When I found out my daughter is expecting my first grandchild, I started making plans to have a house where both she and my grandchild would want to come and hang out. One thing I decided to do was to build a backyard playhouse. I consulted with a guy that sells prefab sheds, and I discovered that he has some that are actually built with the idea of having people using them as additional rooms. He has some that artists have used as studios, men have used as man caves, and plant lovers have used as modified greenhouses. So, why not a kid’s playhouse, right? Anyway, that is the first thing I started to do, and it all began with step one – picking out the model I wanted. It only got more and more involved from there. I got plumbing. An eco toilet. Then I got furnishings that were like life sized dollhouse furniture. Curtains, a fridge, and on and on. People thought I had lost my mind when I called in the heating and cooling company. I was thinking I could put in central heating and cooling and wanted their advice on which kid of HVAC technology would be best. We talked about smart thermostats, central air conditioning, and a water heater for the kid’s plumbing. I learned there is a new kind of air conditioning called a mini-split air conditioner, which I had never heard of before. I think the HVAC salemas thought I was a bit looney, but I don’t care. In the end, I would end up getting a simple window air conditioner from the big box store and cutting out a hole in the side wall to put it in.