I am sure that most of you can relate to what I am going to say. My father, like most people’s, was always yelling about leaving the lights on, forgetting to shut the door, or standing with the refrigerator open too long. When I was a kid I used to find it very annoying and never knew what the big deal was He used to say that he wasn’t working to heat or cool the outdoors and that light switches went two ways for a reason. As a parent and homeowner myself now I realize how important it is to conserve energy and save the wear and tear on the appliances. After all these things are very costly and none more than your HVAC unit. If you are constantly leaving the windows or doors open you are forcing your system to run harder. This can lead to more repairs and having to replace it sooner than you expected. As my kids run in and out, open and close the fridge a hundred times a day, and leave rooms without shutting off the lights, those same phrases that my dad used to yell through the house are now coming from my own mouth. Now I watch as my own children roll their eyes and ask me what the big deal is. When they say and do these things I just smile inside and think of the day when they will come to the same realization that I have. These things have echoed through the generations from the first time an HVAC system was installed and are sure to continue in the future too.