Heating method and apparatus

A facade element for installing on an exterior wall of a building, for carrying out the process of using heat exchangers for the exchange of heat between flows of a medium streaming in and out of a building, wherein the flows of the medium after passing through a passive heat exchanger are directed to a heat pump and each one of the flows passes through the appropriate warm, or cold, heat exchangers of the heat pump, comprising the following characteristics, an insulated exterior wall and an interior wall, a medium partition, whereby exterior wall and medium partition form, on the intake side, a flow channel which connects to the floor of the building below the facade element and draws spent air out of that floor, and the interior wall and the medium partition form on the outlet side, flow channel for fresh air which channel connects to the upper floor served by the facade element, and a heat pump thermodynamically coupled to the channels.