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One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchYou can make a house safer and more comfortable without air conditioning by blocking solar heat, ventilating only when outdoor air is cooler, exhausting indoor heat and moisture, and creating one protected cool room. Fans help air feel less oppressive, but they do not remove heat—and the CDC warns that above 90°F (32°C), a fan can increase body temperature. If your home remains dangerously hot, leave for an air-conditioned public space or cooling center.
Choose the right approach for the conditions
| Method | What it does | Best conditions | Cost and effort |
|---|---|---|---|
| Daytime curtains, blinds or shutters | Blocks solar heat before it enters | Sunny weather | Low; immediate |
| Timed window opening | Replaces warm indoor air with cooler outdoor air | Cool mornings, evenings and nights | Free; immediate |
| Cross-ventilation | Creates a breeze through the home | Outdoor air cooler and safe | Free; immediate |
| Window exhaust fan | Pushes indoor heat outdoors | Cooler replacement air available | Low to moderate; immediate |
| Ceiling or portable fan | Improves perceived comfort by moving air | People are present and heat is not extreme | Low; immediate |
| Bathroom and kitchen exhaust | Removes heat and humidity at the source | After showers or cooking | Low if installed; immediate |
| Cooler cooking | Prevents oven and hob heat | Peak heat periods | Low; immediate |
| Switch off heat-producing devices | Reduces internal heat gains | Hottest hours | Free; immediate |
| One cool room | Concentrates shading and ventilation where people rest | Any weather | Low; immediate |
| Insulation and air sealing | Slows heat entering through the building envelope | All climates | Moderate to high; permanent upgrade |
| Exterior shade and vegetation | Stops sun reaching glazing and walls | Sunny sites | Varies; seasonal or permanent |
| Cool roof | Reflects sunlight and roof heat | Sunny roofs suitable for treatment | Moderate to high; permanent upgrade |
| Water and cooling your body | Lowers body heat and supports hydration | Whenever you feel overheated | Low; immediate |
| Clothing and activity changes | Reduces heat generated and trapped by the body | Peak heat | Free; immediate |
| Leaving an overheated home | Moves you to a safer environment | Indoor temperatures remain dangerous | Varies; immediate |
Block heat before it enters
1. Close sun-facing curtains, blinds or shutters
Cover windows before direct sunlight reaches the glass, especially on the south- and west-facing sides (in the Northern Hemisphere). Interior blinds and curtains help; exterior shutters, awnings and shade cloth usually stop more heat because they intercept sunlight outside the glazing. Keep the coverings closed through the hottest part of the day.
2. Add exterior shade or vegetation
Awnings, canopies, shutters and properly placed shade cloth reduce the sunlight hitting windows and walls. Trees and other vegetation can shade the building and lower temperatures around it, although new plantings take time to mature. Keep installations secure and maintain clearance from roofs, gutters and power lines.
3. Consider a cool roof
A cool roof uses reflective materials or a suitable reflective coating to send more sunlight and heat away from the building. It is a building-envelope project, not a quick fix: confirm that the roof type, coating, local climate and warranty allow the treatment before hiring a contractor.
#1 Best Overall
- AIR CIRCULATION: Designed specifically to pull in fresh outside air and circulate it evenly within your room.
- 3-SPEED CONTROL: Choose between Low, Medium, and High airflow settings using the simple manual dial operation.
- AUTO-LOCKING EXPANDERS: Built-in accordion expanders adjust from 22-1/4" to 33" wide and lock automatically for a secure window fit.
- DUAL BLADES: Equipped with two fans to provide a consistent breeze that improves air circulation in your living space.
- MANUALLY REVERSIBLE DESIGN: Draw cool, fresh outside air into your space, or manually turn the unit around in the window to pull warm, stale air out of the room.
4. Improve insulation and air sealing
Insulation slows heat flow through the roof, walls and floors; air sealing limits hot outside air entering through cracks around doors, windows, loft hatches and service penetrations. Efficient windows and well-sealed doors also reduce cooling demand. An energy audit can identify the upgrades that fit your construction and budget.
Ventilate only when it will cool the house
5. Open windows when outdoor air is cooler
Open windows in the early morning, evening or overnight after the outdoor temperature falls. Close them, along with curtains or blinds, before the outside air becomes hotter than the indoor air. Do not open windows when smoke, pollution, high pollen, security concerns or fall hazards make it unsafe.
6. Create cross-ventilation
When conditions are suitable, open windows or doors on opposite sides of the home so air can travel across rooms. Interior doors can stay open to connect the airflow, but close doors to rooms that are already hot or that you want to keep cool. Cross-ventilation is much less useful when outdoor air is hotter or substantially more humid than indoors.
Rank #2
- VERSATILE REVERSIBLE AIRFLOW - Multi-functional electronic blades can be set to draw in outdoor fresh air, exhaust out indoor warm air or simultaneously exchange airflow for maximum cooling efficiency
- 3 SPEED SETTINGS - Select your optimal airflow with low, medium and high settings for a customized cooling experience
- PROGRAMMABLE THERMOSTAT - Automatically turn the window fan on and off based on desired selected temperature setting and monitor current room temperature on an easy-to-read digital LED screen display with dimmer function
- MADE TO FIT - Designed to fit most double hung, vertical slider and casement windows and includes a built-in accordion extender panel and an additional extender panel to ensure a secure fit ranging from 24" to 36"
- CONVENIENT REMOTE - Control window fan from across the room with included remote control for ultimate convenience
7. Use a window fan as an exhaust fan
Secure a window fan so it blows room air outdoors. Open another window or door on the shaded or cooler side to provide replacement air. The CDC’s National Institute for Occupational Safety and Health specifically recommends this arrangement; never balance a fan precariously in an opening, and keep the electrical connection dry.
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Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →8. Run bathroom and kitchen exhaust fans
After a shower or while cooking, run exhaust fans that discharge outdoors to remove humid, warm air. Check the termination: a fan that merely recirculates air or vents into an attic does not remove heat from the house and can create moisture problems.
Use fans and appliances intelligently
9. Use ceiling or portable fans for comfort
Fans move air across your skin, which can make you feel cooler without lowering room temperature. Use them only while people are present, and turn them off in empty rooms. CDC guidance says not to rely solely on fans and warns that above 90°F (32°C) a fan can increase body temperature; at that point, move to a cooler location rather than treating a fan as protection.
Rank #3
- ADJUSTABLE 3-SPEED CONTROL: Tailor the airflow and optimize air circulation in any environment with the 3-speed functionality of this twin window fan. Choose between low, medium, or high-volume air speed options to create the perfect breeze for your space. Whether you desire a gentle and soothing airflow, a moderate breeze for enhanced air circulation, or a powerful gust of air to cool down quickly, this fan offers customizable settings to suit your preferences. With 70 watts and a voltage of 120 volts, it delivers efficient performance.
- VERSATILE MULTI-FUNCTIONALITY: Select the cooling function to refresh and invigorate the room with a gentle breeze. Opt for the exhaust function to effectively remove stale air and promote better ventilation. Choose the circulating function to activate opposing blade movements on each fan, enhancing air circulation and ensuring optimal airflow distribution. With these versatile multi-function options, you have the flexibility to create the desired atmosphere and airflow pattern in your space.
- FLEXIBLE WIDTH ADJUSTMENT: The accordion expanders of this twin window fan provide adjustable width, ranging from 23-1/2" to 37", allowing it to accommodate most window sizes. Easily customize the width to achieve a perfect fit for your specific window dimensions. Once adjusted, the expanders can be securely locked in place, ensuring the twin window fan remains firmly and stably installed. Enjoy the peace of mind that comes with a secure and snug fit, allowing you to experience efficient and effective airflow.
- EFFORTLESS REMOTE CONTROL: Enjoy the ultimate convenience of the included remote control, which allows you to effortlessly adjust speed settings, select fan functions, and power on/off the fan from a distance. Say goodbye to manually operating the fan and take control of your comfort with just a press of a button. Whether you're relaxing on the couch or tucked in bed, the remote control puts the power of customization right in your hands. Experience seamless and convenient control over your fan, ensuring a comfortable environment with ease.
- VERSATILE WINDOW FAN: Discover the exceptional functionality of the Reversible Twin Window Fan with Remote Control. This window fan offers three modes for optimal airflow: COOL mode uses both fans to bring in cool air, CIRCULATE mode brings in fresh air with one fan while the other exhausts stale air, and EXHAUST mode uses both fans to remove warm or stale air from inside.
10. Cook without heating the house
Use an outdoor grill where permitted, prepare no-cook meals, or cook early in the morning or later in the evening. Minimize oven and stovetop use during the hottest hours, and keep lids on pans to shorten cooking time. Follow fire, food-safety and local outdoor-cooking rules.
11. Turn off unnecessary heat sources
Switch off lights you do not need, unplug idle electronics and avoid running heat-producing appliances during peak heat. Chargers, computers, televisions, tumble dryers and similar equipment all release their electrical input as heat inside the home.
Make one room safer and cooler
12. Create a dedicated cool room
Choose the most shaded bedroom or living room, close its door, cover its windows and keep heat-producing equipment out. Spend the hottest hours there rather than moving repeatedly through sunny rooms, kitchens or upper floors. Keep water, medicines and essential supplies in the room so you can remain there comfortably.
Rank #4
- SMART APP & WIFI CONTROL: Seamlessly connect to your home network and control your fan from anywhere using the Comfort Zone app on your iOS or Android device for cooling down a room before you arrive home
- 3-IN-1 FUNCTIONALITY: Features cooling (intake), exhaust, and circulate modes to efficiently manage your indoor airflow.
- DUAL BLADES: Equipped with two fans to provide a consistent breeze that improves air circulation in your living space.
- AUTO-LOCKING EXPANDERS: Built-in accordion expanders adjust from 22-1/4" to 33" wide and lock automatically for a secure window fit.
- REMOTE CONTROL: Conveniently adjust fan speeds and operating modes from a distance using the included remote.
Cool your body directly
13. Use water safely
Take a cool shower or bath, apply a damp cloth to your neck and arms, or wear lightly damp clothing. Drink water regularly; do not wait until you are thirsty. People with fluid restrictions should follow their clinician’s advice rather than increasing intake on their own.
14. Wear light clothing and reduce peak-hour activity
Loose-fitting, lightweight clothing allows sweat to evaporate. Move exercise, housework and outdoor tasks to the coolest part of the day, take frequent breaks and rest in the designated cool room.
Know when home cooling is not enough
15. Leave for a cooler place
In hot, humid climates, ventilation may not cool a home effectively; shading, insulation and a cooled public location are more dependable. If indoor heat remains severe, go to a library, shopping centre, cooling centre, shelter or another air-conditioned place. Check on older adults, infants, people with medical conditions and neighbours who live alone. Never leave children, vulnerable adults or animals in a closed parked vehicle.
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Quick Recap
Heat-illness warning signs
- Act immediately: confusion, fainting, seizures, loss of consciousness or very hot skin can indicate a life-threatening emergency. Call emergency services.
- Get urgent help: worsening headache, nausea, vomiting, weakness or dizziness require rapid cooling and medical advice.
- Do not wait for symptoms: move to a cooler place early, especially for infants, older adults and people with heart, lung or other medical conditions.
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