Closed vents—Closed vents in rooms can cause them to be hotter than other rooms. Open windows—Your conditioned air can flow out of open windows, leaving uneven temperatures in your home. Air duct issues—If you have any kinked or crushed supply ducts, certain rooms won't get enough air.
So, if one room is always warmer than the rest of your home, the return air vents in the room could be blocked or damaged. When this occurs, cool air is blocked from coming through those vents in your floor or ceiling, resulting in a less comfortable space.
Rooms farthest from the AC unit might feel warmer than other rooms because you have long runs of ductwork (or your ducts may be uninsulated). Air goes through your ducts, which are in unconditioned areas of your home (usually the attic), and they pick up heat along the way.
The simplest reason that you have uneven home cooling is just that there's something blocking the vent or that you have one or more closed vents. What to do: This is a quick job you can safely do yourself. First, check that all the room vents are open and that there's nothing blocking any of the vents.
Uninsulated or long runs of ducts
Cool air traveling through ductwork in unconditioned areas (like your attic) gains heat. Therefore, long runs of ducts and uninsulated ducts will leave rooms farther away from an AC much warmer. Conversely, rooms closer to the AC will be much cooler.
If it's safe to do so, open doors and windows as much as you can to bring in fresh, outdoor air. While it's better to open them widely, even having a window cracked open slightly can help. If you can, open multiple doors and windows to allow more fresh air to move inside.
In some cases, you may need new windows or better insulation throughout your home. The best solution for many homes is to install a zoned system that will allow you to have separate thermostats on each floor for more granular control of temperature settings.
Poor insulation, inadequate air circulation, and direct sunlight exposure are common culprits. Another possibility is that the room may have more electronic devices or appliances generating heat.
It's advisable to keep your home below 80 degrees throughout the summer. A house that's too warm can be dangerous to people, pets, and the soft surfaces in your home. Set the winter temperature to 68 degrees when you're awake and 62 degrees when you're sleeping.
Your Air Vents are Closed or Obstructed
If you have closed your air vents, or your vents are obstructed by furniture or upholstery, proper airflow is being disrupted. This can most certainly cause some rooms in your home to be hotter than others, while placing extra strain on your HVAC system.
Place your fan so that it faces the opposite wall from where most of the activity takes place in your space. This approach will drive the air to the surface, where it will bounce off, mingling with the rest of the air and cooling the space.
When it comes to where to install air conditioning vents, it is important to keep in mind the location of the vents. Ideally, they should be installed near the ceiling, where they will allow the cool air to circulate freely.
Your Registers Are Blocked
In the rooms that are warmer than normal, check to make sure furniture, toys, or other items do not block the registers (these are the vents that send air into the room) and make sure that the register is open. If your registers are blocked, they cannot distribute air across your room.
Piles of clothing and other kinds of clutter absorb heat and keep it trapped in the room. The less clutter you have in the room, the more available space there is for the heat to disperse and the faster it will cool down. A lot of clutter can also restrict airflow, making it feel even hotter in the room.
Heat intake during these nights comes from things like wind blowing into windows or cracks beneath doors (wind speeds increase significantly at night), warm air passing by your skin (air temperatures are typically higher nearer to the ground), and hot objects within rooms like lights, electronics, appliances (some ...
Ideally, your AC should run for 15 minutes on nice, warm days. Only on those rare triple-digit temperature days should your air conditioner be running almost all the time. If your AC isn't following this pattern, you could have a problem.
The temperature inside your home should not reach below 68 degrees Fahrenheit in any case, as that increases the risk of respiratory disease and even hypothermia if there is prolonged exposure. This is especially the case for people with lung and heart disease.
For most people, the temperature in the bedroom at night should not exceed 72 degrees Fahrenheit, and it should be even lower for people that sleep best in a cool bedroom.