World of heating engineering Solarthermics and heat pumps Heat pumps
                        
                        
                          Exhaust air heat pumps Water/water heat pumps Brine/water heat pumps
                        
                        
                          World of ventilation and air-conditioning technology Residential ventilation and ventilation systems for non-residential buildings Systems and components for residential and non-residential ventilation
                        
                        
                          Complete systems for controlled residential ventilation with heat recovery Industrial ventilation Central units with air intake and air extraction Central units with water heating
                        
                        
                          World of ventilation and air-conditioning technology Residential ventilation and ventilation systems for non-residential buildings Decentralised ventilation equipment
                        
                        
                          Decentralised ventilation equipment with heat recovery