Well, there are many variety sizes of air conditioners in the market at this time. The size of power cooling capacity is measured in BTU (the general parameter to measure the amount energy particularly for the heat energy). BTU stands of British Thermal Units. The mistake on the calculation of size between the size power cooling capacity of the unit and the size large space (square feet) of the room will create over or lower size problem that eventually decrease the efficiency performance of the unit. The lower size will make the unit cannot run powerfully to cool the room and on the other hand, over size will make the unit cool the room too fast and will make the humidity of the room be uncomfortable! Oversize is not good idea if we seriously want to keep the energy bill low.
Larger square feet of the room will require higher size of BTU cooling capacity. On the other hand, smaller square feet will need smaller size of cooling capacity. This means if you have a larger room then you need to buy air conditioning with higher BTU in size in order to make sure the unit will be able to cool down the room powerful enough. 18000 BTU air conditioner units are one of the common sizes that currently available in the market at this day.18,000 BTU unit, especially for portable air conditioning unit is usually designed for cooling any rooms with 700 square feet to 1000 square feet. This size is also available for some models of air conditioners, such as window AC units, ductless split units, portable AC models, and so on!
The variety of brands, features, energy efficiency ratings like SEER and Energy Star, designs are several factors that usually influence the prices of 18000 BTU air conditioners to purchase. But mostly, they are usually offered at around $300 to $800 or more. And there are a lot of brands to choose from, some of them are HAIER, Amana, Amcor, Maytag, LG, Gibson and still many more. They are usually offered with standard 1 year full warranty. In addition, most of them are usually available with SEER of 10.0 for the minimum level and SEER of 13.0 for the highest level of the efficiency performance.
The installations of 18000 BTU air conditioners are just little bit more complicated and quite difficult, especially if compared to smaller units with lower than 14,000 BTU for the size. But the installation is usually dependent on the mechanism of the design of the unit itself. Example for the unit with split mechanism usually will require more slightly difficult than units that are designed with free standing design.
In addition, the advance modern features that you will find; dehumidification mode, auto restart feature, sleep mode feature, timer, remote control (to control the unit without needing to touch directly the device), digital temperature display, inverter technology (make the unit can work 30 percent faster and more efficient), and so on. If want to choose and buy 18000 BTU air conditioning unit that will be placed in your office then better you avoid to purchase window models or portable models because they usually will produce unfriendly loud noise! But more advisable to buy unit with split mechanism that usually place the compressor to the outside the outside of the room so thus will work quieter!
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