Rarely will you find a fresh-air intake on a residential Heating and Air Conditioning system, although some commercial systems have them so carbon dioxide levels inside don’t get out of control
When I started to get older, I realized that I had spent years of my life believing a lot of false information that I was taking for granted. For instance, I constantly assumed that cooking any food long enough will remove bacteria or harmful pathogens from it, but that simply isn’t true. Some bacteria release toxins that cannot be removed from a piece of meat once they’re present in it. You can’t cook the tainted meat until it’s leather and expect it to be safe just because you exposed it to so much heat. The toxins will stay in the meat if they get there to begin with, that’s why it’s so important to be careful storing and handling your meat products. Some grocery store employees will take their time storing packages of raw meat and will leave a huge cart standing out for 20 or 30 hours at a time. This is undoubtedly long enough to cause problems with the meat if the temperature inside jumps high enough. These are things that I learn after years of ignorance, just the misconceptions I believed about heating and cooling systems. I thought that all residential a/cs pulled in air from outside, but it’s actually the opposite. Rarely will you find a fresh-air intake on a residential Heating and Air Conditioning system, although some commercial systems have them so carbon dioxide levels inside don’t get out of control. Instead, residential Heating and Air Conditioning systems are a closed-loop, and the condenser component you see outside functions as a heat exhaust for the coolant as it leaves the house through the refrigerant lines. The a/c component proposal literally transfers heat energy from your indoor air to the outdoor air.