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. In many parts of the country, temperatures are rising steadily as summer approaches. Step 8: Fasten The Window AC Unit on A Sill. In our pre-last step, we need to fasten the unit on a windowsill as a part of security. Here’s a simpler, no-math way to determine which size air conditioner to buy. 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). And be sure to look for features such as digital temperature controls, variable fan speeds, and sleep settings, which also can help conserve power. Expanding curtains will help seal your room, but they’re no substitute for insulation. Adding more barriers will keep the water from coming in. Remove any molding above and below the intended opening location. Screw the vertical mounting flange of each extension to the window jambs. Slide them all the way in and then secure the adjustable panels into your window AC using provided screws. Vacuum the outside of the unit—especially the louvered vents—and then wipe it down with a damp cloth. Even small air conditioners are heavy and awkward to lift. Make sure to keep all of the hardware contained. 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. Set one bracket on the far left, top edge of the lower sash. Hot Debate: How Cool Should You Keep Your House? 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. To install a portable air conditioner, start by positioning the unit near both a window and an electrical outlet. Keep it balanced as you slide the flange on the bottom of the case against the outside edge of the windowsill. 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. Connect all the screws to avoid any gaps—which can let warm air, allergens, and pollution into your home. Air conditioners draw a fair amount of electricity, so be mindful of the circuit into which you plug the unit. Open the window to install the mounting brackets onto the windowsill. Now, pour yourself a cold glass of water while you wait for your newly air conditioned room to cool off. 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. Consider what side of the house your window faces. Insert the guide panels into the guides of the air conditioner. You’ll also want to clear the area around the window and leave yourself plenty of working space with no tripping hazards. You can also buy accordion-style insulation panels and cut them to fit the opening. After removing all the hardware, raise the lower sash and lift the air conditioner out of the window and set it onto a thick blanket spread on the floor. 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. Remove the drywall between those studs indicated from the floor to the ceiling first by scoring the … 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. Next, connect the exhaust hose to the unit and run it to the window. If you decide to remove the air conditioner, again, it’s best to have two people. 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. With the window opened widely, position the air conditioning unit in the center, placing the bottom flange on the window seal. For example, pieces of white expanded foam insulation will help keep the weather outside. Before you learn how to install a window A/C unit, you should gather some basic information. Plus, a too-big A/C unit is louder and burns more electricity than a properly sized unit. 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. When properly installed, the A/C unit will tip slightly to the outside. Be sure to have those dimensions on hand when shopping for an air conditioner to ensure it’ll fit comfortably into the window. A storm window frame or screen might interfere with the overhanging part of the A/C on the outside. Then, lower the lower sash of the window until it rests on the AC’s top flange. Install brackets and attach panels. Screw one end into the sill and adjust the center screw on the bracket so the air conditioner will be level. Gear-obsessed editors choose every product we review. Set the box in a cool, dry place for the winter. Plus, window air conditioners are easy to install. 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. 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. Bells and whistles are nice, but more so is the increased energy efficiency of these appliances. 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. 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.". 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. And then, wrap a piece of masking tape around the bit so that it limits your drilling depth to the length of the screw. Always follow the manufacturer's instructions. That space between the frame of the lower sash and the window on the upper sash needs to be filled. Choosing the Location of the Unit. The energy efficiency of a room air conditioner is designated by its EER number, which stands for Energy Efficiency Rating. This Energy Star–rated Frigidaire is one of the best-looking window-mounted air conditioners we’ve seen. Follow the manufacturer's instructions for positioning the unit to ensure that condensation will drain properly. Tip: Always refer to the manufacturer’s instructions on how … Start by reading the installation manual and familiarizing yourself with all the included hardware and fasteners. Keep downward pressure on the lower sash; it’s preventing the unit from toppling out the window. If the same circuit powers other high-energy appliances—refrigerators, dryers, ovens—consider plugging in the air conditioner elsewhere. Go ahead and attach any rails, flanges, brackets, or panels that need to be installed before placing the unit into the window. Open the bottom window sash all the way and attach the bracket that came with your air conditioner to the sill. How To Install a Window Air Conditioner Support Bracket. How To Install a Window Air Conditioner. Our local stores do not honor online pricing. Prices and availability of products and services are subject to change without notice. Close the window onto the unit. Don't leave spacers loose. The final steps will be simply securing the unit into place. Fasten the curtains to the unit with 4-type A screws on each side. Using the supplied guide paper or sleeve, trace around the outline so you can mark the opening for the air conditioner on the wall. Find the center of the window sill and mark it. We may earn commission if you buy from a link. Pick a window that’s nearest to the electrical outlet. 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. 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. Then lower the bottom window sash until it rests on the A/C and securely against the top flange. Does the wind typically whip rain against that side of the house? Ideally, a portable air conditioner should be placed near an outside window and near an electrical outlet. Keep the window air conditioner in a … (Check with the air-conditioner manufacturer for specific installation instructions.) Excessive moisture can also create a breeding ground for dust mites and mold. Window air conditioning is a good option for homeowners who do not want to invest in a central AC system. 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 manufacturer’s instructions for directions on screwing or clipping the curtains in place. Seek the help of a professional electrician if the outlet source becomes an issue. 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. Clear the area. Now that the AC unit is in the window, the hard part is over. 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. Step 3: Screw the AC Unit on the Window To uninstall your window air conditioner you will need a helping hand. Next, attach the two accordion-like extensions, one to each side of the A/C unit. 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. 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. 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. Prices, Promotions, styles, and availability may vary. Step 2: Mount The Air Conditioner On The Window. Rest the unit on the bottom of the window frame and mounting support bracket. Also measure the width and the height of the window opening to confirm whether an A/C will fit. Raise the window’s lower sash and set the A/C unit centered on the windowsill. 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. Installing a window air-conditioner is best done with two people. Use a bit that’s slightly smaller than the core of the screw. 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. ft. x 20 = 3,840 BTU). Prepare the unit for mounting before installation. Open it wide enough to accommodate the height of the air conditioner. Save the air conditioner’s original box and packing materials; you can use it later for storing the unit. 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. Start by raising the lower sash, and then measure the height and width of the opening. Removing a window air-conditioner unit can be difficult, so unless you really need access to the window or want to create a better seal for winter, it's best to leave it in place and protect it with a slip-on cover. 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. Open the window! For example, a 12,000 BTU air conditioner that uses 1,200 watts of electricity has an EER of 10. 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. And, should something go wrong with your window A/C unit, our Lowe’s protection plan has you covered. Place the air conditioner back into its original box, using the dense-foam packing material to protect it from damage. Here's how to choose and install a window AC unit like a pro. Make sure that your outline is level by using your level tool during the marking process. Install the Air Conditioner in the Sliding Window After building the frame accordingly, it’s now time to install it into the window frame. This is important to allow condensation to drip outside, not into the room. 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 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. Although the steps for securing the air conditioner in place will vary between manufacturers, most AC units will include at least one L bracket. Then, make another outline that’s 2 ½ inches larger than the existing outline. This compact model from Haier is one of the quietest and most energy-efficient window air conditioners on the market. 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. 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. Fasten spacers in place to keep the unit from tilting or even falling. Let your helper hold it for subsequent steps. Not all windows allow you to use L-shaped clips to hold the bottom sash in place. Center the air conditioner in the window opening. Pull the side curtains out to the edges of the window frame to keep bugs, moisture and hot air from entering the room. Position the A/C Unit in the Window Go back into the house. And choosing a unit that’s too big—a common mistake—is just as problematic. Here are some examples. Most the weight will be hanging out the window, so be sure to keep a firm grip on the unit. If your window receives lots of sun, consider cutting white foam insulation board to fit snugly around the outside opening. As a general rule, you need about 20 BTU of cooling for every square foot of living space. This will help you avoid a tripped breaker or blown fuse. 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. These parts will ensure a secure and airtight fit in the window opening. The EER is calculated by dividing the unit’s BTU rating by the wattage of the unit. Center the AC on the windowsill. In apartments without central air, the race toward summer means that it’s time to install a window air conditioning 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 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.. A rating of 10 or higher is considered ideal for saving electricity and lowering your utility bills. Plug the unit in, using an A/C extension cord if needed. Put all the screws, brackets and other installation hardware items in a re-sealable plastic bag, and put the bag in the box. 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. 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