B9exchange
Not sure if I dare admit that we have air conditioning, a once in a lifetime treat for ourselves when I was coming up to retirement. So our windows stay closed except for airing briefly early morning or late evening. Have just returned from a stay in a 15th century cottage, the Tudors knew something about house temperatures, those thick stone walls keep everything beautifully cool!
Me too B9exchange. Just in a couple of rooms. A bit extravagant maybe, but one of the best things we did when we had our house extended. I find excessive heat unbearable so it is well worth having somewhere to escape to.