Just a follow up from an earlier post about our development of a geothermal probe which works on negative pressure from the house to draw fresh air under the earths crust and into the house.
These are now currently installed in 3 houses where we are doing testing to see how we can optimise the thermal transfers.
It is clear the cooling will be perfect. Heating will help a lot, but a secondary heat source will be required to get the heat to a comfortable level inside the houses - but we will only need to heat from 17degC to 22degC unlike a traditional house of 10degC to 22degC.
While we are also extracting unwanted cold or hot air from inside the house via negative pressure, the outcome of this is clearly looking good. More to come...