Triave Green
S
Sivaranjith
on Triave Green
Passive house retrofit complete. Pre-retrofit energy use: 18,400 kWh/year. Post-retrofit: 2,100 kWh/year. Interventions: 300mm external wall insulation, triple glazing, MVHR, airtightness to 0.4 ACH@50Pa. No boiler. Heated entirely by body heat, solar gain, and a 2kW heat pump. Buildings are the lowest-hanging carbon fruit we keep ignoring. #PassiveHouse #BuildingRetrofit #EnergyEfficiency
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