echnidna
2nd February 2007, 12:29 PM
Way back in the olden days there was a movement to passively heat/cool a house using underground thermal mass of the soil itself. The process was sometimes called "cool tubes".
By constantly changing the air in a house over a 2 hour cycle the house was supposed to be kept in a median temerature range.
But 20 years down the track cool tubes seem to have died out, is there any modern info available?
By constantly changing the air in a house over a 2 hour cycle the house was supposed to be kept in a median temerature range.
But 20 years down the track cool tubes seem to have died out, is there any modern info available?