 Now, another side note on this, if you're putting in a new HVAC system in, talk to your HVAC professional about going through and doing a zone system. And that's what I did in my house. So I have two zones. I have upstairs and downstairs. So I have two thermostats and two fan controls, and it actually has damper controls. So it turns off the upstairs when I want to. So what's cool with that is, is on a hot day, it could be 70 degrees downstairs. I don't need to have the AC on down there.