Finding an effective air conditioner for crank windows can be challenging because these windows open by turning a handle or crank, rather than sliding up or sideways. Standard window air conditioners are usually designed for vertical sliding windows, but there are several tailored solutions that cater to crank windows. This article explores the best air conditioner options for crank windows, highlights installation tips, and provides useful recommendations to help American homeowners and renters keep their homes cool during warmer months.
| Air Conditioner Type | Compatibility with Crank Windows | Installation Difficulty | Energy Efficiency | Typical Cost Range |
|---|---|---|---|---|
| Casement Window Air Conditioners | Designed specifically for crank windows | Moderate | Moderate to High | $200 – $600 |
| Portable Air Conditioners | Universal, no window type needed | Easy | Moderate | $250 – $700 |
| Through-the-Wall Air Conditioners | Requires wall modifications, independent of window type | High | High | $500 – $1,500 |
| Window Air Conditioner Adaptors | Allows standard units to fit crank windows | Moderate | Varies by AC unit | $30 – $100 plus AC unit cost |
Understanding Crank Windows and Their Unique Challenges
Crank windows, also known as casement windows, open outward by turning a crank handle. Unlike sliding windows often seen in many American homes, the panes swing on hinges, creating a distinct window frame shape. Because of their design, installing a traditional window air conditioner can be problematic. Standard air conditioners are tailored for vertical sliding windows, which offer a straight and unobstructed opening for installation.
Challenges include:
- Curved or uneven frames that don’t support typical mounting brackets.
- Difficulty sealing gaps around the unit due to the outward-swinging pane.
- Restriction in window operation when a unit is installed.
The design variations in crank windows make it essential to explore air conditioners specifically compatible with casement windows or alternative cooling solutions.
Casement Window Air Conditioners: The Most Compatible Solution
Casement window air conditioners are specially designed to fit the irregular shapes and opening mechanisms of crank windows. These units generally have a flat, narrow profile to snugly fit within the window’s frame without obstructing its operation too much.
Features of Casement Window Air Conditioners
- Custom Fit: Built to accommodate the outward swinging nature and unique frame size of casement windows.
- Easy Installation: Usually requires securing mounting brackets and sealing parts but avoids complicated window modification.
- Energy Efficiency: Many models come with energy-saving features such as programmable timers and adjustable thermostats.
- Ventilation Options: Some units offer exhaust fans or dehumidifiers, enhancing indoor air quality.
Popular Brands and Models
| Brand | Model | Cooling Capacity | BTUs | Approximate Price |
|---|---|---|---|---|
| Friedrich | Uni-Fit QS Series | Compact casement fit | 5,000 – 8,000 | $400 – $600 |
| LG | LW8016ER | Casement compatible with adapter | 8,000 | $350 – $450 |
| Comfort-Aire | Casement Window Air Conditioner | Designed specifically for crank windows | 5,000 – 7,000 | $250 – $400 |
Portability and Convenience: Portable Air Conditioners for Crank Windows
Portable air conditioners offer a flexible solution for homes with crank windows without the need for complicated window fittings. These units stand on the floor and exhaust hot air through a vent hose connected to the window using an adaptor kit.
Advantages of Portable AC Units
- Universal Installation: As the exhaust hose is vented through the window, there are no restrictions related to window type.
- Mobility: Can be moved from room to room as needed, advantageous for renters.
- No Permanent Installation: Avoids damage or modifications to window frames.
Portability Challenges
- Exhaust hose requires a vent window kit, which may reduce natural light and airflow.
- Generally noisier than window units.
- Some models require drainage for condensation management.
Using Air Conditioner Adaptors for Crank Windows
For standard window air conditioners designed for sliding windows, special adaptors and mounting kits can be purchased that allow installation in crank windows. These adaptors adjust the window frame so the AC unit can fit securely and seal gaps effectively.
Adaptor Benefits
- Cost-effective way to use existing or standard air conditioners.
- Widely available from HVAC suppliers and online retailers.
- Usually easy to install alongside the air conditioner unit.
Considerations When Using Adaptors
- Proper sealing is essential to prevent air leaks.
- Make sure the adaptor matches the window dimensions accurately.
- Installation may require basic handyman skills.
Through-the-Wall Air Conditioners: A Permanent Cooling Solution
Through-the-wall air conditioners bypass the window issue entirely by being installed in a cut-out hole in an exterior wall. This approach offers high energy efficiency and does not interfere with crank window operation.
Advantages of Through-the-Wall Units
- Permanent installation provides excellent insulation and cooling efficiency.
- Free up window space and light since the window remains uninhibited.
- Lower noise levels indoors compared to portable or window units.
Disadvantages
- Usually more expensive due to installation costs.
- Requires professional installation or DIY skills for wall modification.
Energy Efficiency and Cooling Capacity Considerations
When selecting an air conditioner for crank windows, energy efficiency and appropriate cooling capacity based on room size are critical factors. Over- or under-powered units can waste energy or leave rooms inadequately cooled.
| Room Size (sq ft) | Recommended Cooling Capacity (BTUs) |
|---|---|
| 100 – 150 | 5,000 – 6,000 |
| 150 – 250 | 6,000 – 8,000 |
| 250 – 350 | 8,000 – 10,000 |
| 350 – 450 | 10,000 – 12,000 |
Look for units with ENERGY STAR certification for better energy savings.
Installation Tips for Air Conditioners on Crank Windows
- Measure the window frame precisely to ensure compatibility and reduce leaks.
- If using adaptors, follow the manufacturer’s instructions for proper sealing to prevent drafts and water intrusion.
- Use weatherstripping or foam seals around the installed unit for additional insulation.
- Ensure the unit is securely mounted to prevent vibrations and maintain safety.
- For portable units, invest in a quality vent kit tailored for casement windows.
Maintaining Air Conditioners for Crank Windows
Regular maintenance extends the lifespan and efficiency of air conditioners. Key maintenance tips include:
- Clean or replace filters every 1-3 months to maintain airflow.
- Inspect and clean the evaporator and condenser coils annually.
- Check seals and caulking around installed units for wear and repair as needed.
- Clear drainage pans and hoses to avoid water buildup.
- For portable units, store properly during off-season to prevent damage.