VMC double flow from A to Z (save energy)

energy saving, double flow ventilation better than single flow vmc?
heating hands with good house ventilation.
🔻 More info in description 🔻
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➜ ABOUT FREDO BRICO:
I am Frederic.
My passions are nature, animals, #DIY and creations of all kinds, #ecology, energy, #lowtech #technologies
I have several years of experience in carpentry and glazing, and more particularly in construction.
I will therefore present to you all my productions often linked to #solar energy, #heating, #solar
always looking for new experiences to make the best use of the energy that is offered to us.
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➜ M O N M A T E R I E L
microphone for phone: amzn.to/3gzVgC4
pvc sheath - insulated - diameter 80 mm: amzn.to/3Fdut90
pvc sheath - insulated - diameter 125 mm: amzn.to/3VPWx8x
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➜ R E F O U V E Z M O N O N T R E S E A L S :
FACEBOOK :
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I N S T A G R A M: / fredo_brico
➜ S O U T E N E Z THE C H A I N E :
T I P E E: fr.tipeee.com/...
U T I P: One day, maybe...
FREDO BRICO