One thing I have observed when it comes to the 2 types of commercial heating plus s, is that a single os more powerful than the other. I am speaking of the difference between rooftop Heating plus A/C systems plus your basic commercial heating plus s. With rooftop heating plus s, you get more power for some reason. At least that’s what it feels like. It seems that in every commercial building I have been in that had a rooftop heating plus , it was much more cooler or warmer (depending on the time of year). While in buildings that had correct commercial heating plus s, it was nice, but not as powerful. I am speaking of course as a general consumer. I am not a corporation owner nor do I toil in a building that has a rooftop heating plus plan to compare to. The office I toil in has correct commercial heating plus This is what I am comparing it to. I may really do some more research into this on my own time because I am seriously curious if it is just me, or if what I guess is actually correct, then never the less, my opinion on the matter sticks as rooftop commercial heating plus s are the best choice of choice to go with if you are going to set out to heat plus cool a commercial building. If you have a smaller building, then of course your basic central heating plus plan would toil just good as it would in a lake home or small store.