Ariston ARKS 5 Liter Under- & Countertop unit – Hot water with style and safety

The Ariston ARKS 5-liter water heater is the ideal solution for anyone looking for a compact, environmentally friendly, yet powerful storage water heater. With its modern design and easy installation, this under-sink unit impresses both visually and functionally. It is perfectly suited for use in small spaces and niches without compromising on performance.

Compact design for maximum space saving

With its dimensions of 250 mm width, 385 mm height and 184 mm depth, the Ariston ARKS 5 liter fits into almost any installation situation. This space-saving design makes it the perfect choice for small kitchens, bathrooms or even commercial spaces where space is limited.

Despite its compact size, the hot water storage tank holds 5 liters of water, thus providing sufficient capacity for daily use, such as hand washing or dishwashing.

Easy assembly and high user-friendliness

The Ariston ARKS 5 liter is particularly easy to install thanks to its open, unpressurized design. It connects via a 3/8"The easy-to-use connection makes installation straightforward even for less experienced DIYers. Thanks to the indicator light, you always know whether the device is in operation or not.

In addition, the practical PU rigid foam insulation, which is CFC-free, ensures efficient heat storage, thus saving energy and making operation more environmentally friendly.

Safety comes first.

The Ariston ARKS 5-liter kettle is equipped with multiple safety systems to ensure worry-free operation. The integrated thermostat and overheat protection function allow the temperature to be constantly monitored and maintained safely. Furthermore, the innovative reset system prevents overheating, effectively protecting against scalding.

Another advantage is the built-in frost protection system, which protects the device from damage caused by freezing, even at low temperatures.

Inner container made of corrosion-resistant plastic

The hot water storage tank is equipped with an inner tank made of high-quality, corrosion-resistant plastic. This prevents rust formation and thus significantly extends the service life of the unit. The anti-vacuum system also ensures that malfunctions caused by negative pressure conditions are effectively avoided.

Sustainability and energy efficiency

With an energy efficiency rating of A, the Ariston ARKS 5-liter water heater is among the most economical in its class. This translates to lower energy costs and sustainable operation. Environmental friendliness was also a key consideration in the material selection, as the water heater is 100% recyclable.

Thanks to its fast heating time of only about 9 minutes, the device provides hot water exactly when you need it – without long waiting times, but with the necessary energy efficiency.

Technical highlights at a glance:

- Capacity: 5 liters
- Energy class: A
- Power: 2 kW at 230 V
- Heating time: approx.9 minutes
- Dimensions: 250 mm (width) x 385 mm (height) x 184 mm (depth)
- Inner container made of corrosion-resistant plastic
- Pressureless design for under- or over-table mounting
- Thermostat with overheat protection
- Reset system for resetting in case of overheating
- Automatic frost protection
- CFC-free rigid polyurethane foam insulation
- Operating indicator light
- Antivacuum system

Conclusion: Simple, safe, and efficient

The Ariston ARKS 5-liter under-sink water heater combines modern design, high functionality, and sustainability in a compact unit. Whether for private or commercial use, this appliance adapts flexibly to your needs and reliably delivers hot water. With its easy installation and sophisticated safety features, the ARKS 5-liter is a true standout among water heaters.