TGA |When ecology pulls the shorter one

The switch to ecologically sustainable energy systems in the stock?Gas heating versus air-water heat pump: In a recent project, sustainability and ecology draw the loser.

The renovation of existing objects in the urban development area presents a planning team in the use of renewable energy again and again with great challenges.The planned and described project in the Graz urban area already had a gas connection, district heating was not possible.The project consists of an underground car park, a kindergarten and 24 residential units.In the course of the planning process, the possibility of an alternative to a gas heating was ventilated.The following variants were discussed accordingly:

Pellet heating

Brine water heat pump

Air Water heatpump

Aufgrund der baulichen Situation betreffend Flächenangebot und Grundstückscharakteristik mussten die Varianten Pellet heating und Brine water heat pump ausgeschlossen werden. Damit wurde die Air Water heatpump mit einer Gaszentralheizung verglichen.For the renovation of the property, which is funded with state funds, there is an upper limit for the funding rate per square meter of the renovation costs.As a result, the investor is always in the area of tension: energy from renewable energy to purely business return.In the project in question, the investor has known itself to have multi -investment in the amount of 100.000 €.