Duoetto MK2 Hot Water System - Electric - 10L - 12V / 240V10L SPCC steel and enamel-lined tank with single weld lineAutomatic voltage detection and switchingDigital control interface for 12v operationDimensions: 409mm x 262mm x 267mmDual voltage operation: 240V (30-75C) and 12V (up to 70C)240V (30-75C) 12Volt CablesHorizontal Mounting with Floor/Wall BracketsIncluded Mounting HardwareIncludes combination pressure relief and non-return valve1.5m Hose (8mm)Connection for Optional Remote Control (Control NOT Included)Included Connections Duoetto MK2 Hot Water System - Electric - 10L - 12V / 240V1 / 15
Mercury RV / Aus J Water Heaters
Duoetto MK2 Hot Water SystemElectric · 10L · 12V / 240V
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Description
A favourite among van builders, 4WD tourers, and traditional caravanners alike, the Duoetto MK2 delivers a reliable supply of hot water without the complexity of gas plumbing or compliance. With its dual-voltage design, this 10L electric storage water heater runs on 12V DC or 240V AC, making it ideal for both off-grid installations and powered sites - no gas bottles, regulators, or certifications required.
This simplicity makes it a go-to choice for DIY installations in campervan conversions, canopy builds, and remote cabins, while its long-standing reputation for durability keeps it firmly in place in many caravan setups across Australia. The Duoetto MK2 automatically detects the available power source, switching seamlessly between mains and battery to provide consistent water heating wherever you are.
Built with a robust SPCC steel tank, enamel lining, and polyurethane insulation, it's engineered for thermal efficiency and long-term performance. Safety features like over-temperature and run-dry protection, plus a digital control interface for 12V use, make it a dependable and user-friendly solution for mobile hot water needs.
Features
10 L SPCC steel and enamel-lined tank with single weld line
No gas required - perfect for DIY and non-certified installs
Dual voltage operation: 240 V (30–75 °C) and 12 V (up to 70 °C)
Digital control interface for 12 V operation
Automatic voltage detection and switching
Over-temperature and run-dry protection
Polyurethane insulation for heat retention
Durable outer casing with service access points
Includes combination pressure relief and non-return valve
Incoloy 840 heating element for reliability
1 year warranty.
Specifications
Brand: Mercury RV / Aus J Water Heaters
Dimensions: 409 mm x 262 mm x 267 mm
Draw / Power consumption: 12 V DC (25 A, 300 W) | 240 V AC (4.2 A, 1,000 W)
