[Barrie Yates]

Originally Posted by MargaretR

If you are using a machine that absorbs heat into water by converting it into vapour that is released into room air, that isn't my definition of air conditioning.

You may feel cooler, but will feel sweatier because perspiration from your skin struggles to evaporate into air that is already loaded with moisture.

https://www.ashrae.org/resources--pu...r-conditioning

That principle works very well throughout the USA - known as "Swamp Coolers", where water trickles over aspen wood shavings and air is drawn through the shaving pack (sterilising medium should be used in the water), - they are very effective. In fact they are reputed to be what made much of Florida tolerable. However, they do not work as well in higher humidity levels and it is normal for houses to have both Swamp Coolers and A/C systems.