67
Alternative to Air-conditions?
(lemmus.org)
The space to discuss Solarpunk itself and Solarpunk related stuff that doesn't fit elsewhere.
Join our chat: Movim or XMPP client.
That is kinda like earth tubes isn't it? Which you could retrofit. More powerful cooling can be achieved by using the tubes as part of a geothermal heat pump. Bonus there is that its also even more efficient than a regular heat pump in winter too.