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monoBOIL Electrical Hot Water Boiler 4.5l
Assy: AT04

The perfect hot water solution for small campers, boats, and off-grid setups - great for usage together with solar panels. Designed for efficiency and reliability, this compact electric boiler heats water up to 83°C, ensuring comfort even in the most remote locations.


Capacity - 4.5 Liters

Available power variations - 12V 300W / 24V 600W / 120V 550W / 230V 550W 



Flexible Mounting - Its cylindrical shape allows rotation within the two mounting clamps, ensuring a practical fit in any vehicle.


Integrated Safety Valve - If the system pressure is too high, a safety valve opens and prevents damage or leaks.


Frost Protection - The safety valve's lever allows quick boiler drainage via a drain hose (not included), making winterizing easy.


Minimized Heat Loss - Closed-cell polyurethane foam insulation for minimized heat loss.


Shutdown Temperature - The boiler automatically turns off when the target temperature is reached.


Thermostat - Built-in in the 120/230V versions, as an external module (TSR, included) in the 12/24V versions.

How does it work?

HOT WATER SYSTEM WITH monoBOIL
100% heated only with electricity
  • Boiler
  • Steel flex line
  • Thermostatic mixing valve
  • Pressure regulator
  • Fresh water tank
  • Pressure water pump + Accumulator tank
  • Water filter
  • Water tap