I have been working as a certified heating and air conditioning specialist for about 4 years now. And tomorrow is going to be the very first time ever that I am going to have to install a rooftop HVAC system! I have never even touched a rooftop heating and air conditioning system before. I have faith that I will be able to install this rooftop central heating and air conditioning system with the help that I will have with me, it will be the same as if I was installing a basic residential central heating and cooling unit. But again, at the same time I do not know. This could be way harder for all I know. I have to admit that I am a little nervous about it all. But I will get through it and I will have the rooftop heating and air conditioning system installed with full success! The hardest part I think is actually going to be getting the rooftop central heating and air conditioning system onto the roof itself! But we actually have special equipment for that so we do not risk killing ourselves or getting seriously injured in the process. It is certainly going to be an experience, that is for sure. But after I do this one time, at least in the future I will have no problems installing rooftop central heating and air conditioning system units. Just like anything, after you have great success doing something the first time, if you were to do it again it will be easy and smooth as ever.