As a result, the air can feel humid and less than desirable, whereas a smaller unit will cool and dehumidify space at an appropriate rate, leaving you with cooler, comfortable air and circulation. So when you’re looking for a window AC unit, consider that smaller units are often more effective – if you’re looking to cool a small amount of space (if you’re cooling a larger space, we also recommend a unit that’s small but still powerful – read below). There are hundreds of A/C products on the market, and not all of them are worth your time and money. This 39.7 lb. Open the window and lift the air conditioner into the window. They note that larger units can “perform less efficiently and less effectively than a smaller, properly sized unit” because the room will be cooled before it can be properly dehumidified, or have the moisture removed from the air. But the good news is that it still has a pretty decent energy efficiency rating of 11.0. Another cool feature is the Clean Air button. Majority of the air conditioners that fit narrow windows fall between the 4000-6000 BTU ratings – enough to cool spaces as big as 400 square-feet. To help you come across the best compact window air conditioner that fits perfectly in your window, we invested considerable hours in mapping out the specifications and performance statistics of more than 30 models – ranging from Frigidaire to General Electric. We participant in the Amazon Services LLC Associates Program, an affiliate advertising program which we earn fees by linking to Amazon plus other affiliated sites. Buy an air conditioner too small, and you will sweat yourself through summer. There are several factors that influence your running costs, such as the units EER rating, which gives an idea as to how much power (watts) it consumes for the cooling output (BTUs). This model was certified by Energy Star in 2016 and has an impressive EER of 12.2. Multiplying it by the average unit cost per kWh across the United States will give you your units running cost per hour. It cools down the room very fast and keeps it cool for hours and hours. Sylvane is also an excellent solution as they will regularly offer discounts to first-time customers. While the 6000 BTU unit weighs about 45 pounds, this one weighs just under 40. $/year = Estimated or approximate cost per year based on brand information, testing and advice. Portable air conditioners as the name implies, these have the distinct advantage of being easily moved around. Window air conditioners provide consumers the necessary escape from the scorching heat of the summer, without straining the pocket thanks to their energy efficient operation. A small window air conditioner can use anywhere from 500 watts to 800 watts on average, whereas the medium and larger units consume in the range of 900-1440 watts. The EER has a significant impact on the power bill that you receive. It fits well in compact window spaces with dimensions of 15.2 x 16 x 12 inches. To get the hourly rate of consumption, divide this number by 1000. Despite that small size, this unit still packs a pretty mean punch. Grab the sides instead of the back and front when you pick it up or wear gloves to protect your fingers. It is calculated by dividing the cooling capacity (BTUs) by the power input (Watts) – the higher, the better. Some users will appreciate its simplicity while others may wish for more. We’re here to break down why and to help you choose the unit that will best fit your budget, room size and needs. EER is the rating given to air conditioners pertaining to the amount of power they consume. From the #1 product on this list, you already know that Frigidaire is a well-respected brand for AC units, so there are quite a few compact models from this manufacturer available. You don’t have to get up in the middle of the night and walk over to the unit to change your settings. Is the unit being installed in a bedroom, kitchen, or lounge? The machine has a reusable filter that can be removed and washed with dish soap and warm water. While window air conditioners continue to lead consumer preferences in regards to an optimal cooling option for small spaces, there are other smaller air conditioning alternatives available, such as: Wall mounted air conditioners, also called split system air conditioners, are easy-to-install and come with the advantage of being remote controlled.