To stop the draft from a window air conditioner, seal gaps around the unit with weather-stripping or foam tape. For additional measure, use plastic window insulation or a draft stopper.
Window air conditioners can be a lifesaver during hot weather, but they may cause a significant draft. This not only makes the room uncomfortable but also makes the air conditioners work harder than they should. An extra draft created by an air conditioner can drive up energy bills and negate the unit’s effectiveness.
To get the most from your air conditioner while keeping drafts at bay, it is necessary to take some measures. In this article, we will discuss various ways to stop the draft from a window air conditioner, including simple and effective solutions that would keep you cool and comfortable throughout the summer season.

Weatherstripping
Explanation Of What Weatherstripping Is
Weatherstripping is a material used to seal openings, such as gaps around a window, to prevent air from passing through. This helps to improve the energy efficiency and comfort of your home by reducing drafts, noise, and moisture. When it comes to window air conditioners, weatherstripping is an effective solution for preventing drafts and improving air quality by minimizing the amount of outside air that enters your home.
Types Of Weatherstripping Materials
There are several types of materials available for weatherstripping your window air conditioner. Some of the most common materials include:
- Foam tape: This material is easy to apply and can be used on virtually any surface, making it a great option for sealing gaps around your window air conditioner.
- V-strip: Made of durable rubber or vinyl, this type of weatherstripping is self-adhesive and can be used on both sides of your window.
- Felt: Often used for sealing sashes and in-between moving parts, felt is an inexpensive and easy to install material that can also be used for sealing air conditioning units.
How To Measure And Cut Weatherstripping For Your Window
Before you begin to install your weatherstripping, you need to make sure you have the right amount of material. That’s why it’s important to measure the area you want to cover. Here’s how to measure and cut weatherstripping for your window:
- Measure the length and width of your window
- Add up the length of all the sides you want to seal
- Cut the weatherstripping material according to the measurements you’ve taken
Step-By-Step Instructions For Installing Weatherstripping
Once you’ve measured and cut your weatherstripping material, it’s time to install it. Here’s a step-by-step guide to help you get started:
- Clean the area around your window air conditioner where you plan to apply the weatherstripping.
- Start at the top of the window and work your way downward.
- Peel off the backing on the weatherstripping and attach it to the top of the window.
- Pull the weatherstripping tightly, while pressing it down as you move along the length of the window.
- Use scissors or a utility knife to trim any excess weatherstripping material.
- Repeat the process for the sides of your window.
- Check for any gaps that may have been missed or sealed improperly.
By following these simple steps, you can effectively stop the draft from your window air conditioner and ensure your home is energy-efficient and comfortable.
Window Insulation Film
Window Insulation Film: An Overview
When it comes to keeping your home cool in the summer, window air conditioners are both effective and popular. But blockages from drafts caused by air leaks around the windows can make your ac unit work harder and push your electricity bill’s cost to skyrocket.
A window insulation film can put an end to that problem.
Explanation Of What Window Insulation Film Is
Window insulation film is a thin plastic sheet that forms an effective barrier against heat transfer and drafts from entering your home. The film stretches tightly across the window, creating an airtight seal. The added insulation helps retain cool air inside in summer months and helps exclude cold drafts from outside during colder months.
Here are some benefits of using this type of insulation film:
Benefits Of Using Window Insulation Film
- It’s economical and energy-efficient
- It’s easy to apply and remove
- It can reduce drafts, lower energy bills, and improve indoor comfort levels
- It won’t damage the window or frame, and it can last for years
- It can also provide an extra layer of privacy while still allowing light in
How To Apply Window Insulation Film
Applying window insulation film is surprisingly easy to do. Here is how:
- Start by cleaning your window frames with soap and water and letting them dry.
- Measure the dimensions of the window.
- Cut the film several inches larger in both the length and width than the window measurement you took.
- Peel the backing off one corner of the film. Slowly stick the adhesive side of the film to the window frame.
- As you move the film across the window, smooth out any wrinkles or bubbles. Use a hairdryer or heat gun to eliminate any remaining creases.
- Repeat for each window in your home where insulation is desired, and you’re done.
Comparisons Of Different Brands Of Window Insulation Film
When it comes to choosing a brand of window insulation film, the market offers different options to fit your window sizes and budget. In general, each brand’s products are fairly similar, but here are some brands that stand out:
- 3m window insulator kit
- Duck brand indoor window insulation kit
- Frost king shrink film window insulation kit
Choosing the right window insulation film can be an effective and affordable solution to drafty and energy-inefficient windows. Remember to clean the window frames adequately to ensure the film adheres well. You can enjoy lower energy bills and a more comfortable home environment.
Foam Tape
Windows are an essential part of every home, letting in light and air when needed. However, during hot days, a window-mounted air conditioner becomes necessary, and with it, a draft. If you’re looking for a way to stop a pesky draft from getting into your room, foam tape is the solution.
Explanation Of What Foam Tape Is
Foam tape, also known as weatherstripping tape or sealant tape, is a self-adhesive tape made of foam material. It is an excellent insulating material that seals gaps and prevents air leaks. Foam tapes are commonly used in cars, boats, and homes to seal the gaps and block drafts.
How To Measure And Cut Foam Tape For Your Window
Before applying foam tape, you need to measure the size of the window where the air conditioning unit is installed. The following steps will guide you through the process:
- Measure the width and height of your window accurately using a tape measure.
- Cut the foam tape to match the measurements you just took. Be sure to use a cutting tool like a utility knife or scissors to cut the foam tape cleanly.
Step-By-Step Instructions For Applying Foam Tape
After cutting the foam tape to the correct size, the next step is to apply it to your window. Follow these steps:
- Clean the surface – before applying the foam tape, ensure that the surface of the window is clean and dry.
- Peel off the backing – remove the backing from the foam tape, revealing the adhesive backing.
- Apply the foam tape – carefully apply the foam tape to the frame of the window’s exterior, starting from one corner of the air conditioning unit.
- Press the tape down – use your fingers or a flat tool to press the tape firmly against the window’s frame, ensuring it adheres correctly.
- Repeat the process – repeat the process for all the sides, making sure that the foam tape is in place and secure.
- Inspect the seal – after you’ve applied the foam tape, check that the foam tape is secure and in place, and there are no gaps where drafts can get through.
These easy-to-follow steps guarantee an effective seal, preventing drafts and keeping your room temperature comfortable all year round. Say goodbye to drafty rooms and make the most of your window-mounted air conditioning unit with foam tape.
Caulking
If you’re feeling chilly air coming from your window air conditioner, chances are there’s a draft. A draft means your ac unit is operating inefficiently and raising your energy bills. Fortunately, caulking can help. We discuss caulking as an effective method to stop drafts from your window air conditioner.
Explanation Of What Caulking Is
Caulk is a sealing material used to prevent air, water, or pests from entering your home. It is a flexible, rubbery material that expands and contracts with temperature changes. Is ideal for sealing gaps and cracks around doors, windows, and air conditioners.
Different Types Of Caulking Materials
Different types of caulks are available in the market, but only a few are suitable for sealing gaps and cracks around air conditioners. Here are the three types of caulking materials to consider:
- Acrylic latex: Easy to apply and can be painted. It offers a strong seal but can shrink over time.
- Silicone: Long-lasting and durable, silicone caulk can withstand extreme temperatures and exposure to water. However, it is not paintable.
- Polyurethane: Provides an effective seal and sticks to most surfaces. However, it can be difficult to apply.
How To Prepare The Area For Caulking
Before you apply caulk, it’s essential to prepare the surfaces to ensure adhesion and a tight seal. Here are the steps to follow:
- Clean the surfaces: Use a sponge, water, and mild detergent to remove dirt, dust, and debris from the area you plan to caulk. Allow the surface to dry before caulking.
- Remove old caulk: Use a caulk-removing tool to eliminate the old caulk and clean the surface with denatured alcohol.
Step-By-Step Instructions For Applying Caulking Around Your Window
Here is how to apply caulk around your window air conditioner:
- Purchase the right caulk: Make sure to choose the correct type of caulk that suits your particular needs. Consider environmental factors such as humidity and temperature.
- Cut the tip of the caulk tube: Use a sharp knife or a pair of scissors to cut the tip of the caulking tube to an appropriate size.
- Apply the caulk: Hold the caulking gun at a 45-degree angle and apply an even bead of caulk along the gap or crack.
- Smooth out the caulk: Use a caulk smoothing tool, a putty knife, or your finger to smooth out and remove excess caulk.
- Allow the caulk to dry: Read the caulk’s label and allow it to dry for the specified time indicated on the package.
Caulking is an effective way to prevent drafts from your window air conditioner and improve your home’s energy efficiency. Follow these simple instructions to learn how to apply caulk like a pro.
Window Coverings
Explanation Of How Window Coverings Can Stop Drafts
Window coverings are an effective way to stop cold drafts entering your home or office. They are especially useful for windows that are not properly insulated or have gaps. Window coverings act as a barrier that prevents outdoor air from entering your space, keeping you warm and cozy.
Types Of Window Coverings That Can Be Used
Several types of window coverings can be used to prevent drafts from coming through windows. Some of the most common options include:
- Heavy curtains: Thick curtains made of materials like wool, velvet or microfiber are perfect for keeping drafts out.
- Cellular shades: These are designed with pockets that trap air, providing another layer of insulation and keeping the internal temperature of your space comfortable.
- Insulated drapes: These specialized drapes have an additional layer of insulation built into their design, ensuring that drafts are kept at bay.
- Weatherstripping tape: This is a flexible self-adhesive foam tape that can be applied around windows to create an airtight seal.
How To Install Window Coverings
Installing window coverings depends on the type of covering you choose. For heavy curtains, it is essential to install a curtain rod that can handle the weight of the curtains. Cellular shades and insulated drapes can be hung like any other window treatment.
Weatherstripping tape is applied around the perimeter of the window frame, ensuring that drafts are kept out.
Examples Of Window Coverings That Work Well
Here are some examples of window coverings that are both effective and stylish:
- Blackout curtains: In addition to blocking out light, blackout curtains also prevent drafts from entering your space. They come in various styles and colors to add beauty to your room.
- Honeycomb shades: These shades are an excellent insulator as they trap air in their honeycomb-shaped cells, making them a perfect candidate for conservation of energy.
- Magnetic window insulation kit: A window insulation kit includes a clear shrink wrap film that can be applied to the inside of a window frame with supplied double-sided magnetic tape, creating an air pocket that acts as an insulator.
Window coverings are an easy and cost-effective way to stop drafts from a window air conditioner. They not only prevent drafts from entering your space but also add value to your home décor. Consider the type of covering that’s best for your needs to keep cozy this winter.
Fan Direction
Explanation Of How Changing The Direction Of Your Fan Can Help Stop Drafts
Have you ever felt a draft coming from your window ac unit during those hot summer days? If the answer is yes, then you might be dealing with improper airflow. Fortunately, by simply changing the direction of your fan, you can help reduce or even eliminate these pesky drafts.
How To Change The Direction Of Your Fan
Changing the direction of your fan is a simple process that can be done in just a few steps. Here’s what you need to do:
- Locate the fan switch on your ac unit.
- Flip the switch to change the direction of the fan blades.
- Wait a few minutes for the air to circulate in the new direction.
That’s it! By changing the direction of your fan, you’ll be able to redirect the airflow and prevent drafts from seeping through your window.
How Different Directions Affect Air Flow
Changing the direction of your fan can have a significant impact on air flow inside your room. Understanding how each direction affects air flow can help you make the right choice for your specific situation. Here’s what you need to know:
Clockwise rotation:
- Pulls air upwards towards the ceiling.
- Creates a gentle breeze and is ideal for hot summer days.
- Reduces drafts in the room.
Counterclockwise rotation:
- Pushes air downwards towards the floor.
- Creates a powerful breeze and is ideal for circulating warm air during colder months.
- Helps distribute cool air more evenly in larger rooms.
By considering the direction of your fan blades and adjusting them accordingly, you can optimize the airflow in your room and eliminate any drafts. It’s a simple and effective way of making your indoor space more comfortable and enjoyable. So go ahead and give it a try!
Seal Air Leaks In The Room
Explanation Of How Sealing Air Leaks In The Room Can Help Stop Drafts From The Window
Sealing air leaks in a room can be an effective way to stop drafts from a window air conditioner. When cool air from the air conditioner escapes through leaks in the room, hot air from outside will flow in, creating a draft.
By sealing these leaks, you can minimize the amount of airflow in and out of the room, which will help to increase the efficiency of your air conditioning and make your room more comfortable.
How To Identify Air Leaks In The Room
It’s important to identify air leaks in your room before you can seal them off. You can identify air leaks through various methods, including:
- Visual inspection: Conduct a visual inspection of the room, paying close attention to areas where the walls meet the floor or the ceiling. Look for cracks or gaps that may indicate a leak.
- Hand test: Use your hand to feel for cool air flowing in from a window, door or recessed light fixture.
- Candle test: Light a candle and hold it near potential leaks. If the flame flickers, you have found an air leak.
How To Seal Air Leaks In The Room
After identifying the air leaks, the next step is to seal them. Here are some tips to seal air leaks in the room:
- Caulking: Use caulk to seal any leaks/seams around the window unit, including where the window frame meets the wall.
- Weather stripping: Use weatherstripping material around the window and door frames to create a tight seal.
- Spray foam insulation: Spray foam insulation can be used to fill gaps or cracks around the window unit and the wall.
These fixes are quick, easy, and affordable solutions to help minimize drafts coming from a window air conditioner. By sealing air leaks in the room, you’ll save energy and make your room more comfortable.
Use Window Air Conditioner Covers
Window air conditioners are a popular way to cool down a room during the hot summer months. However, they can also let cold air in, which can be uncomfortable and costly when it comes to your energy bill. One solution to this problem is to use window air conditioner covers.
These covers can help stop drafts and make your space more comfortable while also saving you money on utilities. In this section, we’ll explore what window air conditioner covers are, how they work, what types are available, and how to install them.
Explanation Of What Window Air Conditioner Covers Are
Window air conditioner covers are designed to fit over the exterior of your air conditioning unit and protect it from the elements. They are made of durable materials that can withstand rain, snow, and other weather conditions. They work by creating a barrier between the inside and outside of your home, preventing cold air from seeping in.
Window air conditioner covers are an effective way to keep your home warm in the winter and cool in the summer.
How They Can Help Stop Drafts
Window air conditioner covers can help stop drafts by creating a seal around the unit. This seal prevents cold air from leaking in through gaps between the unit and the window frame. By using a cover, you can reduce the amount of energy that your unit needs to use to maintain the temperature inside your home, which can save you money on your energy bill.
Additionally, the covers can keep insects, debris, and pollutants out of your home.
Types Of Covers That Can Be Used
There are several types of covers that you can use for your window air conditioner. These include:
- Fabric covers: These covers are made of heavy-duty fabric that is designed to stand up to the elements. They are easy to install and remove and can be custom-fitted to your unit.
- Vinyl covers: Vinyl covers are durable and weather-resistant, making them a great option for areas with extreme weather conditions. They come in a variety of sizes and can be easily installed over your unit.
- Insulated covers: Insulated covers can help keep your home warm during the winter months while also preventing drafts from entering your home. They are typically made of a thick layer of insulation surrounded by a durable exterior cover and can be custom-fitted to your unit.
How To Install Window Air Conditioner Covers
Installing a window air conditioner cover is a relatively simple process that you can do yourself. Here’s how:
- Measure your unit: Measure the dimensions of your unit so that you can purchase a cover that fits properly.
- Purchase a cover: Choose a cover that is the right size and material for your unit.
- Put the cover over the unit: Carefully place the cover over the unit, making sure it fits snugly against the window frame.
- Secure the cover: Some covers come with straps or elastic bands that you can use to secure it in place. If your cover doesn’t come with these, you can use clips or bungee cords to secure it.
Window air conditioner covers are a simple and effective way to stop drafts and keep your home comfortable all year round. By choosing the right cover and installing it properly, you can save money on your energy bill and enjoy a more comfortable living space.
Regular Maintenance
Explanation Of How Regular Maintenance Can Help Stop Drafts
Regular maintenance is essential for preventing drafts from a window air conditioner. Over time, dirt and debris can accumulate around the unit, causing gaps and leaks that result in unwanted drafts. Regular maintenance can help solve these issues before they occur.
By cleaning and sealing the unit, drafts can be avoided, and the air conditioner can function at optimal performance.
What Regular Maintenance Should Be Done On Your Window Air Conditioner
There are several steps one can take to maintain a window air conditioner properly. These include:
- Cleaning the air filter: The filter should be cleaned every 2-4 weeks to ensure proper airflow and prevent debris from being circulated in the room.
- Cleaning the unit’s exterior: Wipe down the outside of the air conditioner with a damp cloth to remove any dirt, dust, or grime.
- Checking the seals: Make sure that all the seals around the air conditioner are tight and secure to prevent drafts from entering the room.
- Ensuring proper drainage: Check that the condensate drain is not clogged and that it is draining water correctly.
- Checking for damage: Inspect the unit for any cracks, leaks, or damage that could cause drafts or affect its performance.
How Often Maintenance Should Be Done
It is essential to perform regular maintenance on your window air conditioner to prevent drafts. The frequency of maintenance depends on various factors, such as usage, location, and environmental factors. However, a general rule of thumb is to clean the filter every 2-4 weeks and clean the exterior and check for damage every month.
It is also recommended to have a professional inspect and perform maintenance on the unit annually to ensure it is functioning correctly. By maintaining your window air conditioner regularly, you can enjoy its cooling benefits while avoiding unwanted drafts.
Frequently Asked Questions For How To Stop The Draft From A Window Air Conditioner
How Can I Stop Drafts From A Window Air Conditioner?
You can stop drafts from a window air conditioner by sealing gaps around the air conditioner with weatherstripping, foam insulation, or caulking. You can also install side panels or insulating curtains to prevent drafts.
Can I Use A Window Air Conditioner In The Winter?
Window air conditioners are not built for use in the winter. They should be removed or covered during the colder months to prevent drafts and damage to the unit.
How Can I Tell If My Window Air Conditioner Is Causing A Draft?
You can tell if your window air conditioner is causing a draft by feeling for cooler air around the unit, noticing temperature changes in the room, or using a smoke pencil to detect air movement.
What Is The Best Way To Install A Window Air Conditioner For Draft Prevention?
The best way to install a window air conditioner for draft prevention is to use weatherstripping, foam insulation, or caulking to seal any gaps between the unit and the window frame. You can also install insulating curtains or side panels for added draft protection.
Is It Necessary To Cover A Window Air Conditioner During The Summer?
It is not necessary to cover a window air conditioner during the summer as they are designed for outdoor use. However, if you want to protect the unit from debris or harsh weather conditions, you can use a cover specifically designed for window air conditioners.
Conclusion
Overall, stopping the draft from a window air conditioner is an important task that can improve the comfort and energy efficiency of your home. By following the tips mentioned in this post, such as sealing any cracks around the unit, ensuring the unit is properly installed, and using window insulation, you can significantly reduce the amount of cold air that escapes and prevent hot air from entering your home.
Additionally, regularly cleaning and maintaining your unit can also help to improve its performance and extend its lifespan. Remember, taking the time to address any drafts from your air conditioner may require some effort, but it can pay off in the long run by reducing your energy bills and increasing your comfort level.
So, go ahead and try out these tips to achieve a draft-free and comfortable living space.