Ground-Air Heat Exchangers

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.



Display: List / Grid
AWADUKT Thermo Packages
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..
Starting at £2,804.80
Inc Vat: £3,365.76
Individual parts for domestic systems to adapt or extend Domestic Packages ..
Starting at £22.10
Inc Vat: £26.52
Individual parts for commercial or large domestic systems ..
Starting at £48.10
Inc Vat: £57.72
Individual parts for commercial systems ..
Starting at £68.57
Inc Vat: £82.28

If you have special requirements or cannot find the answer to your question on our website, do...


The Passivhaus Store is wholly owned by
Passivhaus Homes Ltd.,
company no. 0657 9620


Need information?

Please visit our Help, Advice & Downloads page.

Passivhaus Homes are not responsible for the 

accuracy of any third party content.



Passivhaus Store mostly ships direct from supplier to you to minimise transport, reduce lead-in time and avoid costly double handling of goods. If your order contains products despatched from more than one source, our delivery cost calculator will add up each delivery charge to give you a total delivery cost. Note that our policy is simply to pass on the cost of delivery to you, not to use delivery charges to make hidden profits.

Read more about delivery here

Copyright 2014 Passivhaus Homes Ltd