Screw the vertical mounting flange of each extension to the window jambs. Find the center of the window sill and mark it. Link to Lowe's Home Improvement Home Page, How to Choose the Best Window Air Conditioner for You, Determine the window where you’ll install your A/C. Next, pick up the unit and rest it on the bottom of the window frame. Then, make another outline that’s 2 ½ inches larger than the existing outline. Also measure the width and the height of the window opening to confirm whether an A/C will fit. 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. 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. 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. 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. 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. Choosing the Location of the Unit. For example, pieces of white expanded foam insulation will help keep the weather outside. 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. Not every A/C fits every type of window. The EER is calculated by dividing the unit’s BTU rating by the wattage of the unit. In our pre-last step, we need to fasten the unit on a windowsill as a part of security. Slide the panels into the appropriate place on your unit. Next, connect the exhaust hose to the unit and run it to the window. 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. Let your helper hold it for subsequent steps. Here are some examples. Use a bit that’s slightly smaller than the core of the screw. Keep it balanced as you slide the flange on the bottom of the case against the outside edge of the windowsill. Place the air conditioner back into its original box, using the dense-foam packing material to protect it from damage. Open it wide enough to accommodate the height of the air conditioner. Even small air conditioners are heavy and awkward to lift. 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 choosing a unit that’s too big—a common mistake—is just as problematic. 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. Popular Mechanics participates in various affiliate marketing programs, which means we may get paid commissions on editorially chosen products purchased through our links to retailer sites. Open up the window to the width of the A/C, plus another 4 or 5 inches. Excessive moisture can also create a breeding ground for dust mites and mold. This compact model from Haier is one of the quietest and most energy-efficient window air conditioners on the market. 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. Plus, window air conditioners are easy to install. Start of by removing the window air conditioner from the support and take it off from the window space. You’ll also want to clear the area around the window and leave yourself plenty of working space with no tripping hazards. Drill pilot holes to keep the screws from splitting the wood. We may earn commission if you buy from a link. With a partner, lift the A/C and slowly push it through the window opening and onto the platform assembly. Prices, Promotions, styles, and availability may vary. 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. 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. Most units come with a kit that includes adjustable window extensions and metal mounting brackets. Our local stores do not honor online pricing. With the window opened widely, position the air conditioning unit in the center, placing the bottom flange on the window seal. Check for obstructions in the window opening. Expanding curtains will help seal your room, but they’re no substitute for insulation. This often involves attaching brackets and the accordion-style side curtains. Keep the window air conditioner in a … Don't leave spacers loose. With the bottom window sash up as far as it'll go, center and insert the A/C in the window. Keep downward pressure on the lower sash; it’s preventing the unit from toppling out the window. Pick a window that’s nearest to the electrical outlet. Slide the window against the window framing to make available the space you chose for the air conditioner. Check the manufacturer’s instructions for directions on screwing or clipping the curtains in place. 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. 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. Hot Debate: How Cool Should You Keep Your House? Close the window onto the unit. Determine whether your window is sliding, a double-hung or casement style. Clear the area. In apartments without central air, the race toward summer means that it’s time to install a window air conditioning unit. If your window is a vinyl window, you can replace the clips by cutting strips of wood (paint stirring sticks are ideal) just long enough to wedge snugly between the sash and the top of the window frame. There are several essential factors to consider when deciding where to install your window type air conditioner. Make sure that your outline is level by using your level tool during the marking process. Then, lower the lower sash of the window until it rests on the AC’s top flange. These compact units are reliable, durable, able to cool virtually any size room, and today’s models are exponentially more energy efficient than units built just 10 years ago. Raise the window’s lower sash and set the A/C unit centered on the windowsill. If the circuit is also powering other devices, even simple ones such as a hair dryer, you should consider adding a dedicated circuit, choosing another window near a different circuit or moving other appliances elsewhere. Here’s a simpler, no-math way to determine which size air conditioner to buy. Start by reading the installation manual and familiarizing yourself with all the included hardware and fasteners. A storm window frame or screen might interfere with the overhanging part of the A/C on the outside. Before you learn how to install a window A/C unit, you should gather some basic information. 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. Open the window! Weather, vibration and the challenge of lifting a heavy A/C unit onto a windowsill can knock an unsecured spacer out of position. 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. Double-check the unit’s measurements and compare them to the window opening. The energy efficiency of a room air conditioner is designated by its EER number, which stands for Energy Efficiency Rating. Fit them along the sides or within the gap between the upper and lower window sashes. As a general rule, you need about 20 BTU of cooling for every square foot of living space. Most manufacturers advise that you keep the hose as short and straight as possible. Window A/C units typically have ratings between about eight and 12. Not all windows allow you to use L-shaped clips to hold the bottom sash in place. If you're looking for a new window A/C, well, you're in luck. After balancing your A/C on the windowsill, it’ll be easy to see why you need the top sash to stay put and hold the unit in place. Using the supplied guide paper or sleeve, trace around the outline so you can mark the opening for the air conditioner on the wall. Fasten the curtains to the unit with 4-type A screws on each side. ⚠️Don’t confuse EER with SEER—Seasonal Energy Efficiency Ratio—which is used to calculate the energy efficiency of central air-conditioning systems. These parts will ensure a secure and airtight fit in the window opening. Consider what side of the house your window faces. How we test gear. Some producers provide the brackets and screws for this reason. Here's how to choose and install a window AC unit like a pro. Place the air conditioner back into its original box, using the dense-foam packing material to protect it from damage. That space between the frame of the lower sash and the window on the upper sash needs to be filled. Also, check that the vent hose can reach the window without over stretching it. Prepare the unit for mounting before installation. Then lower the bottom window sash until it rests on the A/C and securely against the top flange. Now that the AC unit is in the window, the hard part is over. 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. Step 8: Fasten The Window AC Unit on A Sill. The installation kit typically includes two small L-shaped metal brackets, which are used to prevent the lower sash from being raised. ft. x 20 = 3,840 BTU). It’s a simple method, and in most cases it works reasonably well. And the last thing you want is for your A/C unit to fall out window or onto the floor. No, There Isn't a '5G Chip' in the COVID Vaccine, Gear of the Year: The Best Products We Tested, Tiny Nuclear Reactors Can Save American Energy, The Best Smart TVs for Picture-Perfect Clarity, Serenity Series Quiet Window Air Conditioner (6,000 BTU). Once the window kit is in place the final steps to install a portable a/c are nothing more than applying a security bracket to the window so it can't be opened from the outside, hooking up a vent from the air conditioner to the window panel, and plugging the system in a grounded outlet. Repeat to install the remaining bracket to the far right side of the lower sash. Follow the manufacturer's instructions for positioning the unit to ensure that condensation will drain properly. If you need new foam fillers, you can buy them separately. A/C Safe AC-160 Universal Heavy Duty Window Air Conditioner Support Installing a window A/C bracket fall in the DIY category but as always call a professional if in doubt. If your window receives lots of sun, consider cutting white foam insulation board to fit snugly around the outside opening. Next, attach the two accordion-like extensions, one to each side of the A/C unit. If there’s no three-prong outlet nearby, you’ll need an. Choose from well-known window air conditioner brands like LG window air conditioners and Frigidaire window air conditioners, then let us handle the rest. To uninstall your window air conditioner you will need a helping hand. If you choose a unit that’s too small, it’ll struggle to keep the room cool on the hottest days. Now pull down the lower sash until it contacts the top of the A/C unit directly behind the metal flange running across the top of the unit. Air conditioners draw a fair amount of electricity, so be mindful of the circuit into which you plug the unit. And if the storage room has a concrete floor, place two 2x4s beneath the box to raise it up and protect it from moisture. Start by raising the lower sash, and then measure the height and width of the opening. This will help you avoid a tripped breaker or blown fuse. Adding more barriers will keep the water from coming in. Installing a unit through a wall also allows the owner to put it in almost any place.. A hole will have to be cut into the wall and a sleeve put into it to hold the HVAC unit. Set the box in a cool, dry place for the winter. How To Install a Window Air Conditioner Support Bracket. Ideally, a portable air conditioner should be placed near an outside window and near an electrical outlet. 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). With the brackets screwed in place and the lower sash locked in positioned, and the A/C unit is secured. Check that the power cable can reach the outlet without stretching it too far. Screw one end into the sill and adjust the center screw on the bracket so the air conditioner will be level. Want to beat the heat in your home? 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. Ford Offers to License Its Police “Surveillance Mode” Camera Tech to Other Cop-Car Makers, 9 Ways to Celebrate Star Wars Day (Other Than Watching Star Wars), Staying Cool: How to Replace Your Old Central Air Conditioner, 7 Window -Mounted Air Conditioners in a Cool-Down Competition. Step 2: Mount The Air Conditioner On The Window. West-facing windows may catch more sun and force the A/C to work harder. Step 3: Screw the AC Unit on the Window 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. If you decide to remove the air conditioner, again, it’s best to have two people. Cut the seal strip to the window width, removing the backing and attach the seal strip to the underside of the window. Always follow the manufacturer's instructions. 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, should something go wrong with your window A/C unit, our Lowe’s protection plan has you covered. Vertical aircon window units are generally known as slider air conditioners or slider casement AC. Position the unit’s bottom guide, or flange, flush against the window stool. Connect all the screws to avoid any gaps—which can let warm air, allergens, and pollution into your home. You can also buy accordion-style insulation panels and cut them to fit the opening. 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. Set one bracket on the far left, top edge of the lower sash. The first step was to basically create and install a "frame" that the air conditioner would fit into. The final steps will be simply securing the unit into place. 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). Pull the side curtains out to the edges of the window frame to keep bugs, moisture and hot air from entering the room. Also, keep fire safety in mind when deciding where to install the air conditioner: Don’t place it in an egress window that serves as the only means of escape should a fire erupt. 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. The perfect location for a window air conditioner is closest to the center of the room and on the shady side of 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). Does the wind typically whip rain against that side of the house? Installing a window air-conditioner is best done with two people. Center the AC on the windowsill. If your A/C comes with a foam seal, cut it to size and slip it in place. Prices and availability of products and services are subject to change without notice. Then, use a cordless drill to screw the bracket to the upper sash. Vacuum the outside of the unit—especially the louvered vents—and then wipe it down with a damp cloth. While keeping the window AC unit balanced, slide the flange at the bottom of the air conditioner until it leans on the windowsill. Position the A/C Unit in the Window Go back into the house. 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. For example, a 12,000 BTU air conditioner that uses 1,200 watts of electricity has an EER of 10. Put all the screws, brackets and other installation hardware items in a re-sealable plastic bag, and put the bag in the box. Insert the guide panels into the guides of the air conditioner. 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.. Remove the drywall between those studs indicated from the floor to the ceiling first by scoring the … This is important to allow condensation to drip outside, not into the room. Tip: Always refer to the manufacturer’s instructions on how … 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. (Check with the air-conditioner manufacturer for specific installation instructions.) How To Install a Window Air Conditioner. If the same circuit powers other high-energy appliances—refrigerators, dryers, ovens—consider plugging in the air conditioner elsewhere. 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. Pull out each extension to close off the space to the left and right of the air conditioner. 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.". Enlist a helper to set the A/C in position. Install brackets and attach panels. Each installation is unique and will have to be thought-out. 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. Save the air conditioner’s original box and packing materials; you can use it later for storing the unit. For example, pieces of white expanded. 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. 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. And then, wrap a piece of masking tape around the bit so that it limits your drilling depth to the length of the screw. (Note that in some cases you must install the extensions prior to setting the unit in the window; check the installation manual for specific details.) This Energy Star–rated Frigidaire is one of the best-looking window-mounted air conditioners we’ve seen. Although the steps for securing the air conditioner in place will vary between manufacturers, most AC units will include at least one L bracket. Here, I’ll discuss installation for double-hung windows, which are by far the most popular style of window. 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. Be sure to have those dimensions on hand when shopping for an air conditioner to ensure it’ll fit comfortably into the window. Products, costs, availability and item numbers may vary online or by market. 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