Air condition how many btu

Air Conditioner size too small: A conditioner that has a smaller BTU rating than the room requires will run continuously. The unit will not cool the room adequately. NorthCool home air conditioner systems are normally 9, — 24, Btu's. This BTU rating provides sifficient cooling capacity for any home, condo or loft. If you have any questions please contact NorthCool's distributor near you. Find a HVAC dealer near you. Air Conditioner Sizing Tutorial. This can make you feel humid and sticky.

Furthermore, because the aircon is too powerful, it will have to stop its cooling cycle very frequently, and start again. This extra cycles creates extra load on the compressor and this causes your aircon lifespan to be reduced. Not every room and every house are created equal — some are on different floors, get different amount of sun exposure etc and all of this also has some impact on the optimal BTU.

So in this section we will outline the other factors that you should consider when choosing BTU, and how to adjust your optimal BTU accordingly. Typically, the top floor of the house will receive more heat and its share of sunlight. This is logical because the top floor directly borders the roof, which absorbs and transmits heat from direct sunlight.

Meanwhile, the floors below would be insulated from that direct sunlight by the top floor. Again, the rooms in a house sometimes face the sun directly or are in the shade most of the time.

This again will affect the amount of humidity that the room accumulates and thus has to be removed. As people, we all generate body heat. This is why it is so hot in a packed concert.

If you typically have a lot of people in a room, e. Will a btu unit use more power then a btu unit even though my btu unit rates volts. What a great article. You have provided such useful and important information. Thank you. I now know what type of air conditioner I need and will that work appropriately and efficiently. You have done a good job. I like your throughness. I share an upstairs apt with a roommate and his bedroom is very small, but he insists on using his 10, BTU portable ac.

Your email address will not be published.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 1, 31 Comments. 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 How big of an air conditioner would I need to cool a house with 5 bedrooms a kitchen and dining room and how can you tell if its a or a unit.

Perhaps everyone but me understands what the implied unit of time is. Hello Shel, thank you for all the specs. To get a bit of information, you can check how much 4 ton central AC units cost here. I have a complicated air conditioning situation. I live in southwest Missouri, with a hot, humid climate in the summer.

The house, which I grew up in, is a one-and-a-half-story s Craftsman-style house not true Craftsman , with central air. Like my father, I keep the door at the bottom of the stairs closed to save on utilities. The upstairs consists of two bedrooms, which are divided by a hallway, which gives onto a stairwell from the gabled landing. The bedroom doors face each other, and the two windows in the south bedroom more or less face the single window in the north one.

When my dad first put in central air in , he bought me a Carrier Siesta II, 8, BTU unit which has since literally disintegrated for my bedroom measuring about sq. When my brother came to visit in the summer, it had to do for both bedrooms and the hall. The former was a 2. Given these this range of uses—one for the whole upstairs and one for the south bedroom only—do you think I need a unit with more than 10, BTUs? Hello Julie, sounds like a lovely house.

Given that you have a problem with high humidity, a 12, BTU unit would be even better, however. Given your situation, a 12, BTU unit with the highest possible dehumidification rate would be the most optimum and adequate choice.

Hope you find this helpful. Great article! But I am still doubting myself. The ceiling and walls are insulated. The building gets sun for most of the day. No stove or oven, but there are several arcade games and pinball machines that generate some heat, though not nearly as much as an oven.

I was thinking a 24, btu single zone minisplit? Or would 18, be sufficient. Would like to keep the building at in the summer. Considering good insulation, 18, BTU should be sufficient. Thank you so much. I have my eye on that Mr Cool, but would really love the ceiling cassette. I think going for an 18k BTU unit would allow for me to go with a cassette size that would fit between trusses.

Not completely DIY, but I can at least get everything done except the lines. This is wonderful information…Thank you! My central AC unit just went out in my 1, square foot house. I am unable to afford a new unit at this time and intend to buy window units for now. My problem is, there is no way to put a window unit in the central living area. Would buying two 12, BTU units and placing them on opposite ends of the house do the same job to cool the entire area?

Thank you for your time. Hello Kris, this is an unfortunate situation. It might suffice; but the safer option would be to get three 10, units, for example. Sorry, this is truly a difficult situation. It has 4 windows in the bedroom 2 in the bathroom and has a lot of afternoon sun exposure. Should I go with 10,btu or 13,btu? Hello Lindsay, it really depends on how much cooling output your central AC.

Hello, I have a tiny sq ft room in the garage that I am trying to turn into a hair salon. Hello Morgan, you would indeed need a very small air conditioner.

You can check our article about the smallest AC units here. We built an enclosed porch at the back of our house. It has 4 windows and a glass door that face North.

We live in Dallas, Texas. Is a 12, BTU window air conditioner to large? Dallas, Texas is a very hot place as well. Given all these considerations, 40 BTU per sq ft would not be too much cooling output.

The combined square footage is about sq ft. The reasonably safe bet would be 10, BTU. You can check some of the 10, BTU window air conditioners here hope you find it helpful. Thanks much! Look forward to hearing from you soon.

If it were a normal room in an average climate, you would need about 8, BTU minimum to cool it sufficiently. Add hot Louisiane, sun exposure, and so on, and you get to as much as 14, BTU. Also it can get below 0F in winter, and I wonder about Heat Pump efficiency at those low temperatures, for Winter heating.

It should be at least 9, anything above that is great. This room faces the south, has 2 windows and is also on the 2nd floor. Attached is a master bath with 1 window and a walk in closet with another window.

Doors are mainly closed. Hello Bob, thank you. It gets very hot in the summer. In NJ What would you recommend? Hello Tova, you will need the smallest air conditioner on the market. My bedroom measures sqft, 8ft ceiling, it is South Westerly facing, so it has sun from around until it sets and a large window measuring 6 ft x 4 ft.

I am looking for a portable air conditioner, which will be vented through the wall and I have used various BTU calculators that suggest BTU. My issue is I like to do a lot of research and many of the user reviews of BTU units, which are technically more powerful than needed, include room dimensions similar to my own but complain about the AC struggling in warm to hot weather.

I am confused as the advice is not to go too large due to the larger machines inadequate dehumidification in smaller rooms. In your case, you have a smaller room and the calculations are hence less exact here. Our suggestion is this: Get the 8, BTU unit.

Best case scenario: You will have an adequately cold and dehumidified bedroom, chances for this happening are considerable. Worst case scenario: You will have an adequately cold yet humid bedroom. In either case, the lack of dehumidification, if it occurs, would be minimal. Thank you so much for taking the time to read my my rather long winded message and for your very detailed reply.

It is all too easy to focus on those more powerful conditioners as they cost very little more and tend to have additional features missing from the lower powered models such as Auto fan and remotes with inbuilt thermostats I like gadgets.

I shall start my research of the 8, BTU units and I will report back on my findings. Good Evening. I want to start by thanking you for all of the time you have taken to help so many of us as we struggle to find the right size unit to cool our homes and keep our sanity in check. Not to mention the money factor. As to my set-up. I live in upstate NY.

One ceiling fan, 2 skylights. A lot of late morning thru late afternoon sun pours on this side of the house. This side is my trouble spot. I have heavy curtains covering the sliding doors but the heat still makes its way into the room. No sun hits this side of the house. This side has no direct sun at any point due to shade trees.

The skylights appear to be standard in size but do let a lot of heat in when the sun is directly overhead. I hope to put something in place to block some of the sun from entering these skylights. Overall, the 3 season room has about 5 or 6 hours of direct sun. The square footage of the room is but grossly underestimates the required BTU to cool this room. My thought is that I need either a 14, BTU unit or an 18, unit. Given all the specs provided, what recommendation would you suggest?

Thank you in advance and my apologies for the length of this write-up. Now, you do have a bit over-average sun exposure. The 14, BTU not adequately cooling your room does make a bit of sense. You do find yourself is a bit of a struggle here but hopefully, you can resolve it. The new house will have a 4 car garage — sq ft. The garage is on the North side of the house.

There are windows in the garage doors but they face Northwest. The interior height of the garage is 12ft. I am having the builder insulate the garage during construction but they are not installing AC ducting for garage. I will be away from this home during the hot summer months however I will have vehicles in the garage during the summer months. I would like to keep the vehicles as rust free as possible and therefore am exploring AC options for the garage.

Just conditioned enough to keep humidity down in the garage. Maybe set at 80 degrees?? Should I use the larger 36,BTU unit or consider 2 smaller units? Humidity is the more serious concern here; it would be smart to start with a smaller BTU output 2 smaller units and see how they lower the relative humidity levels. Hi, I recently purchased a commercial property.

My wife wanted separate zone I decided to upgrade the upstairs to a split 2 ton separate unit suggested by the electrician. Could you please share your opinion? If we look purely at net tonnage, you should replace the downstairs 5-ton unit with a 3-ton unit. Now, expenses connected with such a change will be quite substantial. However, if you see that you have hot and damp or cold and damp air downstairs as a consequence of having a too big AC now that the upstairs is being taken care of by the 2-ton split unit, you might consider downgrading the downstairs unit.

Hope this helps at least a bit. Should I replace my ac or should continue with it. It would require 6, BTU unit max. The problem to be careful about is AC short cycling.

If that starts happening, you should replace the AC, but given that you already paid for it, it would seem sensible to just try it out if it gives you sufficient air conditioning. Save my name, email, and website in this browser for the next time I comment.

Total Area In Sq Ft :. Ceiling Height In Ft :. Sun Exposure: Choose Heavily shaded Average Very sunny. Climate: Choose Cold E. New York Average Hot E. Texas or California. Does Area Include The Kitchen?

Calculated BTU: 0. Thank you, Sue Harig Reply. So I can just put a btu minisplit would that work is a btu unit too much thank you.