I moved this year so haven't really gotten a good feel of my new abode. Previously, I was on the ground floor of a condo. Concrete slabs are cool in the summer and COLD in the winter. With ceiling fans I was quite comfortable in the summer around 72-75 degrees. Air moving makes such a difference. In the winter, I pulled up a dog and/or a quilt and used a space heater in my sewing room but was able to keep the thermostat set at 68 for the rest of the place.