atec 7 7" "atec 77 wrote:
As an example of waste air conditioning
we looked at the cost and decided no installing instead an idea I saw
on one of the English programs about house refurbishment
Pumping air through buried pipes results in very cool air for the
cost of burning z very small light bulb and a tiny percentage of a/c
It did involve some trenching and finding some plastic pipe being
still cheaper than just the install labour cost of one split a/c
over all an immensly satisfing outcome at least 4 times a year


Great idea!


( 2 metres down the earth never gets above 5 Deg C) in Brisbane

I find that impossible to believe as the air temperature would hardly ever
or never get below that.

Otherwise you are telling me there is a BIG heat sink buried under the city
because if the soil is being heated by air at 15-35C from above that heat
would have to go somewhere if the subsoil is at 5C. Sorry the physics makes
no sense. Perhaps it's a typo?

David