Air conditioners are available not only as wall-mounted units installed indoors, but also as window air conditioners that are installed in a window. If you are unsure which option to choose, this article explains the features, advantages, and disadvantages of window air conditioners.
What is a window air conditioner?
A window air conditioner is an all-in-one unit that is installed in a window for use. It does not require an outdoor unit and can be installed as long as you have a window of the appropriate size.
Installation requirements are defined
Wall-mounted air conditioners require space for an outdoor unit, a hole for piping, and a dedicated electrical outlet, but a window air conditioner can be installed if there is a window of a certain size. The requirements are relatively flexible, so it is easy to introduce.
Easy to install even in rental properties
In rental properties, installing a wall-mounted air conditioner can be difficult because holes cannot be made in the wall. A window air conditioner, however, does not require a hole for piping, so it can be installed without issue in a rental property as long as there is a window of the appropriate size.
What are the advantages of a window air conditioner?
A window air conditioner can offer major advantages depending on the living environment.
It can also be installed on the side facing a shared corridor in an apartment building
Wall-mounted air conditioners can be difficult to install on the third floor of a detached house or on the side of an apartment building that faces a shared corridor. By contrast, a window air conditioner does not require an outdoor unit, so it can also be installed in rooms that face a shared corridor.
Lower cost
The unit itself can be purchased from around 30,000 yen, and because you can install it yourself, there is no installation cost. Compared with a wall-mounted type that can cost more than 100,000 yen, the overall expense can be reduced substantially.
What are the disadvantages of a window air conditioner?
After understanding the benefits, it is equally important to understand the drawbacks.
Lower cooling and heating efficiency than wall-mounted units
Even among units designed for the same room size, window air conditioners tend to be less effective than wall-mounted models. If it is installed in a place that receives direct sunlight, you may feel that it produces very little cool air.
Operating noise can be a concern
Many window air conditioners are louder in operation than wall-mounted models. In particular, noise may be bothersome when installed in a bedroom, so the installation location should be chosen carefully.
Appearance and sense of bulk
Because it becomes part of the window, it is more noticeable in the field of view and can feel visually bulky to some people. If design matters to you, this point deserves attention.
Electricity costs may be higher
Many models are slightly less energy efficient than wall-mounted units, so over long-term use the difference in electricity costs may become noticeable. It is also worth reviewing your electricity pricing plan.
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Frequently Asked Questions (FAQ)
- Q. Can I install a window air conditioner by myself?
- A. Yes. Many models are designed to be installed without tools, so there is usually no need to hire a specialist. However, it is essential to confirm the size of the window before installation.
- Q. Is permission required to install a window air conditioner in a rental property?
- A. In principle, permission is not required because no drilling is involved. However, installation may scratch the window, so it is advisable to check with the management company or landlord to be safe.
- Q. What room size is suitable for a window air conditioner?
- A. It is generally suited to small rooms of around 4 to 6 tatami mats. It is not ideal for larger rooms because cooling and heating efficiency declines.
- Q. Can a window air conditioner also be used for heating?
- A. That depends on the model. Some units are cooling-only, while others provide both cooling and heating, so please check before purchasing.
