The new, optimised WPF reaches the elusive output level of up to 5.0 (COP). This puts the WPF among the top products in the heat pump market – with user friendliness being another leading feature. This high efficiency unit can be controlled securely and conveniently via the new WPM 3 heat pump manager. Similarly trend-setting is the advanced integration level of the appliance, which ensures safe and speedy installation. The expansion vessels for both the heating and brine sides are pre-fitted, as are the highly efficient circulation pumps for the heating circuit and brine circuit. The WPF heat pump, with heat and electricity meters included as standard, is available in six versions with heating output levels ranging from 4.6 to 17 kW. A further major benefit is that: the WPF can be combined with any heat pump cylinder from the STIEBEL ELTRON range. The WPF cool version also offers a cooling function in addition to DHW and central heating.