We have a 3 level house with different furnances and AC units/controls. The basement isn't an issue for us, but the 2nd and 3rd levels are a big problem thermostat wise for me and my husband. During the summer, I'm lowering the temp and he's raising it. We live in the Southeast and it's hot and humid. Problem continues when it finally starts to cool here. When we get fresh, cool, crisp air, I love opening the windows. He's right behind me shutting them AND turning on the heat. Drives me crazy.