I am usually too warm in my sewing room too. I have bare feet, legs, and arms while sewing. Now that it is winter my sewing room is set to 54 degrees which is perfect. Once I get the iron going the room is a comfortable temperature for me. Last summer was a different story! I moved a box fan so that it was blowing on me where ever I was working: the sewing machine, the cutting station, the ironing station, etc.. The fan really works to make me comfortable. I'm sure it is just blowing hot air on me but it is cooling none the less. I hope you find a solution - I really hate being too warm.