Keep as much heat out as possible.
- Hot air and sunlight coming in through windows heats up the inside. During the day, close the windows and shut the curtains and blinds.
- The exception: If some windows are shaded during the daytime, by trees or shadows from nearby buildings, open them.
- If you can open two windows during the day, you will get a cross-breeze that will help the room cool down.
- When it’s cooler outside than inside, perhaps at night, open windows to allow cooler air to come inside.
Remember that heated air rises and cooler air sinks.
- You may be more comfortable downstairs than upstairs in hot weather. Basements are naturally cooler than attics.
- Switch the direction of ceiling fan blades when the seasons change. They should be spinning counterclockwise in hot weather. This creates a cooling downdraft. Remember to turn the fan off when nobody is in the room.
Lower the humidity.
- Moisture in the air doesn’t really add to the temperature. However, it does make the air feel hotter. Remove the excess humidity with an energy-efficient portable dehumidifier to make the room feel cooler than it is.
Don’t add more heat.
- Indoor appliances such as the dishwasher, clothes dryer and washing machine, oven and stove add heat to the air. Cook food in the microwave or outdoor grill if possible.
- Wait until nighttime when it is cooler outside to use other appliances.
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