I have better air conditioner performance when I leave my garage doors shut

But my air handler for my HVAC system is also in my garage—it hangs from the ceiling towards the back along the wall shared by my home’s interior

I love the size of my house. I finally have room to store all of my extra belongings and my ever growing comic book collection. Being able to keep everything in climate controlled storage finally—all under one roof, and without extra charges—is a huge benefit to my budget. Plus, for once I’m enjoying the process of selecting furniture and decor to match a particular design scheme instead of just throwing together whatever I can find on the cheap, like I was forced to before. I also have a workbench in my garage that I use for crafts and ceramics. I even have a kiln for firing clay on the opposite side of my garage. It’s almost like a small art studio now after all of the recent additions. Because of this, I tend to keep my garage door open in the afternoons to let in a nice cool breeze while I work. But my air handler for my HVAC system is also in my garage—it hangs from the ceiling towards the back along the wall shared by my home’s interior. I keep having issues with air conditioner performance when I leave my garage door open for long periods of time, making my system take longer to reach the same selected temperatures. No matter what, every time I leave my garage door shut, my thermostat shows the temperature inside my house dropping faster than the days when I’m working in the garage with an open door and in comparable weather. Some people say having an air handler in a garage is unwise to begin with, since the energy waste from this effect is needless if you simply install the air handler indoors instead.

Gas fireplace