The Ultimate Guide to Portable AC Units for Casement Windows


Casement windows are a popular choice for homeowners due to their versatility and aesthetic appeal. However, when it comes to finding a portable air conditioning unit that works well with these unique windows, many people face challenges. In this comprehensive guide, we will discuss the ins and outs of portable AC units for casement windows, including what to look for when shopping, how to properly install and maintain your unit, and some top recommendations to suit your needs. With this information, you can confidently choose the perfect portable AC unit for your casement windows and enjoy a cool, comfortable home all summer long.

What to Look for in a Portable AC Unit for Casement Windows

Before diving into specific product recommendations, let's first discuss the key factors to consider when shopping for a portable AC unit that works well with casement windows:

1. Size and Cooling Capacity: Portable air conditioners come in various sizes and cooling capacities, measured in British Thermal Units (BTUs). Be sure to select a unit that is the appropriate size for your room and has enough BTUs to effectively cool the space.

2. Window Kit Compatibility: Not all portable AC units come with a window installation kit designed for casement windows. Ensure that the unit you choose either includes a compatible kit or that you can purchase one separately.

3. Venting Options: Some portable air conditioners require venting through a window, while others offer more flexible venting options. Consider your specific needs and preferences when selecting a unit.

4. Energy Efficiency: Look for a portable AC unit with a high Energy Efficiency Ratio (EER) to save on energy costs and reduce your environmental impact.

5. Noise Level: Portable air conditioners can be noisy, so consider the noise level of the unit before making your purchase, especially if you plan to use it in a bedroom or other quiet space.

Installation Tips for Casement Window Portable AC Units

Once you've selected the perfect portable AC unit for your casement windows, follow these tips for a smooth installation process:

1. Secure the Window Kit: Properly install the window kit to ensure a tight seal between the unit and the window. This will prevent air leaks and keep your room cool and comfortable.

2. Vent the Unit: Make sure to properly vent the unit according to the manufacturer's instructions. This may involve attaching a hose to the unit and running it through the casement window, or using an alternative venting method if applicable.

3. Ensure Proper Drainage: Some portable AC units require manual draining of condensation, while others have a self-evaporating feature. Be sure to follow the manufacturer's guidelines for proper drainage to avoid water damage or other issues.

4. Position the Unit Correctly: Place your portable AC unit on a flat, level surface near the casement window to ensure optimal performance and prevent any potential safety hazards.

Top Portable AC Units for Casement Windows

Now that you know what to look for and how to properly install your portable AC unit, let's explore some top recommendations for units that work well with casement windows:

1. Honeywell HL Series: The Honeywell HL Series offers powerful cooling capabilities and a sleek design, making it a great option for casement windows. The included window installation kit is compatible with casement windows, and the unit features a self-evaporating system for easy maintenance.

2. Frigidaire Gallery Cool Connect: This portable AC unit boasts a unique, modern design and offers smart home compatibility for added convenience. The included window kit is designed for casement windows, and the unit has a high EER for energy efficiency.

3. LG LP1419IVSM: The LG LP1419IVSM offers powerful cooling and a high EER, making it an energy-efficient choice for casement windows. The unit also features a dual inverter compressor for quiet operation, and the included window kit is compatible with casement windows.

4. Whynter ARC-14S: This powerful portable AC unit from Whynter offers a high cooling capacity and a high EER, making it an excellent choice for large rooms with casement windows. The unit also features a self-evaporating system for easy maintenance, and the included window kit is compatible with casement windows.

By considering the factors discussed in this guide and exploring the recommended units, you can confidently select the perfect portable AC unit for your casement windows. With the right unit in place, you'll be well on your way to enjoying a cool, comfortable home all summer long.

Casement Window


Casement windows are the most common style of window. They feature hinged panels that swing open and closed. Casement windows are available in single panels or multiple panels. The direction a door swings, either to the right or the left, is called the handing. In addition to handing, window are identified as either inswing or outswing depending on whether they open into the house or towards the outside.


Our team of experts will work with you to develop a bespoke plan that fits your needs. We take a holistic approach to the planning process, combining our technical expertise with our knowledge of customer requirements and project constraints.


Freedom to dream "truly custom-made"

Doorwin provides one-stop solution for professional windows doors manufacturer and installation. We have been serving customers with our high quality and branded products in United States, Asia and worldwide.


This newly built private house is in Sydney, Australia. The area occupied by the fenestration system in our scheduled design drawings was up to more than 110 square meters. A wide range of design details made the perfect mix of modern aesthetics and traditional sophistication, the simulated vertical hung windows with tilt & turn opening systems in this home are absolutely breathtaking. SDLS (Simulated Divided Lites with Spacer Bar) brings some historical vintage feeling to the whole building without losing any energy saving performance. Long narrow fixed windows creating larger-than-life expenses, coupled with German high-end systems made this project stand out from the rest.

Simulated Hung Window with Tilt & Turn Openings

The client's idea was to maintain a certain vintage feel, and our aim was to meet the energy efficiency needs and standards of modern houses as much as possible while maintaining a retro design. Doorwin’s 61S simulated hung windows with tilt & turn openings is a respectful modernization of a classic architectural masterwork.

Why choose the tilt and turn opening method?

Because it generally has better air seals than sliding, single hung, or double hung window frames. Tilt and turn windows form a complete seal when fully closed, this means they are less prone to water leakage, and cold draughts and you’ll keep more of your heating indoors where it belongs. They can be opened in the upper tilt way to ventilate at a minimum opening status and are easy to clean outside of the glass; when there’s a good day, they can be opened as normal inward casement windows.

Large Energy Efficient Fixed Windows

Our well-crafted bespoke systems enhance the functionality and panoramic view of this modern house.

Huge, fixed glass walls up to seven meters long and two meters high bring great lighting and open views, making it really refreshing to the mind. Five meters high long narrow windows give the whole building a contemporary aesthetic.

Every window’s placement and shape not only add to the uniqueness of this home but also provide a more energy-saving ability for the owners.

Doorwin energy-efficient integrated glazing units feature double-pane glass, warm-edge spacers, argon gas fill, Low-E coatings, and fully tempered glass, they can not only create a comfortable and natural indoor environment but also save electricity bills and heating bills of more than 100 USD for the owner, it’s a real bargain compared to choosing a regular glazing set.

Custom Designed Thermal Break Aluminum Entry Door

Aluminum Door offered an air of uniqueness and elegance to a home. With their luxurious patterns and beautiful finishes, it provides this house with a bounty of aesthetics and security. Aluminum entry doors allow you to resist any weather extremes, corrosion, and pests. So aluminum is one of the most resilient and durable materials you can select for front doors considering the price/performance ratio.

With pieces of double panes, and Low-E tempered glass. The door provides a good insulation performance.

Custom Designed Grilles and Transom

Divided lite windows and doors offer unique architectural solutions for buildings without compromising energy efficiency or aesthetics. Doorwin provides multiple muntin and glass options to customize your divided lite windows and doors. Further customization is available with a variety of colors and materials, creating an infinite number of design combinations to best suit your style.

In this project, we use SDLS (simulated divided lites with spacer bars), these bars permanently adhere to both sides of the glass, and spacer bars are installed between the glass, this is the most energy-efficient way to create the look of classical décor grilles. The windows in the bathroom bedroom and study have an Arch Transom Design, making these rooms, which are often used by the owner, have some traditional aesthetics.

BTW, Doorwin offers free design assistance, so if you need a custom design like this one, contact us right away and we will provide you with the most aesthetically and functionally pleasing design solution.

German Imported Hardware System

For windows and doors, hardware is as important as the engine is to the car. The continuous technological innovation of the European hardware industry has strongly promoted the performance improvement and functional innovation of windows and doors. In this project, Doorwin uses Hoppe™ multi-point locks, hinges, and handles from Germany.

Multi-point lock systems provide not only the burglar-resistance but also a tighter compression seam, making the window keeps good energy-efficient performance. Together with Technoform Bautec’s insulation edge bond and sealant strips, these make up our products' top insulation and energy-saving performance.

Save Your Money On Installation Costs

We have several international patents to reduce clients’ labor costs, such as our unique flanges and assembly type tubular design, which is different from the other products on the market. What sets us apart among Chinese counterpart is that all our products are equipped with nail fin structures for quick and easy installation. Labor costs during installation may exceed of the window and door price, therefore, our exclusive patent allows users to not only get a significant increase in installation efficiency, but also greatly reduce the labor cost of window and door installation. A cost that may bring you unexpected savings that far exceed the price difference you may care about now.

Free Design Assistance

With our own expertise, we provided the no-cost design development and contract documentation with CAD & BIM drawings, including elevation, details about the project, and installation help.

Before production, we will provide accurate sample drawings, which will clearly show the cross-sectional pattern, size, opening method and direction, pattern of the warm spacer, and the installation nodes. We will not go into production until you have signed off on the drawing to ensure that you receive a final product that meets the exact requirements of your project.

About Doorwin

Doorwin's professional packing system guarantees all products are delivered safely and without any damage. We apply a four-point packing system. Firstly, adhesive plastic film is applied on interior wood frames and exterior aluminum frames to avoid scratches on the surface. Then, a paper board is applied after we apply air bubble film surrounding the whole windows/ doors to avoid any destruction or clash. Lastly, we place them into a durable non-fumigation plywood crate to avoid any possible damage during transportation.

With years of experience shipping our products worldwide, we could guarantee to ship our products to their final destinations intact and without any damage.

About Doorwin Factories

Doorwin is one of the most professional window & door manufacturers are known for its great customized products. In Doorwin, a variety of colors, styles, and sizes of products are available to meet the client’s unique requirements. We own three ISO9000-certified modern factories in China. With a factory area of 20,000 m2 and a production capacity of 100,000 m2 per year. Doorwin Group has the scale to ensure timely delivery and the flexibility to reduce manufacturing lead times to as short as 18 days.