Low energy house after 23 years

23 years degraded the passive house performance. Special the air tightness of the windows worsened. The energy demand doubled.



Low energy house after 23 years
23 years degraded the passive house performance. Special the air tightness of the windows worsened. The energy demand doubled.

Even with doubled energy demand is it still a low energy house. To come back to passive house standard, it's necessary to renovate the windows. Costly, because it's an own construction.

It's possible to save an equivalent of 400 to 500 litre fuel oil per year.But because energy is cheap, only humans are extrem high taxed, the renovation will be only later.


  Passive house pioneer in Salzburg


23 years after the first passive house in Salzburg, we with the pioneer and his energy saving Haus. Construction details became a lifework: Sera wall heating

Passive house pioneer in Salzburg: Ing. Heinz Eggert Passive house pioneer in Salzburg: Ing. Heinz Eggert
With an energy demand for heating like 400 to 500 litre fuel oil equivalent for 170m² living space, the house from 1980 is within todays standards for passive houses.


Air collector roof Air collector roof
Direct below the aluminium roof ascend warm air. The air heated by the warm roof is pulled by a 300 Watt ventialator through cavums in the walls.


Fourfold glazing for u=0,8 thermal insulation Fourfold glazing for u=0,8 thermal insulation
There was 1980 no offer for thermal insulation glazing like today. Ing.Heinz Eggert constructed doors and windows himself.


Night insulation for the windows Night insulation for the windows
In winter are 2/3 night and 1/3 day. To reduce thermal looses in the long winter nights, all windows and glas doors are with a foldaway thermal protection.


Mechanic for the thermal protection of the windows Mechanic for the thermal protection of the windows
Special for this house are this fittings developt to open and close the thermal protection in front of the windows from inside. Insie is a crank.


Sera wall heating from the passive house in Salzburg Sera wall heating from the passive house in Salzburg
To have more comfort and less energy damand, Ing. Heinz Eggert developt 1979 a wall heating for his passive house project.




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