As far as I can tell, based on square footage alone I would be looking for a 5000 btu unit, but I am wondering if 6000 might be better given the location of the room and those additional factors. I definitely do not want to cause moisture issues by getting too big a unit, but do not want to undersize and have a unit not work either. When buying an air conditioner, you should pay attention to the wattage and the BTU/h rating. In terms of air conditioning, this is referred to as cooling capacity - 1,000 BTU/h is equivalent to 293 watts. Calculations show that about 6800 BTU are needed for 20 square metres of space. Therefore, a 7000 BTU air conditioner or portable air conditioner is best suitable for small apartments that come with 46 square metres of space. To better illustrate what size of an air conditioner you need, let’s have a look at a BTU chart: Air Conditioner BTU Chart; With 12,000 BTU (1 Ton) Room Size Example Not too small. You don’t want to get hot in the summer because you bought a 6,000 BTU portable air conditioner for a 1,000 sq ft apartment. Hello, I’m looking for a solution for our new house with casement windows. Ultimately, I know a mini-split system will be best, but it’s out of our budget right now. So, we’re looking at getting several portable units with plexiglass window covers (with cutouts for the exhaust). The master bedroom is on the 2nd floor, 425 sf, including the bathroom. Mostly 8′ ceilings with one peaked area up to 12′. I’m assuming a 12,000 or 13,000 BTU unit. Another bedroom is 160 sf, so I’m assuming an 8,000 BTU unit. We probably won’t run this one unless we have guests. Now here’s the fun part- an open concept area with the living room, dining room, kitchen, plus the hall, laundry room, a half bath, and a full bath. That area is about 900 or 1000 sf, with many windows and a cathedral ceiling in the living room up to 25 feet or more. I’m thinking 3 units- one in the living room, one in the laundry room doorway in the hall (aimed at the kitchen), and one on the upstairs landing above the living room. But I don’t know what size I’ll need for those 3 units. Any advice? Anything we need to be aware of for electrical systems? Or single vs dual hose units? We’re in the northeast US. Thanks for your help! Reply

Designed in Guildford and manufactured in China, Meaco’s MC9000 is intended to cool rooms of between 16 and 26 square metres. Given that the average new-build UK living room is a little over 17 square metres in volume, that makes this model a prime candidate for most homes. Class A Energy Efficiency: The R290 refrigerant used is up to 690 times more eco-friendly than traditional air conditioning gasses.

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You can start with a smaller cheaper portable dehumidifier. If that dehumidifier, working with the 5 ton AC unit, can lower the humidity levels below 50%, your AC will be able to generate more airflow and provide relatively more cooling since it doesn’t have to struggle against high humidity levels. If a portable dehumidifier is too small, a ducted dehumidifier is a solution. If you want to properly cool down a 300 square foot area (or room), you need a 6,000 BTU air conditioner. Obviously, the problem arises when you have a tiny 12×12 room, for example. According to the US Department of Energy directive, an air conditioner’s most appropriate size would be 2,880 BTU unit. The best you can do here is to buy a small 5,000 BTU window or a small 8,000 BTU portable AC unit (more about the smallest AC units here). We want an air conditioner that has just the right amount of cooling effect. That’s why by knowing the square footage of the area we want to cool down, we can calculate how many BTUs should our air conditioner have. How many people are in the room? One person gives off 100 watts of heat, which the air conditioner must compensate for. The BTU calculator and chart work best for standard room height. Obviously, if you have a tall ceiling (older buildings have +10 ft ceilings), you have to add a bit of cooling power in BTU.

When the hot summer makes rooms unbearably warm, the right air conditioner helps a lot. In the following overview, we provide detailed information and recommendations on the best air conditioners with a cooling capacity of 7000 BTU and more. However, to get a perfectly-sized air conditioner with just right enough cooling power and no energy overspending, you should consider some additional factors. These are: The trendy portable air conditioners, for example, have a cooling capacity of 6,000 BTU to 14,000 BTU. According to Go Downsize, the average size of studio apartments in the US is about 500 sq ft. That means that for a small apartment, you don’t need expensive central air conditioning. You can install an average-sized 10,000 BTU portable air conditioner, which will save you tons of money. hour start/stop timer to pre-cool (e.g. before you arrive home or at the office) or to automatically switch off when you are asleep Beat the summer heat in the most effective way possible – say hello to this 765W mobile air conditioner from Zephyrus. A small and compact design that can fit into small and tight spaces easily, it features three functions over two speeds: cooling, dehumidifying and ventilating, allowing you to be in control and set to a mode that best suits you. A built-in 24-hour timer allows you to set the unit to run until a certain time – perfect for when you want to use it getting to sleep but don’t want it on as you wake up, with its auto shut-off function preventing electricity from being wasted when the tank is full. Remote control included, 2 x AA batteries required but not included. Features and BenefitsRemote Control Included– Allows you to control unit when you’re not close to it. Powered by 2 x AA batteries (not included). If you are not sure of the facts, it is better to buy a unit of a larger rating. This way you can be sure that your room will be cooled according to your wishes! The BTU needed to cool down a room of known footage that can be calculated. According to The U.S. Department Of Energy recommendation for the size of room air conditioners: If it breaks we'll fix it, if it develops a fault we'll get it working again. We'll instruct either the manufacturer or a certified repair centre to repair it. BTU in air conditioners is simple a metric of how much cooling effect that particular AC unit can produce.

You get two window kits with the supplied 1.8m duct as standard – a fabric one designed to be attached via supplied Velcro strips, plus one that comprises a trio of hard plastic window ‘plates’. When joined together, the latter also allows you to vent the duct through a sliding door – though you’ll be left with a small gap at the top. This is still far better than the window kits offered with most air conditioners, a big point in the Meaco’s favour. The building is a townhouse with 3 floors and the room is on the 3rd (top floor) and is directly under the roof which gets the hot sun of San Diego. The bedroom also has an attached bathroom and is the only thing on the top floor next to a very small hallway up a flight of stairs. This is also the only room in the house that will have an ac ( we are renters and that is nonnegotiable at the moment) and the house in general and especially that room gets quite hot in the summer.

In your case, you have a smaller room and the calculations are hence less exact here. 8,000 BTU unit will have a 33% surplus cooling capacity if provides 6,000 BTU sufficient cooling. It’s right there on the limit. My bedroom measures 155 sqft, 8ft ceiling, it is South Westerly facing, so it has sun from around 10:00 until it sets and a large window measuring 6 ft x 4 ft.