ATLANTIC NANTO SWH15U electric water heater 15 l, 2.0 kW, under sink, class B, 821498

ATLANTIC NANTO SWH15U / NANTO 15 L US is a compact electric storage water heater with a 15-litre tank and 2000 W / 2.0 kW heating output. The model is specifically designed for vertical wall-mounted installation under the sink, providing rapid hot-water availability directly at the point of use.

The compact NANTO design is suitable for kitchens, bathrooms, offices and other locations where a large hot-water storage tank is unnecessary. Its 15-litre capacity provides a larger hot-water reserve than the 10-litre NANTO while maintaining compact external dimensions.

The model is equipped with a copper immersion heating element. Its 2.0 kW heating output provides rapid water preparation – approximately 18 minutes at ΔT 35 °C and approximately 27 minutes at ΔT 50 °C.

ATLANTIC O’Pro anti-corrosion technology helps protect the water-heater tank against electrochemical corrosion. The ohmic resistor used in the O’Pro system reduces galvanic current and works together with the magnesium anode to help extend the service life of the tank.

Additional protection is provided by a magnesium anode and high-quality Diamond-quality ceramic glass lining. A dedicated flange gasket helps protect metal surfaces around the flange from direct contact with water.

High-density CFC-free polyurethane thermal insulation reduces heat losses and helps maintain stored water temperature for longer. Energy consumption over 24 hours at 65 °C is only 0.58 kWh.

A high-efficiency cold-water inlet system helps limit unnecessary mixing of incoming cold water with the already heated water, allowing more efficient use of the available hot-water volume.

Water temperature is adjusted using an easily accessible mechanical control. Adjustable water temperature allows the heater to be adapted to the specific requirements of the installation and everyday hot-water use.

The NANTO range provides Eco and Absence modes. Eco is intended for economical everyday operation, while Absence mode helps reduce unnecessary energy consumption during longer periods when hot water is not required.

Operating indication provides information about the water-heating process and makes the appliance easy to monitor. Thermal safety protection against excessive water temperature is also incorporated into the design.

According to ErP data for product code 821498, the heater has energy efficiency class B and load profile XXS. Water-heating energy efficiency is 32%, annual electricity consumption is 576 kWh, the ErP thermostat setting is 50 °C and indoor sound power level is only 15 dB.

ATLANTIC NANTO SWH15U measures 378 × 360 × 321 mm (height × width × depth) and has a net weight of 8.0 kg. It operates from a 230 V electrical supply, uses standard 1/2" water connections and is particularly suitable for installation inside a cabinet or other restricted space underneath a sink.

Technical information