My husband decided to take on the installation of a window air conditioner, although he had no experience whatsoever in doing such a procedure. He assured me that he had read enough on the internet to figure out how to do it. I made the decision to give him my full support, although I had my doubts. I did a bit of research myself and realized how much is actually involved. For example, when using support brackets to hold the air conditioner in place, the window sill should first be checked for rotting wood or other material. Otherwise, the air conditioner could fall right out. Also, no matter how strong the installation person, it is essential that another person help lift and hold the unit in place since window air conditioners are extremely heavy. One thing that I read made me chuckle, since it stated that the window and the air conditioner should both be measured before making any purchases. I am quite confident that my husband would know that! Then there are sealing materials needed to prevent hot air (and bugs) from entering the room. Modern air conditioners come equipped with extensions to occupy the space between the unit and the window sash, but by filling the cracks with foam (or other HVAC material), the air conditioner will operate much more efficiently…and you won’t have bugs coming in! One last thing that I read made perfect sense, that the installed window air conditioner should be located within six feet of an electrical outlet. The article explained that most modern air conditioners come with a six foot long electric cord, but that adding an extension cord was unsafe. Thankfully, my husband and his brother ended up doing a fantastic job.