When the hot weather hits, the luxury of an air conditioner is something that few can turn their noses up at.
Buying an air conditioner however, is a little more complicated than just going out and getting the biggest and the best to beat the summer heat! Read on for tips on how to purchase an air conditioner and for our top recommendations.
| Window Units | ||||||||
|---|---|---|---|---|---|---|---|---|
| | ||||||||
| Accessories | Portable Unit | |||||||
| | | |||||||
Buying a unit that is too big will result in the room feeling damp, while a unit too small will run continuously without ever effectively cooling your space. Other factors that may influence the BTU required to cool a space are the direction that the room faces, the ceiling height and the number of windows in the room.
The key to purchasing an energy and temperature effective unit is to determine the square footage of your room. You can do this by multiplying the length by the width and then referring to the recommended BTU's by area in the table below:
| Area (Square Feet) | Capacity (BTU's per hour) |
| 100 - 150 | 5,000 |
| 150 - 250 | 6,000 |
| 250 - 300 | 7,000 |
| 300 - 350 | 8,000 |
| 350 - 400 | 9,000 |
| 400 - 450 | 10,000 |
| 450 - 550 | 12,000 |
| 500 - 700 | 14,000 |
| 700 - 1000 | 18,000 |
There are three main types of air conditioners: Central, Portable and Window units.
Whereas central air conditioners feed cool air throughout the house via a system of ducts, portable and window units are only able to cool one room at a time. Central air conditioning is the most expensive of the 3 options and is usually professionally installed.
Window Units
These are designed for self-installation and will fit into double-hung, sliding and casement windows. They are semi-permanent once installed for the season. Click here to shop all window air conditioners.
Portable Units
Although they may not be the most energy efficient, portable air conditioners can easily be moved between rooms. They are usually on wheels and have a hose that needs to be vented out of a window. Click here to shop all portable air conditioners.
The Energy Star rating on an air conditioning unit means that it meets strict energy efficiency guidelines set by the US Environmental Protection Agency and the US Department of Energy.
Saving energy prevents pollution, which makes the Energy Star qualification an important feature for environmentally conscientious buyers. This prestigious stamp guarantees to use at least 10% less energy than conventional models, and usually a built-in timer provides better temperature controls, thereby promoting minimum energy usage.
If every air conditioner were Energy Star qualified, it would prevent 1.2 billion pounds of greenhouse gas emissions from entering our atmosphere.
Be sure to follow manufacturer's instructions for the installation of any air conditioner. It is important for window units to be stable for obvious safety reasons. Window units should also be installed in a shaded window if possible to maximize cooling efficiency.
Maintenance is as simple as cleaning the air filter and regularly inspecting and dusting or vacuuming the unit to prevent dirt build-up on the condenser coils.
Whether you plan to pick yours up at a thrift store (how very...



