Wilhelminian house in Vienna
Revitalized to low-energy standard
This historic Wilhelminian style (start of 20th century) house in Vienna was at the end of its useful life when it was rejuvenated through intelligent renovation that conserved resources. Heating costs were drastically reduced and CO2 emissions dropped to 10%.
To achieve this, the façade was insulated (heavy-duty thermal insulation) and windows and doors were replaced. The 30 antiquated coal, oil or gas stoves were replaced with a central heating system along with central water heating. Folding window elements in the attic enable passive solar heating, and the automatically controlled shading system protects the building from overheating.
Renovation converted the historic house to desirable living space. The extended life of the building avoids demolition and disposal costs and so protects both the budget and the environment.
|Project||Historic house in Vienna|
|Size||ca. 2000 m2|
|Heating system||controlled ventilation with heat recovery + central regional heating|
|Sealing of façade elements|
|Insulation of basement ceiling and top-level ceiling|
|Central water heating|
|Reduction of chimneys via collective chimney|
|Previous consumption kWh/m2 a alt||145,54|
|Present consumption kWh/m2 a||39,92|
|CO2 savings annually||108 tons|