Fast deliveries of yacht equipment, calculation, selection of analogues and spare parts. Send us your request and we will contact you ASAP with a solution. We deliver in Cyprus, throughout Europe and worldwide. More than 10 years of experience.
Email us: info@yacht-supply24.com or fill our Feedback form.
You can also fill out the "Ask a question" form on the right or at the bottom of the page.
|
1-2 weeks delivery time The Isotherm SDF00025QA is a production-version gasket kit designed for Basic and Slim heating element assemblies. It includes the required sealing components for factory or replacement installation, ensuring watertight performance, stable mounting, and long-term reliability in marine water heater systems. |
$ 56.28
-
+
|
|
1-2 weeks delivery time The Isotherm SDF00033AA is a durable rubber gasket designed for the Slim Square 16L flange, ensuring a secure, watertight seal for marine water heater installations. Made from high-quality elastomer, it maintains sealing performance under heat, vibration, and constant exposure to moisture. |
$ 30.63
-
+
|
|
1-2 weeks delivery time The Isotherm SEA00019HA thermostat is a replacement unit for Isotemp Slim A-03 Regular 15L water heaters manufactured before 1998 (TP9016). It ensures accurate temperature regulation, stable switching, and reliable hot-water performance in marine installations requiring restoration of the original control element. |
$ 103.38
-
+
|
|
1-2 weeks delivery time The Isotherm SEA00041LA thermostat is a replacement control unit for Isotemp Basic and Slim-B marine water heaters. It provides stable temperature regulation and reliable switching to maintain consistent hot-water output, ensuring correct operation in onboard systems exposed to vibration, humidity, and fluctuating temperatures. |
$ 70.04
-
+
|
|
1-2 weeks delivery time The Isotherm SEA00042LA is an overheat protection thermostat for Isotemp Slim-B and Basic marine water heaters. It provides safety shutdown in case of excessive temperature, protecting the heating element and system components. Designed for harsh onboard conditions, it ensures reliable thermal safety in hot-water installations. |
$ 56.03
-
+
|
|
1-2 weeks delivery time The Isotherm SEB00068AA is a 3-piece wire set for Isotemp Basic marine water heaters, providing factory-spec electrical connections for the thermostat, heating element, and safety components. It ensures stable power transfer and reliable operation in humid, vibration-prone onboard environments. |
$ 30.63
-
+
|
|
1-2 weeks delivery time The Isotherm SEB00080AA is a UL-certified power cable with a U.S.-standard plug designed for Isotemp marine water heaters. It ensures a safe, compliant AC connection in vessels using the North American electrical system, providing reliable power delivery in humid and vibration-prone onboard environments. |
$ 61.26
-
+
|
|
1-2 weeks delivery time The Isotemp SEE00002HA is a 220V/750W regular heating element (TP09003) designed for marine water heaters. Built from corrosion-resistant materials, it provides stable electric heating performance and serves as a direct-fit replacement for maintaining reliable onboard hot-water systems. |
$ 141.67
-
+
|
|
1-2 weeks delivery time The Isotemp SEE00006HA is a 115V/750W regulated heating element (TP09005) designed for marine water heaters, providing stable heat output and corrosion-resistant performance. Suitable as a direct replacement in compatible systems, it restores efficient onboard hot-water production. |
$ 176.12
-
+
|
|
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. |
$ 172.30
-
+
|
|
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. |
$ 103.38
-
+
|
|
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. |
$ 156.99
-
+
|
|
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. |
$ 84.05
-
+
|
|
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. |
$ 88.07
-
+
|
|
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. |
$ 172.30
-
+
|
|
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. |
$ 88.07
-
+
|
|
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. |
$ 88.07
-
+
|
|
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. |
$ 317.79
-
+
|
What are the primary features of the Isotemp marine water heater?
The Isotemp marine water heaters are specifically designed for use on yachts and boats, featuring a compact design like the Isotemp Slim and Isotemp Slim Square models, ideal for tight spaces. These water heaters come with high-quality components, including a heat exchanger that uses engine heat to warm the water in the tank. These Boat Hot Water Heater solutions come with high-quality components, including a heat exchanger that uses engine heat to warm the water in the tank. Available in various capacities, such as the 4.2-gallon (16L) or larger options like 25L and 40L, they also include a mixing valve to regulate water temperature, providing reliable performance onboard.
What are the key differences between the Isotemp Slim and Isotemp Basic water heaters?
The key differences between the Isotemp Slim and Isotemp Basic water heaters lie in their size and design. The Slim models, such as the Isotemp Slim 25L, are specifically designed for use in tight spaces on boats, featuring a compact design with high-quality components. In contrast, the Basic models, like the Basic 40L and Basic 75L, offer larger water tanks and come with standard features such as a mixing valve that regulates water temperature, providing additional protection and reliability for marine applications. Both lines can be effectively integrated into a Boat Heater system to ensure consistent hot water supply and onboard comfort.
What are the main safety features included in the Isotemp Spa water heater?
The Isotemp Spa Marine Water Heater is equipped with several key safety features, including a safety valve that helps regulate pressure and prevent overheating. It is designed with high-quality components, providing an additional layer of protection, and comes standard with a mixing valve to control water temperature. These features ensure reliable and safe operation for marine use, even in challenging conditions.
How does the Isotemp Slim Square water heater save space on boats and yachts?
The slim water heater utilizes a uniquely shallow, rectangular design that fits perfectly into narrow voids behind joinery or flat against bulkheads, spaces typically wasted on vessels. This efficient Slim Square profile unlocks installation possibilities in areas where conventional cylindrical heaters are impossible to place, directly preserving valuable cabin and storage room.
What role does the heating element play in maintaining consistent water temperature in Isotemp water heaters?
The electric heating element acts as the primary precision tool for raising and holding temperature. When the thermostat signals a drop, the 750w electric element activates to heat the water to the exact setpoint, ensuring the tank is always ready. For consistent warmth during use, the system seamlessly integrates multiple heat sources:
- The engine heat exchanger uses engine coolant from the coolant loop to heat the water while underway.
- The electrical immersion heater maintains temperature at the dock.
- A dedicated thermostat-controlled mixing valve then blends cold and hot water to deliver a safe, stable output.
How does the mixing valve in an Isotemp water heater enhance safety and comfort?
| Valve Mechanism | Safety Outcome | Comfort & Efficiency Gain |
|---|---|---|
| Pre-Delivery Tempering | Eliminates the possibility of unmixed, stored water exiting the heater, preventing potential thermal injury at the tap. | Provides immediately usable water at a preselected temperature, removing the need for manual adjustment and reducing water waste. |
| Pressure-Balancing Spool | Instantly counteracts a drop in cold inlet pressure by proportionally restricting hot flow, averting a sudden temperature surge. | Maintains a stable shower temperature when other fixtures like washing machines or toilets are activated elsewhere in the system. |
| Fail-Safe Thermal Cutoff | A non-electrical wax actuator fully shuts off hot water outflow if the cold supply fails, ensuring a default safe state. | Operates automatically and independently, offering permanent protection without user maintenance or external power. |
| Factory-Set Limit Stop | Allows for a fixed maximum output temperature to be defined and mechanically locked, preventing accidental override. | Creates a uniform and predictable hot water experience across all household outlets, tailored to safe usage standards. |
What are the advantages of the 20L Isotemp water heater model for small vessels?
The compact Spa 20 model delivers a practical volume of hot water for its size, efficiently heated to 160 degrees using either the engine heat exchanger or its 750w electric element. Its smaller footprint and 11 gallon capacity make it the ideal balanced solution for galleys and heads on trailers, weekend sailboats, or any craft where space and weight are primary considerations.
How does the stainless steel water tank design improve durability in Isotemp and Isotherm systems?
The stainless steel inner tank is the foundational defense against corrosion and failure. Isotemp stainless steel marine water heaters are built to withstand the demanding marine environment for years. This robust material resists the corrosive effects of water heated and stored for long periods, unlike glass-lined or plastic tanks. The integrity of this hot water tank is backed by a strong 5-year limited warranty, reflecting trust in its longevity. Key protective features include:
- A brushed stainless steel cover for external protection.
- A safety mixing valve to prevent overheating.
- A pressure relief valve as a standard safety backup.