One of the best ways to beat the summer heat and stay cozy indoors is through indoor air conditioning. For those who find central air conditioning far too expensive, a window AC is the next best thing. Fortunately, new AC units are much better now and far from the huge energy hogs they once were.
If you are considering replacing your outdated window AC, this article can serve as your guide to a new AC unit. Here are some key things to consider when shopping for a new window AC unit:
Square Footage
Before splurging on a new AC unit, you need to ask yourself one basic question: How well can the AC unit cool a room? Window AC units are all rated using British thermal units (BTUs), which range from 5,000 to 12,000. Basically, BTUs tell you how effectively a specific device can lower the temperature in a specific space.
For a small room (around 150 square feet or less), a 5,000 BTU model would be ideal. For slightly larger rooms (around 340 square feet), an 8,000 BTU window unit is considered your best option. If you want to cool a small apartment or a large room, it is recommended that you opt for something with more power.
Bonus Tip: As a general rule of thumb, you need at least 20 BTUs for every square foot you want to cool.
Size of the Window
Since there is no standard for window size, measuring the dimensions of your window is considered a must. Once you have the information, compare it with the specifications of your new unit. This is crucial so there won't be any nasty surprises when the time to install the unit comes.
Bonus Tip: A brace or bracket can be used to hold the AC unit in place.
Cooling Capacity
Cooling capacity is another key element you need to consider when choosing a window AC. For efficiency, opt for a unit with a BTU level that suits your space. Why is this important? A window AC with too little BTU can eat up your energy budget when cooling a large space.
On the other hand, a window AC that is too large for your space won't be able to evenly dehumidify and cool your space. This can also leave your room air more susceptible to hot and cold pockets.
Bonus Tip: To determine your ideal cooling capacity, calculate your space size in square feet then match it with the right amount of BTUs.
Energy Efficiency
Window air conditioners will not only cost less, they are also cheaper to operate over the long-term, given they are sized accordingly. To gauge the efficiency of your window AC, there are two main features you should look for:
Energy Star Rated - Typically, energy rated units use around 10 percent less energy than other models, saving you money on operating costs. Many states also provide rebates for customers who purchase Energy Star models.
EER (Energy Efficient Ratio) - The measurement tells you the number of BTUs the unit utilizes for each watt of power. When it comes to EER, there is one thing you need to remember: the higher the EER, the more efficient the unit.
Bonus Tip: According to the U.S. Department of Energy, the ideal AC should have an EER of 10.0 for the best cost and energy savings.
Maintenance
Window air conditioners will require routine maintenance to keep them in peak condition. Remember that window air conditioners are more vulnerable to dirt and debris, which can accumulate on the back or inside. Over time, dust and particles can also build up on the unit's air filter.
When left unattended, all those factors can significantly minimize the effectiveness of your window AC. To ensure long-lasting operation, ensure it is cleaned thoroughly at least once a year. For other specific maintenance tips for your model, it is recommended that you refer to your owner's manual.
Bonus Tip: Some window air conditioners also come with mosquito traps that allow condensation to flow out without allowing insects inside.
Final Thoughts
Window air conditioners nowadays are a far cry from the ones available many decades ago. They are more powerful, more efficient, and hands down smarter. So when picking the best unit for you, the question is not which device is best. It's which device will suit your needs best.
About the author
Rachel Watson is the Senior Content Editor of New AC Unit. Aside from heading the company's content marketing strategies, she writes articles about how to stay fit and energy-efficient home living.
