The Thermex H 15 U (pro) is a compact electric water heater designed for vertical installation under a sink, making it a practical choice for small kitchens or bathrooms where space is limited. Its 15-liter tank is lined with porcelain bio-glass, which helps protect the internal surface from corrosion and extends the life of the appliance. With a power rating of 1500 W, it can heat the water to a maximum temperature of 75 °C in about 31 minutes. Measuring 38 cm in height and width with a depth of 34 cm, this white unit features a silver control panel for a clean look. You can easily adjust the temperature using the rotary knob, which includes settings for ECO, Min, and Max, while dedicated indicator lights let you know when the device is powered on and actively heating. Weighing 8.5 kg, the boiler is built to handle a maximum pressure of 8 bar, ensuring reliable performance for daily household tasks.