Archive for November 23rd, 2025
Passivhaus
The standard says, Space heating <= 15 kWh/m²/yr, an airtightness limit of 0.6ACH@50Pa (air changes per hour at 50 Pascals), total primary energy demand <= 60 kWh/m²/yr. For our house, at 244m², this works out at: Heating <= 3,660 kWh over the year. Total primary energy need <= 14,640 kWh over the year. This year […]
Posted: November 23rd, 2025 under Driving off the grid.
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