• -14°C this morning, -4°C now.
• air enters the ventilation at 5°C thanks to the passive ground-coupled heat exchanger (+9°C)
• supplied air is at 21°C thanks to the air-to-air heat exchanger (+16°C)
• extracted air is at 24°C
• discharged air is at 8°C
It consumes around 300W of electricity.
The ventilation maintains the temperature whilst renewing air. The greenhouse heats the house. It's currently at 32°C.