we have a sun room and DH put a heater/air conditioner combo in one of the lower windows it just right all the time. of course we don't use it a lot in the winter because it cost to heat or cool it. i thought about using it for sewing but all my stuff would not fit. two machines a 4 by 7 cutting table, shelves p.c. and desk. im in the basement sewing room
mema