I am super excited about this portion of the construction process. I have never lived in a home with central heat and air. Well there was the two years we lived in a mobile home, but it was older and drafty. Our current home is around 120 years old. I can handle it during the summer as the window a/c units keep it cool enough for me. The winters are not fun though. I am looking forward to it being a fairly constant temperature year round.
Here are a few shots of the heating and air portion of construction. We hired a local company to come in and do this.
The ducts are suspended rather than just left to hang. I do not have much experience with heating and cooling systems, but this is rarely done by companies in my area. According to an Energy Star auditor, this is excellent for efficiency over time.