How to Properly Size a Window Air Conditioner
Choosing the right sized air conditioner can be as easy as using a tape measure and a little mathematics. Simply measure the length and width of a room and figure the square footage. Let's say it is a 10 foot by foot room. Multiply the two together to get square foot room. Many use the rule-of-thumb that 1 ton (12, BTU/h) is sufficient to cool sf of space. What this fails to take into account is that some rooms that have 12' ceilings rather than 8' ceilings will require more cooling. Couple that with the fact.
The cooling capacity of air conditioners is measured in BTUs, or British thermal units. The more Btu of capacity, the larger the room the air conditioner can cool.
Scientifically, one Btu is the amount of energy required to change the temperature of 1 pound of water by 1 degree Fahrenheit. In terms of air-conditioner capacity, the rule of thumb is that it takes around how to apply bronzer properly Btu to cool 1 square foot of room floor area. The most common window air conditioning units come in cooling capacities ranging from 5, to 12, Btu. A 12, Btu air conditioner can cool between and square feet of floor space.
A 12, Btu unit could cool a room 25 feet long by 20 feet wide that has square feet of floor area. Manufacturers give their own ratings as to how much room area they believe their units can cool.
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The following tables are estimates based on average room conditions in a moderate climate. Exceptions are Kitchens – add 4, BTU cooling capacity to the recommended size. High Ceilings/Unusual Floor Plans – increase BTU by 10%. Warmer Climates – may require % additional BTUs per room over regular amount.. BTU size too large. If you want to properly cool down a square foot area (or room), you need a 6, 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, BTU . Jan 29, · If you are looking for an air conditioner for a room measuring say 10’ x 15’ ( square feet), the recommended BTU range is up to If your room is 10’x 20’ ( square feet), you’d need to look at a 6, BTU unit. Once you get into and square feet per room, you’d need an 8, or 9, BTU air conditioner, respectively.
Not sure which portable , window or central air conditioner is right for your home or specific needs? We are here to help. Step one is simply figure out the room size in square feet of the room you would like to keep cool. Next, figure out the amount of heat or "heat load" that the room receives.
For example, if the room has a lot of windows or is next to a kitchen, that room would probably have a high heat load. Based on those two parameters, you should be able to figure out what kind of BTU range works for you. Simply click on one of the four "BTU areas" and it will lead you to a page with portable air conditioner models that will suit your room size and heat load needs. Use the dropdowns below to help you estimate what size air conditioner is best for your space.
Use the drop-down menu below to calculate the total BTU cooling power that you will need to efficiently cool down your specific needs. Area you want to cool in square feet: to to to to to to to to How many people are usually in the room?
Is the room in a very sunny region of the house? Yes No. No worries. Kara Zorn is a wife and working mom who loves life hacks that help her schedule allow for as much quality family time as possible.
She enjoys cooking with locally sourced food and produce and recently took up brewing Kombucha. Thank you. This information was actually pretty insightful. I live alone in a somewhat big house and there are many times I simply want to cool one or two rooms, especially my bedroom.
Can they hold this summer, to give me time for the building of another room? I really appreciate your response. I recently purchased a 14, BTU but discovered that it would turn off each time my refrigerator turned on, so I had to return it.
Please advise, and thanks! Having a smaller btu ac probably would help if it is still large enough to cool your space. The circuit which you have both of them plugged into is likely too small to handle the load of both at the same time. There may be a switch that shuts off the ac if the current draw is too large. You might be able to solve this by just plugging one of those appliances into a different circuit or just leaving the ac off until the fridge stops running.
All portable air conditioners that I have researched use sq. I plan to use the unit to augment the central air in my bedroom which has a high cathedral ceiling. We determined we had a gradient of temperatures at different heights but was pretty even from around 10 ft to the floor. Hi Gang, I am looking for a window airconditioner for my apartment. There are 2 bedrooms a kitchen and a combination living and dining room. Total squre footage is approximately Does anyone know how large a unit I would need?
Thanks a bunch. I just built an ad on room to my house square feet is what kind of unit do I need to the walls are 10 feet tall with a metal roof.
Hello there, can any one help me. I have an airconditioner, but dont know what the BTU is on it. I dont know it it is sq. Just want to know the BTU. It also says W. From what I can find but math is not my thing. The horsepower hours unit number 0. Is it ok?
I have a 9 by 15 room which comes to square feet would a BTU air conditioner be too much? I would have rather have too much than too little.
What would you recommend as a replacement roof AC on a Spartan park model. My fruits cold room is Thanks a lot … It helped me a lot to understand BTU range.. And the BTU calculator was a bonus. I live in an apartment with my husband. Two bedrooms and bathrooms upstairs, kitchen and living room downstairs.
I just want one ac unit to cool off the entire apartment. If you use it as-is up north, 3 days of 95F will tax it, but is temporary. Is this good enough for a room size 12ft by 10ft? The manual does not give capacity of the air conditioner. The comment above for North and South is very correct. After sweating through months of 95 degree days I had enough. We had a metal roof installed that helped, but the whole home is full sun. Yes min. I would go up a size atleast depending on your area.
Another example my daughter had a BTU Ac in her sq foot room. It only just cooled it enough to sleep at night. In the daytime it was useless. I often wondered how she could even sleep half her teenage day in there. We also upgraded it this summer. We moved the BTU to our room which is about sq ft I think it will be too big, but I shall see.
Hopefully come 3 p. Thank you!!! Thanks for the information. I have. They both have energy efficiency settings and I can run the larger one to cool whole home only if I cooking or using the oven I might have to turn both on during the day. But at night use the one in bedroom. Hi Amber, Thanks for the question! Hope this helps! Im looking to buy portable floor ac. I live in sq ft home. The kitchen livingroom combined. I wanna see how big of ac i should get btu. Your email address will not be published.
Save my name, email, and website in this browser for the next time I comment. Toggle navigation Learn Call Call Kara Zorn on May 13, 54 Comments.
Cooling Capacity Calculator. Calculate what size air conditioner you need this summer Area you want to cool in square feet: to to to to to to to to How many people are usually in the room? Yes No Is the room heavily shaded? Yes No Is the unit in a kitchen? About Our Team Kara Zorn is a wife and working mom who loves life hacks that help her schedule allow for as much quality family time as possible.
Comments Thank you. Calculators work better for me! I was just looking at your window units and scratching my head to what siZe I needed. This is exactly what I needed. Thanks Love from India.
How many but for a 3 bedroom ranch to cool down the whole house? And if the units to choose from are not exact, go with the bigger one for the reason above. Hi Kim! Leave a Reply Cancel reply Your email address will not be published.