But, before insulation and dry wall, the inspector indicated that we need to have a fixed A/C system, either tie to the old one or getting a new separate one. I guess a separate one is more convenient and cost effective. But, it has to wait for the next year.
By the way, I am going to connect the new water, vent and drain to the old existing one this afternoon. And, I believe, for this year, I am done with the addition. I will start working on our yard and ready to leave for the winter.
Stay tune on our new addition next year.