This will be my first time purchasing a window unit, and I'm a little confused. Most charts indicate that a 7,000 BTU unit is appropriate for a ~250 square foot room, however from what I can tell, these do not exist (only 6,000 and 8,000 BTUs are available). Also, none of the guides I see mention ceiling height, which I figured would be important (i.e. cubic footage seems more appropriate than square footage). Finally, many say that getting a unit that is too powerful actually won't cool as effectively, but don't really explain what this means exactly - if I put a 20,000 BTU unit in a 100 square foot room, would the room really be warmer than it would be with a 5,000 BTU unit? Or do they just mean that it would be overkill? Finally, some 6000 BTU units, like the GE AEL06LS say that they are only appropriate for 150 square foot rooms, and I don't understand why. Anyway, my room that is 233 square feet, with ~9.5 foot ceilings. Would it be best to get a 6000 BTU unit or a 8000 BTU unit?

The EPA has room size to BTU chart with some caveats for certain situations: Room size A/C size 100 up to 150 -> 5,000 BTU/hr 150 up to 250 -> 6,000 BTU/hr 250 up to 300 -> 7,000 BTU/hr 300 up to 350 -> 8,000 BTU/hr 350 up to 400 -> 9,000 BTU/hr 400 up to 450 -> 10,000 BTU/hr 450 up to 550 -> 12,000 BTU/hr 550 up to 700 -> 14,000 BTU/hr 700 up to 1,000 -> 18,000 BTU/hr 1,000 up to 1,200 -> 21,000 BTU/hr 1,200 up to 1,400 -> 23,000 BTU/hr 1,400 up to 1,500 -> 24,000 BTU/hr 1,500 up to 2,000 -> 30,000 BTU/hr 2,000 up to 2,500 -> 34,000 BTU/hr Make any adjustments for the following circumstances: If the room is heavily shaded, reduce capacity by 10 percent. If the room is very sunny, increase capacity by 10 percent. If more than two people regularly occupy the room, add 600 BTUs for each additional person. If the unit is used in a kitchen, increase capacity by 4,000 BTUs. Consider where you install the unit.

If you are mounting an air conditioner near the corner of a room, look for a unit that can send the airflow in the right direction. If you fall into any of those special situations, that may help you with sizing. 18000 btu window air conditioner and heaterOtherwise, since you're between sizes of available units, unless your climate is particularly mild, I'd go up a size to allow a bit extra cooling capacity for hot days.rv air conditioner repair san diego Height doesn't matter because cold air sinks. 30000 btu window ac unitsRegardless of the ceiling height, you only need to cool the bottom 6-7 feet. And none of these "room size basis" metrics pay any attention to the question of "what is the insulation level" "how much solar heat gain is there" "what is the window area and insulation"...since most consumers don't know - so they have handy rules of thumb...

Room height does not matter so much unless you are 9 feet tall. Do you think (or have reason to believe) the room is well insulated, or not? Does it get absurdly hot from the sun on a regular basis, or not? If well insulated and not a solar oven, go 5-6,000; if poorly insulated, go 8,000; if a solar oven, go 8,000. Don't go 12,000 unless it's terribly insulated AND a solar oven... One problem with oversizing is poor dehumidification. @statueuphemism's comment has a good handle on the other.The requested URL /wordpress/?p=1658 was not found on this server.LG's Art Cool - Stay in Style The innovative Art Cool Picture indoor unit allows you to display your favorite image in an easily customizable picture area. Heat, Cool, Style and Design all in one ductless air conditioner system. Friedrich Room Air Conditioners Friedrich Kühl is a game-changer. It's powerful and now it's wireless. Access units remotely or you can even create schedules and more, all from your computer, tablet or smartphone.

Mitsubishi 3D Inverter Systems Mitsubishi MSZ-FH ductless air conditioner in both single-split and multi-split applications. Redefine customized climate comfort. It's 3D isee sensor can divide the room into 752 fields and scan it in 3D. Individual Indoor & Outdoor Units Dual Zone Air Conditioner Tri Zone Air Conditioner Quad Zone Air Conditioner Five Zone Air Conditioner Multi Indoor & Outdoor Units Mini Ducted Air Conditioner Air Con Air Conditioners Samsung Ductless Air ConditionerFor Oman, Kuwait, Qatar, and BahrainWhat Size Air Conditioner Do I Need? I’m a huge baby about temperature, and the fan just wasn’tSo in the midst of a recent heatwave I decided I was going to bite the bullet and get an air conditioner. But when I started researching online, I found myself confused by the various units' cooling and efficiency numbers, with prices seemingly directly correlated with each. But I didn’t really know what any of them meant.

Given the size of my apartment, how much air conditioner do I need? “Many people buy an air conditioner that is too large, thinking it will provide better cooling. oversized air conditioner is actually less effective — and wastes energy at the same time,” explains the very helpful Energy Star website. remove both heat and humidity from the air. If the unit is too large, it will cool the room quickly, but only remove some of the humidity. room with a damp, clammy feeling. A properly sized unit will remove humidity effectively as it cools.” Luckily, they have a convenient chart for figuring how much AC power one needs for a room. I was just going to put one in my living room, so I measured the room with a handy tape measure. It’s not the most exact measurement in the world, but it’s close enough. My living room is roughly 330 square feet, which the chart tells me means I need an AC unit with a capacity of 8,000 BTUs per hour, which was way less than I expected (here's a model which comes highly recommended).