Ground-air heat exchangers (also known as earth tubes) offer an innovative method of heating and cooling a building and are often used on zero carbon / Passivhaus buildings. Ventilation air is simply drawn through underground pipes at 1.5m deep which pre-heats the air in the winter and pre-cools the air in the summer. AWADUKT Thermo pipework was specifically designed for this application with its integrated antimicrobial silver layer.
AWADUKT Thermo is a ground-air heat exchanger system, also known as earth tubes, for pre-tempering ventilation air. Ventilation air is drawn through underground pipes buried at a depth of 1.5m, which pre-cools the air in the summer and pre-heats it in winter, using the near constant temperature of the ground (7-13°C).
The system is ideally linked up with a mechanical ventilation unit with..
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At Passivhaus Store, we offer specialist, hard to source, building products designed for ultra-low energy builds: Passivhaus, EnerPHit, AECB Silver, Code for Sustainable Homes and BREAM. We also offer many products suitable for restoration and thermal upgrading of existing buildings, including period properties. Our online store is open 24 hours a day and you can browse and add products to your shopping basket and buy them conveniently online.