Can you imagine being on an airplane without HVAC units

I travel on a plane multiple times per year, and I would never want to have to sit in a plane without a heating system to keep me warm

Did you know that at one point, airplanes existed without having a heating system in them? When we fly on airplanes, we rely heavily on the HVAC unit on the plane. In fact, in most airplanes, there are multiple vents above each person’s head that allows cool air from the HVAC unit to keep us comfortable. Technically, airplanes mainly use a heating system on their plane. They don’t actually need an air conditioner on the plane because the air outside is freezing cold at that height. Without the HVAC unit, most of us would have to bundle up because we would be very cold. In fact, people used to ride on planes before they installed heating systems on them. If you were the pilot of a plane before they had heating systems, you would have to wear thick suits to stay warm. It was even more difficult to be a passenger on a plane before the HVAC units were created. Obviously, back then, planes were not used for public travel which is why HVAC units were not necessary. However, I am thankful that they have HVAC units on planes now. I travel on a plane multiple times per year, and I would never want to have to sit in a plane without a heating system to keep me warm. I like that most planes are warm, and they have the vent in the HVAC unit that pumps in the cold air from outside. The ability to be able to control the temperature in each seat is nice. I wouldn’t ever want to go back.

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