This is an excellent choice for small apartments. All connections are installed at the bottom of EcoTouch Ai1 Compact and you can control it with embedded colored 4.3 inch touch display. For example it includes hot water tank with 120 liters content, automatic legionella protection circuit, electric heating insert, chlorine-free refrigerant, variable speed circulators and vibration damper. Dimensions 802 x 1980 x 400 mm. Device also has Red Dot award for best design in 2018.