Marine Electric Water Heater - 10L, 15L, 20L & 30L, 12V DC / 220V AC
The AirowMarine Marine Electric Water Heater is designed to provide heated water for compatible boats, yachts, recreational vehicles (RVs), and other suitable mobile or off-grid installations. Available in 10L, 15L, 20L, and 30L capacities, this compact electric water heater combines a brushed metal exterior, an enamel-lined inner tank, and mechanical temperature control.
Depending on the selected model, electrical configurations include 12V DC / 300W or 220V AC / 1600W. Choose the capacity and electrical configuration that match your installation space, hot-water requirements, and available power supply.
Before ordering, confirm the exact model specifications, including rated voltage, power consumption, tank dimensions, mounting orientation, plumbing connections, and operating pressure requirements.
Product Specifications
| Specification | Details |
|---|---|
| Product Type | Marine electric water heater |
| Brand | AirowMarine |
| Available Capacities | 10L, 15L, 20L, 30L |
| Electrical Configurations | 12V DC / 300W or 220V AC / 1600W, depending on model |
| Heating Tube Material | 316L stainless steel, as specified |
| Inner Tank | Enamel-lined |
| Exterior | Brushed metal casing; exact material to be confirmed |
| Temperature Adjustment | 30°C-75°C |
| Over-Temperature Protection | 93°C ± 5°C, as specified |
| Water Protection Rating | IPX4, as specified |
| Installation Location | Above or below a sink, where permitted for the selected model |
| Typical Applications | Compatible boats, yachts, RVs, and other suitable installations |
Important model-selection note: Confirm the exact capacity and electrical configuration for your selected variant. Do not assume every tank size is available with both 12V DC and 220V AC operation. The stated 93°C ± 5°C is an over-temperature protection specification, not the normal thermostat setting range.
Key Features of the Marine Electric Water Heater
1. Four Tank Capacity Options
Choose from 10L, 15L, 20L, and 30L capacities to suit your available installation space and expected hot-water demand. The appropriate capacity depends on the number of users, water usage, and the available space for installation.
2. Selectable Electrical Configurations
Listed electrical options include 12V DC / 300W and 220V AC / 1600W, depending on the model. These are different electrical configurations and are not interchangeable. Verify the rated input voltage and power requirements before connecting the unit to a power supply.
3. Enamel-Lined Inner Tank
The inner tank features an enamel lining for water storage within the electric water-heating system. The specified 316L stainless steel material applies to the heating tube; it should not be interpreted as a claim that all water-contact components are made from 316L stainless steel.
4. Adjustable Mechanical Temperature Control
The mechanical temperature control is specified for adjustment between 30°C and 75°C. Actual water temperature and heating performance depend on the selected setting, incoming water temperature, power supply, and operating conditions.
5. Heating Indicator and Safety Protection
A built-in heating indicator helps show when the heater is operating. The listed safety features include over-temperature protection specified at 93°C ± 5°C and over-pressure protection. Confirm the applicable pressure rating, relief requirements, and installation instructions for the exact model before use.
6. IPX4 Splash Protection
The stated IPX4 rating indicates protection against water splashes from any direction under the conditions defined for that rating. It does not mean the heater is waterproof for immersion or suitable for unrestricted exposure to marine environments. Install and use the unit according to the manufacturer's instructions.
Choosing the Right Water Heater Capacity
Select the tank capacity based on expected hot-water demand, the number of users, available installation space, and the electrical supply available at your location.
- 10L Marine Water Heater: A compact option for installations with limited space and lower hot-water demand.
- 15L Marine Water Heater: A mid-size option for installations that need more stored hot water.
- 20L Marine Water Heater: A larger-capacity option for installations with greater hot-water demand and sufficient space.
- 30L Marine Water Heater: The largest listed capacity for installations that can accommodate a larger tank.
These are general selection guidelines, not guarantees of hot-water output or recovery time. Actual performance depends on the selected model, incoming water temperature, thermostat setting, electrical supply, and usage patterns.
Electrical Compatibility and Installation
Before ordering, verify the rated voltage, power consumption, available electrical supply, tank dimensions, mounting orientation, plumbing connections, and installation clearances for your selected model.
- 12V DC / 300W version: Confirm compatibility with the DC system, wiring, circuit protection, and available power supply.
- 220V AC / 1600W version: Confirm that the available AC supply matches the exact rated input voltage and electrical requirements.
- Mounting: Install only in an orientation and location approved for the selected model. Ensure the mounting surface can support the unit when filled with water.
- Plumbing: Confirm connection sizes, operating pressure limits, and the required pressure-relief provisions in the manufacturer's documentation.
- Professional installation: Have a qualified marine electrician or installer assess wiring, circuit protection, grounding or bonding, and suitability for the installation environment.
For RV installations, follow applicable electrical and plumbing requirements. Do not energize the heater until the required water supply and filling procedure have been completed according to the manufacturer's instructions.
Safety and Operating Notes
- Normal temperature adjustment range: 30°C-75°C, as specified.
- Over-temperature protection: 93°C ± 5°C, as specified; this is not the normal operating temperature range.
- IPX4 indicates splash protection, not protection against immersion.
- Confirm the rated operating pressure and required pressure-relief arrangement before installation.
- Disconnect the power supply before installation or servicing.
- Follow the manufacturer's instructions for filling, operation, maintenance, and electrical connection.
Frequently Asked Questions
Is this electric water heater suitable for boats and yachts?
It is intended for suitable marine installations, including boats and yachts, when the selected model's electrical, plumbing, mounting, and environmental requirements are met. Review the installation instructions and exact model specifications before use.
Can I use this water heater with a 12V boat battery?
Only use the 12V DC / 300W version if that configuration is explicitly available for the selected variant. Confirm battery-system suitability, wiring, circuit protection, and current requirements with a qualified installer. Do not connect a 220V AC model directly to a 12V battery.
Can I use the 220V AC version in the United States?
The listed AC configuration is 220V / 1600W. Do not assume it is compatible with a standard US 110-120V outlet. Confirm the exact rated input voltage and local electrical compatibility before purchase.
What is the difference between the 10L, 15L, 20L, and 30L versions?
The main difference is nominal tank capacity. Choose according to hot-water demand, available space, and the specifications of the selected variant. Heating time and recovery performance may vary between models and electrical configurations.
What temperature can this water heater reach?
The mechanical temperature control is specified for adjustment from 30°C to 75°C. Actual water temperature depends on the selected setting and operating conditions. The stated 93°C ± 5°C over-temperature protection specification should not be confused with the normal thermostat range.
Is the water heater fully waterproof?
The stated rating is IPX4, which indicates protection against splashing water. It does not mean the unit can be submerged or installed in conditions beyond its specified protection rating.
Can it be installed above or below a sink?
The product information describes above-sink or below-sink installation. Confirm that the selected model supports the intended mounting orientation and that the mounting space, plumbing connections, filled weight, and service clearances comply with the manufacturer's instructions.
What should I check before ordering?
Confirm the required tank capacity, exact voltage and power configuration, available installation space, plumbing connections, operating pressure requirements, and suitability for the intended installation environment.
Order the Right Marine Electric Water Heater
Choose the tank capacity and electrical configuration that match your boat, yacht, or RV installation. If you need help confirming the correct model or checking installation requirements, contact AirowMarine before ordering.
Email: sales@airowmarine.com
Product and installation notice: AirowMarine is an independent marine accessories supplier. Specifications and configurations may vary by model. Confirm the exact product data and installation requirements for your selected variant before purchase. Electrical and plumbing installation must comply with the manufacturer's instructions and applicable local requirements.











