Advanced dual 12v / 230v 10L Water heater — Black surround V2

Affordable and Convenient Hot Water for Your Campervan

The Advanced Overlands heater provides reliable hot water using either 12V DC or 230V AC power—ideal for campervans or marine hot water systems.

The 200W 12V element runs efficiently from your leisure battery and solar setup, making it perfect for off-grid use.
The 230V AC element delivers 1500W of heating power, ideal when connected to mains electricity or used with an inverter.
The Dual Element tank supports both power sources and is easily managed with a pre-wired LCD controller.

For solar setups, the 12V DC element can also be wired through an A30 controller for use as a solar dump.

The Advanced Overlands hot water system heats water up to 75°C and maintains a consistent, comfortable shower temperature—perfect for multiple users in your motorhome or narrowboat.

The 10L insulated and pressurised tank connects easily to your existing water supply, featuring built-in tank connectors and requiring minimal power to maintain temperature. It’s compatible with all water pumps up to 45 PSI and includes ½” male BSP fittings, suitable for all standard plumbing connections. If you plan to use a pump with higher pressure than 45 PSI, please contact us for advice.

Don’t have a fresh water pump yet? Check out our 12V pump and accumulator kit—designed to work seamlessly with this system and available for purchase here.

Key Features:

• Quick and easy installation

• Compatible with water pumps up to 45 PSI

• Standard ½” threaded fittings for simple integration into your existing plumbing system

• High-density polyurethane foam insulation helps retain heat and reduce energy usage

• Built-in drain valve for easy tank maintenance

Additional Features – 12V DC / Dual Element Models:

• Uses surplus battery or solar power to heat water—providing free hot water during sunny months

• Includes an LCD controller with adjustable temperature settings, AC timer, and manual on/off control

• LED indicators clearly show whether the system is running on DC or AC power

• For optimal performance from solar, we recommend a minimum 300W solar array

This system is supplied with bare wires. This product is CE marked, indicating compliance with European health, safety, and environmental protection standards.

10litre heaters

Length not included fittings 39cm 42cm at end of thread

Width 31.8cm

Height 32.8cm

Require fitting? See our services page for more information.

Please note heater can not be mounted upside down/feet at the top.