Physical Address
304 North Cardinal St.
Dorchester Center, MA 02124
Other Models We Tried
LG 12,000 BTU Air Conditioner for $379: The LG 12,000 BTU Smart Window Air Conditioner provides efficient cooling for large rooms at a surprisingly low price. It weighs 90 pounds and requires professional installation with a bracket. Its 60-decibel performance puts it squarely in the middle of the pack for noise. That said, WIRED reviewer Lisa Wood Shapiro found that it blends into the room well with its clean and white design, and that the adjustable light filter is useful. The program was difficult and difficult to use in Wood Shapiro’s experiment, but it is far from there.
Friedrich Kuhl Air Conditioner for $1,228: This unit from Friedrich is one of the most expensive we’ve tested, and one of the heaviest – in part because of the steel frame designed for easy maintenance and preventing the first floor from breaking. This model allows you to add custom Friedrich FreshAire MERV 13 air filter when cooling. The screen is easy to read, and the device comes with a remote. The app allows you to schedule usage during the week, but note that the connection to the smart app was limited, and only connected to 2.4 Ghz signals.
EcoFlow Wave 2 for $1,299 (but often sells for less): Wood Shapiro tested the latest model, but previous EcoFlow models are often available at lower prices. After happily experimenting with EcoFlow Wave 1 for over a year in his wife’s office, WIRED editor-in-chief Julian Chokkattu fell in love EcoFlow Wave 2 (8/10, WIRED Recommends) because it’s both light and cheap, with a maximum 5,100 BTUs (up from 4,000). The 6,100 BTU heating system means you can continue to use it in the winter for heating. The company says it is best for rooms up to 107 square meters. You need to place it near a window so that one of the included channels is connected to the air to take the hot smoke from the back of the room. What makes this device work differently is its other power sources. You can use an AC outlet, but you can also buy one additional battery to work when there is no electricity, or connect it to solar power.
Zero Breeze Mark II for $999: With its 2,300 BTU, the Zero Breeze (7/10, WRED Review) won’t have the same cooling capacity as the EcoFlow Wave, but it’s much lighter at 17 pounds. This bundle includes a battery that makes the whole thing weigh 30 pounds, but you get four hours of use without having to sit next to a wall. Like the EcoFlow, you get a few pipes to channel the smoke and direct the air to a specific area, but unlike the EcoFlow, you can’t charge the battery and use the AC at the same time.
Zero Breeze Mark III for $1,399: As WIRED reviewer Chris Null writes (7/10, WRED Review), the Mark III is larger than the Mark II and heavier, now 22 pounds. Add in the 1,022-Wh battery and you’ll pack another 14 pounds, though that frees you up from being near a power outlet. New to the Mark III is that batteries can now be placed in series and charged in series, each daisy chained to the next (although at $600+ per battery, this can get expensive). Each Mark III battery also has additional outputs that can be used for other devices – one USB-C port, one USB-A port, and a 12-volt DC socket. However, the Mark II battery had all of the above plus a second USB-A port. There is no word that this has been removed. However, the new model is bigger, improved by many standards and the right purchase for outdoor enthusiasts.
Frequently Asked Questions
Do I Need a Sized Air Conditioner?
Look for BTUs, or British thermal units. In the case of air conditioners, BTUs per hour measure how much heat the compressor can remove from a room. It’s a quick and easy way to determine if the AC unit is powerful enough to cool your space.
The BTU measurement also helps you avoid using a device that is too powerful, which cools too quickly without damaging the humidity, which can lead to the formation of mold in the room and inside the device.
To find the right air conditioner for your room, you’ll want to find the average size of your room by multiplying its length by its width. The US Department of Energy guidelines order at least 20 BTUs per square foot. But this number also depends on good qualities and performance. For a 150-square-foot room, most recommendations are to choose a 5,000 BTU AC unit. If the room gets a lot of sun, has a high ceiling, or is well insulated, you may want 6,000 to 7,000 BTUs for the space.
When in doubt, your best bet is to use a BTU calculator. For a real comparison, here it is complex whole house BTU calculator which takes into account the architecture and design, including your location and climate. For a quick and dirty BTU calculator, try it here.
Check the energy efficiency rating (CEER). The label on any appliance you buy should include the CEER rating, which is one of the best ways to determine the efficiency of a unit. You will usually see a number between 9 and 15. The higher the number, the less you will pay when the electricity bill comes. A cheap window AC unit will save you money initially, but you could end up spending more in the long run. The US Energy Star program he has a page which allows you to browse AC units based on their CEER ratings.
Check local laws. Some cities, like New York, require brackets to support your window AC. Short as this example should do the trickalthough we have never tried it. You may also need to go to a hardware store for plywood to make sure your window is flat, but that depends on the type of window you have and the model of AC you buy. Get a friend to help you with the installation. These units can be heavy and difficult to handle, and the last thing you want is to drop them out of the window.
Test your window. Before you buy, read up on the supported window types and sizes of the AC unit you’re looking for, and test your window to ensure it’s safe. Make sure to seal any gaps as much as possible with foam. (You can always buy more if you need them.)
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