Isotherm Immersion Heater Element
Efficient Heating for Marine Water Systems
The Isotherm Immersion Heater Element delivers consistent and efficient water heating using AC shore power or onboard generators. Designed specifically for Isotherm marine water heaters, it ensures your hot water supply stays dependable in marine, RV, and off-grid systems.
Built for Harsh Environments
This heating element features corrosion-resistant materials that handle vibration, moisture, and scale buildup. Its robust threaded body forms a tight, secure seal, making it ideal for demanding conditions on boats or mobile systems. Because of its durable construction, it offers long service life with minimal maintenance.
Straightforward Installation
Replacing the element takes just a few steps. Simply unscrew the old unit and install the new one using basic tools. There’s no need for special adapters or modifications when used with compatible Isotherm stainless steel water heaters. For best results, pair the replacement with a new gasket to ensure a watertight seal.
Flexible Power Options
You can choose the immersion element in either 115V or 230V variants, depending on your power system. Both options offer efficient heating without overloading your onboard electrical circuits. As a result, you’ll enjoy faster heat-up times and consistent performance while conserving energy.
OEM Quality You Can Trust
This is a genuine Isotherm replacement part, built to original equipment standards. It matches the performance and specifications of the factory-installed element, so you can trust it to integrate smoothly into your existing system.
Key Features
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Genuine Isotherm immersion element for marine water heaters
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Heats water efficiently using 115V or 230V AC power
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Corrosion-resistant and vibration-tolerant design
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Easy to install with standard tools
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Compatible with Isotherm stainless steel tank models
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Ideal for boats, RVs, and off-grid systems
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Long-lasting performance with minimal upkeep
Reliable Hot Water Anywhere
The Isotherm Immersion Heater Element gives you the reliable hot water you need—whether you’re at sea, on the road, or off the grid.