At a local camp that I like to attend, they have a huge building where they conduct meeting and speeches during the Summer.
Though the section has a stage and many seats, it is technically outside because there are no walls on the side of this building.
The main focus of this section is to supply seating and roof over your head while you listen. However, separate from air conditioning, that section was uncomfortably hot. I would rather have stood in the sunlight than be trapped in that area. During the Wintertime, no amount of space gas furnace could have hoped to try to make anybody comfortable. However, this year, when I returned to visit the locale, they told us that they installed huge a/cs and furnaces for the events. Apparently, they have outdoor HVAC that is supposed to make almost everyone comfortable. I just don’t understand the plan behind it. I can’t imagine how several thoUSAnds of dollars that Heating and A/C device cost, and yet you are using it to heat and cool a building that will consistently lose that temperature. Essentially, you are just heating the entire campus! There has been a discussion of closing in this entire building with walls, however then it would lose the entire purpose of having an outdoor session. Some people have recommended installing folding walls to trap the heat or cool air while a session is going, however folding them down when the weather is nice. Either way, I wouldn’t want to be paying the electricity and gas bill to use that Heating and A/C equipment!