Dirty air filter—A dirty filter restricts airflow, not letting your home get enough cool air. 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.
The general rule of thumb for a two-story home is that you should set each thermostat two degrees Fahrenheit apart from the other. During the summer, when your AC is running, set the upper floor at the temperature you actually want in your home. Then set each floor underneath that to two degrees warmer.
The reasons your house is cold even with the heat on could be because of poor insulation, your furnace not working properly, rooms with high ceilings, or your heating system doesn't cover the whole house. Each of these issues can prevent your home from properly heating.
Here's what you do: set your upstairs thermostat to your desired temperature goals, and then set your downstairs unit to be two degrees warmer. For most homes, this naturally encourages a temperature balance that's comfortable and right at your desired temperature goals.
The reason your room is so hot can likely be attributed to something causing the conditioned air to be affected before it goes to the designated area. One of the main reasons for this is the presence of leaks in the air ducts feeding the room.
Clogged Air Ducts
If a blockage occurs somewhere within your ductwork, you can count on it affecting the airflow to some part of your home. If a clog is blocking the ductwork connected to a particular room, the air meant for that room could end up being sent somewhere else, resulting in uneven temperatures.
If there is a cold room in your house, the problem has likely been caused by dirty vents, cracked ductwork, worn insulation or faint drafts. Read on to learn how to fix a cold room in your home.
You might have heavy furniture or items covering up your vents, absorbing all the heat. This is a very common reason why one room in a house is always cold, and it's easily solved by simply moving the items away from your vents, allowing an unobstructed flow of warm or cool air.
The average home will stay warm for 8-12 hours after the power goes out. After the first 8-12 hours, most homes will experience a gradual cooling over the course of the next couple of days.
Your upstairs may not be getting all the hot air from your heating system due to inadequately insulated leaky air ducts. The typical home loses 20% to 30% of the air that moves through the duct system due to leaks and holes, according to ENERGY STAR.
Poor air flow, bad sensors, or other broken components can also cause room temperatures to be different than your thermostat setting. The biggest clue that your furnace is the culprit is your heating bill.
Your sleeping environment and the bedding you sleep on are the most common reasons people get so hot when they sleep. This is because your core temperature drops a couple of degrees during the night and sheds heat into your surrounding environment.
Cold air is denser than warm air so it stays on the bottom while warm air rises. That's why the downstairs can feel so chilly while the upstairs is toasty in the winter.
If the first floor of your home is colder in the winter months, keep the dampers on the first-floor vents fully open and only partially open the vents on the second floor to force more of the warm air to enter the first-floor areas.
There may be drafts and pockets of colder air near the floor; The walls are colder and don't emit the usual amount of infrared radiation, so you lose heat due to your body emitting more IR than it receives; You may spend more time indoors and hence have less physical activity, so your body generates less heat.
What causes this? One explanation may be convection currents, or the lack of them. The room's thermostat is likely to be positioned roughly midway between floor and ceiling. On a 20°C day in the summer, the temperature in the room will be within a few degrees of the temperature outside, so you will feel comfortable.