How To Install Portable Air Conditioner In Horizontal Sliding Window

How To Install Portable Air Conditioner In Horizontal Sliding Window

How to Install a Portable Air Conditioner in a Horizontal Sliding Window

Portable air conditioners offer a convenient and cost-effective way to cool a single room or small space. They are ideal for apartments, bedrooms, offices, or any room that lacks central air conditioning. Installing a portable air conditioner in a horizontal sliding window is a relatively simple process that can be completed in a few easy steps.

Materials Required:

  • Portable air conditioner
  • Window mounting kit (included with the air conditioner)
  • Screwdriver
  • Level
  • Seam tape (optional)

Step 1: Prepare the Window

  • Open the window to the desired width to accommodate the air conditioner.
  • Clean the window frame and sill to remove any dirt or debris.

Step 2: Install the Window Bracket

  • Slide the window bracket onto the window frame and center it.
  • Use the included screws to secure the bracket to the frame.
  • Ensure that the bracket is level using a level.

Step 3: Attach the Exhaust Hose

  • Connect the exhaust hose to the exhaust port on the air conditioner.
  • Extend the hose to the window and secure it to the window bracket using the provided hose clamp.

Step 4: Install the Window Seal

  • Place the window seal around the perimeter of the window opening.
  • Press the seal firmly against the window frame and trim any excess material.
  • The window seal helps to create a tight seal between the window and the exhaust hose, preventing warm air from entering the room.

Step 5: Position the Air Conditioner

  • Lift the air conditioner and place it on the window bracket.
  • Slide the air conditioner until it is secure and the exhaust hose is properly aligned with the window seal.

Step 6: Secure the Exhaust Hose

  • Open the window slightly to create a small gap at the top.
  • Insert the exhaust hose through the gap and extend it to the outside.
  • Close the window to seal the gap around the hose.

Step 7: Test the Air Conditioner

  • Turn on the air conditioner and set it to the desired cooling setting.
  • Check for any air leaks around the window seal or exhaust hose.
  • If there are any leaks, adjust the seal or hose accordingly.

Additional Tips:

  • Use seam tape to seal any gaps between the window seal and the window frame.
  • Insulate the exhaust hose with foam or bubble wrap to improve cooling efficiency.
  • Position the air conditioner away from curtains or other objects that may obstruct airflow.
  • Clean the air conditioner’s filter regularly to maintain optimal performance.

Facts about Portable Air Conditioners:

  • Portable air conditioners are designed to cool small spaces (up to 400 square feet).
  • They offer the advantage of portability, allowing you to move them from room to room.
  • Portable air conditioners generally consume less energy than central air conditioning systems.
  • They may require an electrical outlet or extension cord to operate.
  • Some portable air conditioners come with additional features such as air purification, remote control, and sleep mode.

Table: Types of Portable Air Conditioners

Single-hoseAffordable and energy-efficientRequires less exhaust hoseLess effective in warm environments
Dual-hoseMore powerful and efficientRequires two exhaust hosesMore expensive
Window-mountedInstalled in a window frameCompact and space-savingMay require major installation
Cassette-styleMounted in the ceilingDiscreet and unobtrusiveProfessional installation required

Interesting Information:

  • The first portable air conditioner was invented in 1951 by Henry Galson.
  • Portable air conditioners are particularly popular in countries with hot and humid climates.
  • Some portable air conditioners come with built-in humidifiers to improve air quality.
  • It is important to regularly clean the exhaust hose to prevent mold growth.
  • Portable air conditioners can be used to dehumidify a room by running them on the fan mode without cooling.


  1. Can a portable air conditioner cool an entire house?

    • No, portable air conditioners are designed to cool small spaces (up to 400 square feet).
  2. How often should I clean my portable air conditioner?

    • You should clean the air conditioner’s filter once or twice a month during heavy use.
  3. What is the best way to position a portable air conditioner?

    • Position the air conditioner away from curtains or other objects that may obstruct airflow.
  4. Can I leave my portable air conditioner on all night?

    • Yes, most portable air conditioners have sleep modes that adjust the temperature and fan speed for overnight use.
  5. How can I improve the cooling efficiency of my portable air conditioner?

    • Insulate the exhaust hose with foam or bubble wrap and seal any air leaks around the window seal.
  6. What is the best type of portable air conditioner for my needs?

    • Consider the size of the space you want to cool and the features you desire when choosing a portable air conditioner.
  7. Can I install a portable air conditioner in a casement window?

    • Yes, but you may need a special mounting kit designed for casement windows.
  8. Does a portable air conditioner require a dedicated electrical outlet?

    • Most portable air conditioners require a dedicated electrical outlet to operate safely.
  9. How much does it cost to run a portable air conditioner?

    • The cost of running a portable air conditioner varies depending on the size and efficiency of the unit.
  10. Is it better to buy a portable air conditioner or a window unit?

    • Portable air conditioners offer greater flexibility and portability, while window units are generally more powerful and efficient.
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