Learn how to safely install a window air conditioning unit to ensure your space stays cool all summer long with our expert installation guide.

Whether your home has a room that’s a notorious hotspot or you simply don’t have the luxury of central HVAC, there’s a good chance you’ve considered installing a window air conditioning unit. These compact air conditioners are relatively easy to install, but it’s worth familiarizing yourself with the process before you get started. This way, you can rest assured that the installation will be quick and easy—and you’ll also be safeguarding the safety and effectiveness of the unit. Follow the steps below to make sure your sweltering space has a properly installed window air conditioner keeping it cool for the summer.

Choosing Your Window Air Conditioner

Window air conditioners come in a variety of sizes and with a wide range of features. While many features—such as fan speeds, filter alerts, and sleep mode—will depend on your cooling preferences and needs, there are a few key things to pay close attention to when purchasing you unit to make sure it’s right for your space. To get started, measure your window and shop for units that fit within its dimensions.

The most important spec to note when shopping for window air conditioners is the square footage rating. If your space is 600 square feet and you settle for a unit that’s only rated for 350 square feet, you’ll likely be disappointed in its inability to thoroughly cool your space. The unit’s cooling power is rated in BTU (British Thermal Unit) and, as this number increases, so will the square footage rating.

While purchasing a properly sized air conditioning unit is a must, some features are worth splurging on. Here are some top features:

Programmable Units: A programmable unit will allow you to program when you want the air conditioner to run and turn itself off. This will save you energy and money, allowing you to sit back and enjoy the cool air without constantly turning the machine on and off.

Smart Units: Smart units can be controlled by your smartphone or tablet, making operation a breeze. If you don’t opt for a smart unit, you should at least get a unit with a remote control, particularly if the air conditioner is in a distant or hard-to-get-to corner or you have mobility issues.

Air Ionizers: Units with air ionizing built-in purify the air as they cool your house, making these air conditioners two appliances in one.

Determining Whether You Need a Support Base

As you shop for window units, you’ll likely come across support bases. If your window is in good condition and the window air conditioning unit you’re installing doesn’t specify the need for a support base, you likely do not need to install one. However, many cities mandate the use of support bases for safety reasons. Look into your local laws and building codes to determine whether you need a support base.

How to Install a Window Air Conditioning Unit

Any basic DIYer can install a window air conditioning unit. However, these units can be a little heavy, so if you’re unable to safely place the unit in the window by yourself, we recommend getting a helping hand. Ready to get started? Grab the tools and supplies below and follow our step-by-step installation guide.

What You’ll Need

  • Drill
  • Drill bits
  • Screwdriver
  • Sliding window security lock
  • Air conditioner weather stripping (optional)
  • Window A/C unit support base (optional)

Step 2: Open Window and Clean Sill

Open your window by sliding the bottom sash all the way upward. Remove the screen if in place. Inspect the sill at the bottom that the window slides into when closed and remove any dirt or debris. This is where the base of the air conditioning unit will sit once installed, so it’s important that this slot is clear of anything that could prevent the unit from being securely seated.

Step 3: Install Weather Stripping (Optional)

If you plan to install weather stripping to keep the cold air in and the hot air out, do so now. Follow the manufacturer’s instructions on your weather stripping and apply to the bottom sill as well as the bottom of the window.

Step 4: Stage the Area

Placing the unit in the window will require you to seat the heavy unit in the bottom sill and slide the window into place, aligned with the rail on the top of the unit, while supporting the weight of the unit with one arm. Before placing the unit, familiarize yourself with the process and ensure your window will easily slide into place as you support the unit. Call in a helper at this point if needed.

Step 5: Install the Unit

Lift the unit and carefully place it in the window, guiding the bottom rail into the slot on the bottom sill. To hold the unit in place, slide the window behind the top rail. If properly secured, the weight of the unit will hold it in place.

Step 6: Install Window Locks

Above the top of the window panel, install sliding window security locks. This will ensure the window can’t be bumped out of position, causing the unit to fall. Additionally, this will prevent outsiders from being able to slide the window open.

Step 7: Secure the Unit in Place

Use the included hardware to screw through the top rail of the air conditioner (there should be pre-drilled holes in the rail) and into the window. This will help keep the unit from moving side to side.

Step 8: Slide out the Side Panels

Slide each attached side panel out to cover the remaining openings in the window on either side of the air conditioner. Use the included hardware to secure the slides in place.

Step 9: Plug in the Unit

Now that installation is complete, all that’s left to do is plug in the unit and enjoy the cool air. If using a previously used unit, remove the filter and clean and dry it before turning on the unit.

Maintaining a Window Air Conditioner

The main way to ensure your air conditioner performs well season after season is to keep the air filter clean. Most modern units will alert you when it’s time to clean the filter, but make it a regular habit to check the filter if this isn’t the case. Follow your specific unit’s instructions for proper cleaning practices.

Matney Construction, located in Mount Airy, Maryland, specializes in building new homes and residential remodeling. We know that the decision to build or remodel a home is no easy thing. As a family owned and operated business, we work closely with our clients to create their dream home, from custom floor plans and options, to bath and kitchen remodels. Whether it’s a single room or an entire home, we pride ourselves on meeting your quality standards, timeline and budget. Contact us today to have our professional design experts help you make your home unique, stylish, and in-tune with your personality. (410) 635-2500  info@matneyservices.com

Source: https://www.bhg.com/home-improvement/advice/maintenance-repair/how-to-install-window-air-conditioning-unit-properly/

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