Back when i used to be a certified heating and air conditioner specialist I will never forget the hardest Heating and A/C installation job I ever had to do.
That was the installation of a rooftop Heating and A/C system.
Rooftop heating and air conditioner units are way harder to install than your typical residential heating and cooling system! There is so much more entailed in the installation process. On top of that, having to haul that sizable and drastically heavy heating and air conditioner component up to the roof of a commercial building is also quite a job. I almost have an anxiety attack just thinking about what we had to do! It was just myself and others and 1 assistant heat and cooling system specialist and we had to put this thing on a pallet and then hook that onto a dollie. Following that it was hauling it up several flights of stairs. Of which while in that myself and others and the other heating and air conditioner worker nearly got ourselves killed, but every one of us almost lost control of the rooftop heating and air conditioner method and had that 2 ton things knock us down the several fights of stairs, crush us, and then blow up the building! I am not kidding you on this. It was a real major hassle and headache. I am so glad that out of our entire 30 years in the heating and air conditioner business I never had to install another rooftop heat and cooling system component again after that 1 and only time!