LOL I sat here for a moment and needed to *think*.
70 degrees = 21C
72 degrees = 22C
74 degrees = 23C
76 degrees = 24C
I use mine sparingly even though we have like 6 months of summer here. It just costs too much to run these days. I try to have it on 24C/76F but sometimes I cheat and put it on 19C/66F when I'm really fed up with the heat and humidity. lol I put my feet in a bucket of water when I start to melt. Not a good look, but it works.