Which window to put AC in?

Author: Prof. Ahmad Emard V  |  Last update: Thursday, May 28, 2026

Installing the air conditioner in a shaded window will help it operate more efficiently. Choose a north-facing window since it'll be in the shade for most of the day. The window you select for installation needs a suitable power outlet nearby.

Which window should I put my AC unit in?

Select the window that can best accommodate an AC unit.

Most window ACs are designed for use with standard double-hung windows, which have two operable sashes that slide up and down. There are also AC units made for sliding windows, which move from side to side, and casement windows, which tilt outwards to open.

Where is the best place to put a window AC?

The best place is to put the AC unit is on a window opening where it will fit... On a window that can support the unit that is either on the north or south facing side of the the house.

Is 72 a good temperature for window air conditioning?

This is more of a personal question, as different people feel comfortable at different temperatures. Since 72 degrees is generally agreed upon to be an ideal indoor temperature, most people would probably still feel comfortable setting their AC units slightly higher than this, perhaps at around 75.

What should I set my AC to in summer?

What is the Best Thermostat Setting for Summer Air Conditioner Use? Energy Star recommends the following thermostat temperatures for your air conditioner in the summer: 78°F during the day if people are home. 82°F at night if people are home.

Air Conditioner Brackets

Does keeping the AC at 72 save money?

Best AC Temperature Settings While You Are Home

As you consider the most comfortable room temperature for your lifestyle and family, keep in mind that for each degree that you set your thermostat above 72 degrees, you can save up to 3% on your energy bill.

Where not to install an air conditioner?

Keep it away from trees and dirty areas

Although shading is necessary, placing it near trees or driveway can attract leaves and dirt inside the unit.

What is the best temperature for AC in a room?

What is the ideal temperature range for an AC? The ideal temperature range for an AC is typically between 72°F and 78°F (22°C to 26°C), ensuring comfort and energy efficiency. This range maintains a pleasant indoor climate without excessive energy consumption.

What side of the house is best for air conditioner?

The air around the AC unit, which is cooled and pumped into your home, is also hotter and gives the AC even more work to do. The north or east side of your house is the best place for the AC, preferably beneath some shade.

Will a window AC unit lower my electric bill?

EnergySage estimates that a typical window unit costs roughly $320 (CAD 428) per year to run in areas with a 5-month hot season. Therefore, running a window AC will likely add around $27 (CAD 36) on average to your monthly energy bill.

What is the most efficient way to use a window air conditioner?

Utilize Curtains or Blinds to Block Sunlight

During the hot summer months, one effective way to increase the energy efficiency of your window air conditioner is by utilizing curtains or blinds to block sunlight. This simple yet effective method can help keep your room cool and reduce the strain on your AC unit.

What happens if window AC is tilted too much?

Vibration and movement: When your AC unit is tilted, it can vibrate excessively and even move off its pad. This can damage the unit itself and lead to costly repairs.

Where should window AC be placed?

In a 10 feet high room, a split type AC should be installed at 7 -8 feet for the best cooling performance. For a window type AC, the best height is 3-4 feet from the floor. If you are fixing the AC very close to the wall or in an airtight room it will trip due to high head pressure, as heat dissipation can't happen.

Where should an air conditioner be placed to efficiently cool a room?

If possible, it is best practice to install your air conditioner on the north or east side of your home. This will ensure that the unit stays out of sunlight during the hottest parts of the day. Keeping your unit in the shade is essential for energy and cooling efficiency.

Where is the best spot for window AC?

A window AC that is shaded can run at 30% less electricity to cool down a space, compared to a unit that is placed in direct sunlight. Place your unit where the air flow can move about freely. In other words, don't install your unit behind a piece of furniture or place anything directly in front of it.

Is 72 a good temperature for air conditioning?

Setting your air conditioning to 72°F is generally considered a comfortable indoor temperature for many people. It strikes a good balance between comfort and energy efficiency, making it a popular choice for residential settings.

Is 75 degrees too hot to sleep?

Research shows sleep can be disrupted by temperatures anywhere below 65 degrees Fahrenheit or above 75 degrees Fahrenheit. But for most people, heat interferes with sleep more than cold does. Sleep experts believe the best temperature for great sleep is between 68-72 degrees Fahrenheit.

What AC temperature is good for sleeping?

Sleeping in a room with the air conditioner set to an appropriate temperature is important for quality sleep. The ideal AC temperature for sleeping is around 65°F (18.3°C). However, this may differ between individuals, who might find their ideal AC temperature lies between 60 and 67°F (15.6 and 19.4°C).

Where should AC be placed in a bedroom?

The best place to install air conditioner in the bedroom is just over the bedhead or on the side of the bed so that it does not blow straight onto the bed, which can create dry lips and headaches.

Where is the best place to put the air conditioner and why?

In ideal situations the air conditioner should be installed on the north or east side of you home, so that your home can naturally shade your air conditioning unit from the sun during the hottest part of the day. The next-best option is under the shade of a tree, preferably one which drop little debris.

Is it better to have two small air conditioners or one large?

Energy Consumption and Savings: While two AC units might initially seem like they would consume more energy, they can actually offer savings by allowing you to cool only the spaces you're using. For example, you can shut off the upstairs unit when it's not in use, reducing overall energy expenditure.

How cool should my house be if it's 110 outside?

For many of us, 70 degrees is the ideal indoor temperature, but when it is close to 100 degrees outside, your AC unit will be working quite hard to meet these expectations. Consider setting your thermostat at 75 degrees to 80 degrees in your home if the outside temperature is approaching triple digits.

Is it better to run AC all day or just at night?

leaving it on all day and night is better for the HVAC system because it's less taxing. Should you turn off your AC when on vacation? HVAC experts agree it's better to keep your AC on when you're on vacation, especially if you don't plan to leave any windows open.

How long should it take to cool a house from 90 to 72?

Cooling a house from 90 degrees to 72 degrees typically takes about 2 to 4 hours, depending on various factors.

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