2" brass socket kit with internal threads for Slim, Basic and Regular Isotherm water heaters. It provides corrosion-resistant threaded connections for U.S. plumbing systems, ensuring secure sealing and proper adapter fit during installation or replacement.
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$ 42.12
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1-2 weeks delivery time The Isotherm SFA00008AA is a 1/2" brass T-fitting designed for marine hot-water and freshwater plumbing circuits. It provides a durable, corrosion-resistant three-way connection point for routing or splitting 1/2" lines in Isotherm water-heater installations or general onboard plumbing systems.
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$ 34.47
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1-2 weeks delivery time The Isotherm SFA00014AA is a T-fitting designed for the safety-valve connection on Isotherm Basic and Slim water heaters. The -06 version provides a durable brass interface that ensures proper routing between the heater, pressure-relief valve and system plumbing, maintaining reliable over-pressure protection and leak-free operation.
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$ 30.63
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1-2 weeks delivery time The Isotherm SFD00003AA is a water-mixing thermostat kit designed for Isotemp Basic and Slim-B water heaters manufactured before 2007. It ensures stable mixed-water output temperature, prevents scalding, and maintains correct hot- and cold-water blending through a durable marine-grade thermostatic valve assembly.
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$ 145.49
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1-2 weeks delivery time The Isotemp SFD00003AB mixing valve kit is designed for Isotemp Basic and Slim-B water heaters from 2007 onward. It stabilizes outlet temperature, protects onboard plumbing, and ensures safe hot-water delivery using marine-grade, corrosion-resistant components.
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$ 150.59
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1-2 weeks delivery time The Isotherm SFD00004AA is a Regular-series 4.0 kp/cm² (≈4 bar) safety valve (TP09021) for marine water heaters. It provides reliable over-pressure protection, automatically releasing excess pressure to prevent tank damage and ensure safe operation of Isotemp hot-water systems.
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$ 126.36
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1-2 weeks delivery time The Isotherm SFD00005AA is a 7-bar safety valve designed for Isotemp Basic and Slim marine water heaters. It provides automatic over-pressure protection, releasing excess pressure during heating cycles to prevent tank deformation, hose failure and system damage in onboard hot-water installations.
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$ 57.44
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1-2 weeks delivery time The Isotherm SFD00008AA is a 1¼" fitting kit equipped with a shut-off valve (TP39052) for SP-series installations. It provides a robust, corrosion-resistant connection assembly allowing controlled isolation of the water circuit, enabling safe maintenance, leak protection and reliable operation in marine systems.
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$ 168.47
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1-2 weeks delivery time The Isotemp SFD00011AA LK550 mixing valve (1/2" × 1/2", Ref. 090202) provides precise hot-water temperature control for marine water-heater systems. Built from corrosion-resistant materials, it stabilizes outlet temperature and protects plumbing fixtures onboard.
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$ 107.21
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Indel Webasto: How Is the Isotemp Basic 40 Typically Used on Watercraft?
Isotemp Basic 40 is typically used on watercraft for the purpose of providing hot water onboard. As a dependable Boat Hot Water Heater, it ensures a reliable supply of hot water for various applications, such as showering, dishwashing, and general domestic use on boats and yachts. This water heater is especially valuable for enhancing the comfort and convenience of passengers and crew during their maritime journeys.
In addition to water heating, Isotemp and Indel Isotherm products are high-quality yacht refrigeration and cooling solutions. They are used onboard boats and yachts to provide efficient and reliable cooling for perishables, beverages, and supplies, ensuring that sailors and boaters can enjoy fresh and chilled items during their voyages. These products are designed to fit various vessel sizes and layouts, making them a valuable addition to marine equipment for a comfortable and enjoyable sailing experience.
Isotherm, under Indel Webasto Marine, a successful joint venture between the internationally known Indel B and the leading automotive supplier Webasto, extends its product range to include more specialized cooling solutions like the Isotherm Cruise 130 and Drawer 160 refrigerators. These units are known for their elegant design and efficient use of space, ideal for integration into the limited areas available on boats. The brand prioritizes energy-efficient operation, with systems like the water-cooled refrigeration options that consume an absolute minimum of battery power and operate noiselessly, ensuring they do not disrupt the onboard experience. These cooling units, from ice makers to wine cellars, are tailored to meet the demanding needs of the marine industry, offering customized solutions that combine luxurious comfort with thoroughly reliable and energy-saving engineering. offer a wide array of refrigeration solutions to meet the diverse needs of watercraft. Products range from the compact Isotherm Cruise 42 refrigerators to the more spacious 130 liter models, all designed to operate efficiently with the lowest power consumption possible. These refrigerators and freezers, including specialized units like the clean touch stainless steel and low profile versions, are built to withstand the harsh marine environment, ensuring durability and reliability. The development of these systems involves careful research to ensure they not only provide convenience but also align with the stringent energy and space constraints typical on boats and yachts. This comprehensive approach to designing marine appliances underscores the commitment of Indel Webasto Marine to delivering high-quality, innovative solutions tailored specifically for marine applications.
What is Isotherm Cold Plate and how does it improve food storage conditions on a vessel?
Isotherm Cold Plate is a refrigeration system designed to enhance food storage conditions on vessels. It utilizes advanced technology to maintain a consistently low temperature, ensuring that perishables and provisions stay fresh for extended periods. By efficiently regulating the temperature within the refrigerator or freezer compartments, Isotherm Cold Plate contributes to preserving food quality and reducing waste during extended voyages on boats and yachts.
The Isotherm Cold Plate system is part of Indel Webasto
Marine's extensive range of cooling solutions tailored for the marine environment. This range includes classic refrigerator designs and innovative models like the Isotherm Cruise refrigerators, which are available in various sizes, including the practical 130-liter and space-saving 5.5 cubic feet models. Designed and manufactured in Sant'Agata Feltria, Italy, these refrigeration units, whether air-cooled or water-cooled, are engineered to meet the unique demands of marine applications. They are constructed to withstand the violent movements common in marine settings and offer features such as low profile designs for integration in tight spaces aboard cruisers and other large vessels. The collaboration between these two renowned companies highlights their commitment to providing high-quality, durable, and energy-efficient refrigeration solutions that enhance comfort on the water.
What maintenance and care recommendations are necessary for Isotherm and Isotemp products to ensure their long lifespan and optimal performance on marine vessels?
To ensure the long lifespan and optimal performance of Isotherm and Isotemp products on marine vessels, regular maintenance and care are essential. Here are some recommendations:
- Periodically clean the interior of Isotherm refrigeration units, including the Cold Plate and Cruise models, to prevent the buildup of ice and frost, which can affect cooling efficiency.
- Inspect the gaskets and seals on these products, such as Isotemp Basic 40 and Isotherm Freeline 115, to ensure they remain airtight, preventing cold air from escaping and warm air from entering the refrigerated compartments.
- Check and clean the condenser coils on units like Isotherm Magnum and Isotemp Slim 15 to remove dust and debris, as this can improve overall performance and energy efficiency.
By following these maintenance practices, boat and yacht owners can extend the lifespan and reliability of their Isotherm and Isotemp equipment, ensuring it continues to provide optimal cooling and storage solutions onboard.
Additionally, for Isotherm Marine refrigeration systems, it is crucial to regularly inspect and maintain the water cooling systems, especially in models like the Isotherm SP, which utilize water-cooled technology to enhance efficiency in warmer climates. These systems must be checked for scale build-up and proper water flow to prevent overheating and ensure efficient operation. The air-cooled models, suitable for less demanding environments, also require occasional airflow checks to keep them running smoothly. Utilizing travel boxes designed for the harsh marine environment can protect these units during off-season storage, further extending their service life. With Isotherm products being a prominent choice among 160 major boat manufacturers worldwide, adherence to these maintenance routines is vital for preserving the quality and performance expected from a brand renowned for its reliable and innovative marine solutions, all engineered and perfected in Sant'Agata Feltria, Germany.
