A passive house, whether planned from scratch or built according to existing designs, proves that it is possible to combine energy-efficient construction methods with sophisticated architectural design.

WeberHaus was involved in the development of passive houses since their inception. Many energy-efficient houses were built in recent years, and our research in this field continues. Thanks to their excellent thermal insulation, WeberHaus houses are particularly well suited to the passive house principle.

According to the Passivhaus-Institut in Darmstadt, Germany, a passive house has a maximum thermal energy requirement of 15kWh/m²a. With such excellent thermal properties, the house can dispense with conventional heating systems and is heated only by internal heat gains (body heat and heat from electrical appliances) and solar energy. The remaining energy requirement is supplied by heating the air supplied.

This would be impossible without controlled ventilation with heat recovery, as the ventilation heat loss would be too great.

More information about the intelligent implementation of these requirements is available here.