The compact model of the Willer PU15R optima mini water heater with a 15 l storage tank is an excellent option for kitchens and places that do not require a large amount of water. Willer PU15R optima mini does not take up much space during installation, as it is made in an ergonomic, attractive design, has a rectangular shape, dimensions 385x308x385 mm, and weighs 7.8 kg. It should also be taken into account that its design provides for the upper piping and the presence of a wet heating element with a capacity of 1.5 kW, which will allow installing this model even under the sink. Its body is made of wear-resistant ABC plastic, and the inner surface of the tank is covered with titanium quartz enamel. The quick heating of water up to 75 degrees, as well as the clear mechanical control of the Willer PU15R optima mini and the presence of a magnesium anode, which prolongs its service life, will also please.