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
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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.
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| Air collector roof
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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.
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| Fourfold glazing for u=0,8 thermal insulation
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There was 1980 no offer for thermal insulation glazing like today. Ing.Heinz Eggert constructed doors and windows himself.
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| Night insulation for the windows
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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.
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| Sera wall heating from the passive house in Salzburg
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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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| Low energy house after 23 years
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23 years degraded the passive house performance. Special the air tightness of the windows worsened. The energy demand doubled.
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