We bought this unit to both heat and cool a newly finished sun porch off the back of our house. It's August now in Northern Alabama with high temps around 90. We open the french doors to our house and let the cool mode of the unit spread the cool air in the room. It is fantastic. The room now is around 79-80 degrees and very comfortable. When winter hits, we will be able to heat the room. So... we have a 4 season sun porch where we live much of the day.