Well, new to me! And it's good to have a hardware expert in the house.

I am soooo glad we have aircon in one room and a portable unit in this one. Even then the portable often can't cope by late afternoon. Today is actually OK. I hold off as long as I can before turning anything on and I haven't yet. Of course it gets really bad upstairs; I can feel the temperature changing when every stair. :-P