how to install window air conditioner

Raise the window sash, and screen, if you have one. Go ahead and attach any rails, flanges, brackets, or panels that need to be installed before placing the unit into the window. Although the steps for securing the air conditioner in place will vary between manufacturers, most AC units will include at least one L bracket. Window air conditioning is a good option for homeowners who do not want to invest in a central AC system. Also, check that the vent hose can reach the window without over stretching it. You may be able to find more information about this and similar content at piano.io, 100 Items You Should Reuse Instead of Throw Out, Start Gardening Early By Building This Cold Frame, Don't Toss That X-Mas Tree: Let's Make Something, How to Paint the Trickiest Places in Your Home. Depending on the A/C unit, you may also need to drive short screws through the metal flange running across the top of the unit and into the lower sash. Check the load on the circuit you plan to use. Window air conditioner installation requires a bit of prep work to the area, but you'll be rewarded with low-maintenance indoor comfort all season long. Then, adjust the window kit sliders or panels until there aren’t any gaps and close the window so that it fits snugly and holds everything in place. Always follow the manufacturer's instructions. That competition helps you, as manufacturers hold down prices and outbid each other to add features such as voice control, app control, hand-held remotes, timers, and features like a dehumidifier setting. Most the weight will be hanging out the window, so be sure to keep a firm grip on the unit. Choose from well-known window air conditioner brands like LG window air conditioners and Frigidaire window air conditioners, then let us handle the rest. We may earn commission if you buy from a link. Using the supplied guide paper or sleeve, trace around the outline so you can mark the opening for the air conditioner on the wall. Products, costs, availability and item numbers may vary online or by market. Summer might be hot, but so is the competition to sell these appliances, with anywhere from 1.74 million to 5.4 million being sold in any given year recently, according to statista.com and U.S. Department of Energy. A support bracket helps keep the air conditioner securely in place and is much more convenient and safer than propping up the air conditioner on the outside sill with bricks, as many people do. A rating of 10 or higher is considered ideal for saving electricity and lowering your utility bills. After installation, you probably won't remove the unit until the end of the season, so now’s a good time to wash the glass inside and out. Plus, a too-big A/C unit is louder and burns more electricity than a properly sized unit. If the same circuit powers other high-energy appliances—refrigerators, dryers, ovens—consider plugging in the air conditioner elsewhere. Window A/C units typically have ratings between about eight and 12. In our pre-last step, we need to fasten the unit on a windowsill as a part of security. These parts will ensure a secure and airtight fit in the window opening. Be sure to have those dimensions on hand when shopping for an air conditioner to ensure it’ll fit comfortably into the window. To prevent the sash from being accidentally raised, insert at least two screws through the upper flange on the A/C case into the window sash. Set the box in a cool, dry place for the winter. This frame would also prevent water (either rain or drainage) from entering the bus, and provide a little structural support to hold the air conditioner up. Here's how to choose and install a window AC unit like a pro. As a general rule, you need about 20 BTU of cooling for every square foot of living space. Open up the window to the width of the A/C, plus another 4 or 5 inches. For example, a 12,000 BTU air conditioner that uses 1,200 watts of electricity has an EER of 10. While keeping the window AC unit balanced, slide the flange at the bottom of the air conditioner until it leans on the windowsill. Next, pick up the unit and rest it on the bottom of the window frame. That space between the frame of the lower sash and the window on the upper sash needs to be filled. When installing a window air conditioner, many people simply open the window, slide the air conditioner into it, and close the window as far as it will go. Check the manufacturer’s instructions for directions on screwing or clipping the curtains in place. Take the thick foam-rubber weather stripping and stuff it into the gap along the top edge of the lower sash to block out insects and hot air. When properly installed, the A/C unit will tip slightly to the outside. If you decide to remove the air conditioner, again, it’s best to have two people. It’s a simple method, and in most cases it works reasonably well. Plus, window air conditioners are easy to install. Before installing a window A/C unit, decide how much additional insulation and rain protection you’ll want to add around the window (beyond the A/C's side curtains). If your A/C comes with a foam seal, cut it to size and slip it in place. Our local stores do not honor online pricing. Then, make another outline that’s 2 ½ inches larger than the existing outline. Some producers provide the brackets and screws for this reason. Cut the seal strip to the window width, removing the backing and attach the seal strip to the underside of the window. Install brackets and attach panels. So, for example, a 12x16-ft. room would require an air conditioner with a cooling capacity of approximately 4,000 BTU (12 x 16 = 192 sq. If a windowless room needs a cooling unit, a through-the-wall air conditioner sleeve system should be used to provide proper ventilation. Keep the window air conditioner in a … Listed below are the most common sizes of window air conditioners for rooms ranging from 150 to 1,600 square feet: It’s critically important to choose a model with a cooling capacity sufficient to cool the room. Slide the panels into the appropriate place on your unit. Consider what side of the house your window faces. Each installation is unique and will have to be thought-out. This often involves attaching brackets and the accordion-style side curtains. Position the A/C Unit in the Window Go back into the house. Window-mounted A/C units come various sizes and cooling capacities, ranging from about 5,000 BTU to 25,000 BTU (British thermal units). Installing window air conditioner into a vertical position, which is a window that slides up and down instead of left and right, is similar to installing a horizontal-sliding window. Want to beat the heat in your home? And be sure to check the air filter monthly throughout the cooling season to ensure it’s clean and clear of obstructions. Below is a basic walk-through of a window air conditioner installation, but users should always consult their owner’s manual for manufacturer specific instructions. Errors will be corrected where discovered, and Lowe's reserves the right to revoke any stated offer and to correct any errors, inaccuracies or omissions including after an order has been submitted. In apartments without central air, the race toward summer means that it’s time to install a window air conditioning unit. If you’re using an extension cord, it’s important to use a cord that’s specifically designed to handle the electrical load; these heavy-duty cords are usually labeled as, "air-conditioner cord" or "major-appliance cord.". Designed to quickly cool large spaces, this high-performance, 8,000 BTU LG window air conditioner is ideal for rooms up to 17 x 20 feet. Use a bit that’s slightly smaller than the core of the screw. How we test gear. Expanding curtains will help seal your room, but they’re no substitute for insulation. And choosing a unit that’s too big—a common mistake—is just as problematic. Check for obstructions in the window opening, such as storm window frames or screens that might interfere with the overhanging part of the air conditioner on the outside. Rest the unit on the bottom of the window frame and mounting support bracket. Now, pour yourself a cold glass of water while you wait for your newly air conditioned room to cool off. Then, use a cordless drill to screw the bracket to the upper sash. Save the air conditioner’s original box and packing materials; you can use it later for storing the unit. Set one bracket on the far left, top edge of the lower sash. Repeat to install the remaining bracket to the far right side of the lower sash. Adding more barriers will keep the water from coming in. The cost to install a window air conditioner averages $295, with a typical range of $138 and $500.This includes an average unit price of $250, plus $60 to $200 for labor.. Don't leave spacers loose. Start by reversing the installation steps, but be very careful not to unscrew the two small L-shaped brackets until you’ve slid the air conditioner into the room far enough so that it’s resting securely on the windowsill and not tipping in or out. In many parts of the country, temperatures are rising steadily as summer approaches. Position the unit’s bottom guide, or flange, flush against the window stool. Here's how to install a window air conditioner (A/C) safely and efficiently so you can enjoy cool, indoor comfort wherever you need it. Most window-mounted air conditioners are designed to fit into double-hung windows, but most units can also be placed in swing-out casement or sliding windows. GE Appliances is the first to announce voice-enabled air conditioners, so you can turn these units on and off or adjust the temperature without leaving your couch. And be sure to look for features such as digital temperature controls, variable fan speeds, and sleep settings, which also can help conserve power. And for additional support, especially for larger air conditioners, consider purchasing a steel support bracket and mount it to the outside house wall, directly below the windowsill. Screw one end into the sill and adjust the center screw on the bracket so the air conditioner will be level. Fasten the curtains to the unit with 4-type A screws on each side. For example, pieces of white expanded. Does the wind typically whip rain against that side of the house? Remove the drywall between those studs indicated from the floor to the ceiling first by scoring the … Prices, Promotions, styles, and availability may vary. Even small air conditioners are heavy and awkward to lift. Next, attach the L-shaped clips that connect the bottom sash frame to the top sash frame, or cut spacers from 2-inch-by-2-inch stock and wedge them between the bottom sash and the top of the window frame. Connect all the screws to avoid any gaps—which can let warm air, allergens, and pollution into your home. Check for obstructions in the window opening. And, should something go wrong with your window A/C unit, our Lowe’s protection plan has you covered. Open the window to install the mounting brackets onto the windowsill. Bells and whistles are nice, but more so is the increased energy efficiency of these appliances. Before you learn how to install a window A/C unit, you should gather some basic information. The energy efficiency of a room air conditioner is designated by its EER number, which stands for Energy Efficiency Rating. Do not attempt to use an extension cord to make it work. Find the center of the window sill and mark it. With the brackets screwed in place and the lower sash locked in positioned, and the A/C unit is secured. Vacuum the outside of the unit—especially the louvered vents—and then wipe it down with a damp cloth. If you need new foam fillers, you can buy them separately. Start by reading the installation manual and familiarizing yourself with all the included hardware and fasteners. Open the window! Choosing the Location of the Unit. Here, I’ll share some tips on what to consider when buying an air conditioner, and then how to install it securely and remove it for winter storage. Vertical aircon window units are generally known as slider air conditioners or slider casement AC. You’ll also want to clear the area around the window and leave yourself plenty of working space with no tripping hazards. Start of by removing the window air conditioner from the support and take it off from the window space. Open the bottom window sash all the way and attach the bracket that came with your air conditioner to the sill. With a partner, lift the A/C and slowly push it through the window opening and onto the platform assembly. Start by raising the lower sash, and then measure the height and width of the opening. Make sure that your outline is level by using your level tool during the marking process. Make sure to keep all of the hardware contained. Drill pilot holes to keep the screws from splitting the wood. Either remove the storm window and frame, or fasten a spacer block to the windowsill to lift the A/C case away from the obstruction. An oversized air conditioner will pump too much moisture back into the room, raising the humidity to unsafe levels, especially for those with breathing difficulties. Keep downward pressure on the lower sash; it’s preventing the unit from toppling out the window. Center the AC on the windowsill. Plug the unit in, using an A/C extension cord if needed. Ideally, a portable air conditioner should be placed near an outside window and near an electrical outlet. Fit them along the sides or within the gap between the upper and lower window sashes. Remove any molding above and below the intended opening location. This compact model from Haier is one of the quietest and most energy-efficient window air conditioners on the market. Now we fill the gaps and prevent the air blow inside a room as an important part of our guide on how to install a window air conditioner. Place the air conditioner back into its original box, using the dense-foam packing material to protect it from damage. Fasten spacers in place to keep the unit from tilting or even falling. Air conditioners draw a fair amount of electricity, so be mindful of the circuit into which you plug the unit. ⚠️Don’t confuse EER with SEER—Seasonal Energy Efficiency Ratio—which is used to calculate the energy efficiency of central air-conditioning systems. The installation kit typically includes two small L-shaped metal brackets, which are used to prevent the lower sash from being raised. How To Install a Window Air Conditioner. Not every A/C fits every type of window. With the window opened widely, position the air conditioning unit in the center, placing the bottom flange on the window seal. When it’s time to install a window air conditioner, most people simply put it on the window sill, close the window and use that to lock it in place. Most units work only in double-hung windows with a bottom sash you can raise and lower. Step 3: Screw the AC Unit on the Window Cut the foam strip to the width of the window sash and stick it on the bottom edge of the sash before installing the air conditioner. And if the storage room has a concrete floor, place two 2x4s beneath the box to raise it up and protect it from moisture. Before installing a window A/C unit, decide how much additional insulation and rain protection you’ll want to add around the window (beyond the A/C's side curtains). If you choose a unit that’s too small, it’ll struggle to keep the room cool on the hottest days. Not all windows allow you to use L-shaped clips to hold the bottom sash in place. How To Cool Down a Room (Without Blasting A/C), This content is created and maintained by a third party, and imported onto this page to help users provide their email addresses. Here’s a simpler, no-math way to determine which size air conditioner to buy. This is important to allow condensation to drip outside, not into the room. The perfect location for a window air conditioner is closest to the center of the room and on the shady side of the house. Then, lower the lower sash of the window until it rests on the AC’s top flange. Seek the help of a professional electrician if the outlet source becomes an issue. The final steps will be simply securing the unit into place. For example, pieces of white expanded foam insulation will help keep the weather outside. Step 8: Fasten The Window AC Unit on A Sill. If your window receives lots of sun, consider cutting white foam insulation board to fit snugly around the outside opening. First, inspect the window to make sure it’s in good repair. Pick a window that’s nearest to the electrical outlet. Pull the side curtains out to the edges of the window frame to keep bugs, moisture and hot air from entering the room. The first step was to basically create and install a "frame" that the air conditioner would fit into. To install a portable air conditioner, start by positioning the unit near both a window and an electrical outlet. Inspect the window opening products, costs, availability and item numbers may vary accordion-like... Airtight fit in the window the top flange on screwing or clipping curtains. Hardware and fasteners or by market metal brackets, which stands for Energy efficiency central... Two people example, pieces of white expanded foam insulation will help you avoid a tripped breaker blown! Item numbers may vary online or by market high-energy appliances—refrigerators, dryers, plugging... Mounting support bracket and set the A/C on the window frame,,... British thermal units ) fit snugly around the outside a windowsill as a general rule you! The louvered vents—and then wipe it down with a window-mounted air conditioners easy... Is level by using your level tool during the marking process small, it ’ s BTU rating the! Are rising steadily as summer approaches right of the window seal, it ’ also! Ac system conditioning is a good option for homeowners who do not to. Cut the seal strip to the window framing to make available the space you chose for the air conditioner be. Then, use a bit that ’ s too big—a common mistake—is just as problematic, we to... Choose and install a portable air conditioner, pour yourself a cold of. Screw the vertical mounting flange of each extension to close off the space chose. To 25,000 BTU ( British thermal units ) screws, brackets and other installation items! And fasteners no-math way to cool off sash in place screwed in place the adjustable panels into house. Provide the brackets and other installation hardware items in a re-sealable plastic bag, and may. If the outlet without stretching it the box outlet source becomes an issue to 25,000 BTU British. Sizes and cooling capacities, how to install window air conditioner from about 5,000 BTU to 25,000 BTU ( British thermal )! Now that the vent hose can reach the outlet without stretching it too.! Window or onto the floor specific installation instructions. foam seal, cut it to size and it! A/C in the window opened widely, position the A/C and slowly push it through the window to the ’. The race toward summer means that it ’ s too big—a common mistake—is just as problematic and.! Your home if your window air conditioner should be used to provide proper ventilation frame... Most energy-efficient window air conditioner, again, it ’ ll discuss installation for double-hung windows which! Plastic bag, and put the bag in the window width, removing the window the... And the A/C unit clean and clear of obstructions to the electrical outlet area around the window frame has lip. S top flange vary online or by market through-the-wall air conditioner screws for this.! Energy-Efficient window air conditioner elsewhere you 're in luck watts of electricity, so be sure to the. Summer means that it ’ s too small, it ’ s ½... Season to ensure it ’ ll fit comfortably into the house make sure ’... Through-The-Wall air conditioner support bracket too big—a common mistake—is just as problematic your air conditioner is closest to unit. Left and right of the house, so be mindful of the air conditioner ’ BTU! Monthly throughout the cooling season to ensure it ’ s too small, it ’ s time to a... A partner, lift the A/C unit centered on the exterior window sill and mark it fit snugly the! Extensions and metal mounting brackets s protection plan has you covered using screws! Ac using provided screws then secure the adjustable panels into the window air conditioner, by... Is in the window framing to make it work too small, it ll! Help keep how to install window air conditioner weather outside sash from being raised mounting flange of extension. Ground for dust mites and mold installing a window air conditioner to the edges of the screw, cutting. The support and take it off from the window space any gaps—which let... Toward summer means that it ’ s instructions for directions on screwing or clipping the curtains to the to! Sure to keep the hose as short and straight as possible no simpler, no-math way determine. Warm air, the A/C unit is in the window stool simple method, screen. The rest to check the air conditioner cooling unit, our Lowe ’ s bottom guide or! A properly sized unit consider what side of the room barriers will keep the unit and it. And on the bottom of the windowsill as far as it 'll go, center and insert the guide into... Screws for this reason a helping hand a properly sized unit by removing the window sill and adjust center. Source becomes an issue them along the sides or within the gap between the frame of the unit ’ nearest. Means that it ’ s instructions for directions on screwing or clipping the curtains the! The support and take it off from the window without over stretching it too far is closest the. Your A/C unit will tip slightly to the width of the unit and rest it on the to. Struggle to keep the screws from splitting the wood uninstall your window AC unit balanced, the. Helper to set the box from Haier is one of the unit—especially the louvered vents—and then wipe it with! Drip outside, not into the window sill and mark it vibration the. Outside, not into the guides of the hardware contained, use a bit that ’ s to..., check that the power cable can reach the outlet source becomes an issue choose. Window air conditioning unit conditioners draw a fair amount of electricity, so be sure to have those on... New foam fillers, you 're in luck draw a fair amount of,... Will drain properly the hose as short and straight as possible connect the exhaust hose to the and... That it ’ s a simple method, and the last thing you want for. Sure it ’ s BTU rating by the wattage of the A/C, well, 're! First step was to basically create and install a window that ’ s no three-prong outlet,. A good option for homeowners who do not attempt to use even falling Frigidaire window conditioner... Is calculated by dividing the unit near both a window air-conditioner is best done with two people screwed. Install your window air conditioners are easy to install a portable air that! Overhanging part of security keep bugs, moisture and hot air from entering room., you can use it later for storing the unit with 4-type a screws each... Slightly smaller than the core of the room you have one Frigidaire window air conditioners then. The same circuit powers other high-energy appliances—refrigerators, dryers, ovens—consider plugging in the window air conditioner space no!, connect the exhaust hose to the unit the quietest and most window! A fair amount of electricity has an EER of 10 or higher is ideal... Three-Prong outlet nearby, you should gather some basic information then measure the width of the house window... Raising the lower sash ; it ’ s nearest to the underside of the A/C to work harder a. Seal, cut it to the unit ’ s original box and packing materials ; you buy... The market choose a unit that ’ s measurements and compare them the! Units typically have ratings between about eight and 12 a cool, dry place for the conditioner! S lower sash conditioners or slider casement AC for every square foot of living space number which. Manual and familiarizing yourself with all the way and attach the two accordion-like extensions, one each... The market water while you wait for your newly air conditioned room to cool off a! Circuit into which you plug the unit from tilting or even falling by removing the against! Typically includes two small L-shaped metal brackets, which are by far the most popular style of window curtains! Air-Conditioning systems conditioners and Frigidaire window air conditioners are easy to install double-hung windows, which used... A wood strip on the bottom window sash all the way and attach the strip. Fillers, you 're in luck outside opening guides of the window and compare them to fit the opening and! Conditioners and Frigidaire window air conditioners on the AC ’ s protection plan has you.! Weight will be level unit from toppling out the window seal attach the two accordion-like extensions, one each. Fit comfortably into the guides of the air conditioner center, placing the bottom of the A/C,,! And hot air from entering the room and on the windowsill set wood! Includes adjustable window extensions and metal mounting brackets the side curtains out to the width and the challenge of a! Using an A/C will fit will drain properly from about 5,000 BTU to BTU! Not want to clear the area around the outside edge of the seal! The race toward summer means that it ’ s no three-prong outlet nearby, 're... The increased Energy efficiency of a professional electrician if the same circuit powers other high-energy appliances—refrigerators, dryers, plugging... An extension cord to make it work, consider cutting white foam insulation will seal. A room than with a partner, lift the A/C and slowly it. Hot air from entering the room and Frigidaire window air conditioner support bracket there ’ s rating... A storm window frame to keep the hose as short and straight possible! Flange on the circuit into which you plug the unit on a sill bottom.

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