Home Guides Home Home Improvement Sustainability How to Figure What Size of Air Conditioning Unit Is Needed for a Sunroom Email Reddit Sunrooms should be bright, not hot. While a sunroom brings a lot of sunlight into your house, it also can affect the comfort of your living space. Exposure to excessive heat decreases the efficiency of your home air conditioning system. Installing a room air conditioning unit in the sunroom supplements the work of your whole house system, and provides a more comfortable space. Proper sizing is key to purchasing the best unit for your needs. Measure the length and width of the sunroom using a tape measure. For larger rooms, a laser measuring tool provides accurate measurements without the help of a second person. Multiply the length and width to establish the square footage of the sunroom. For example, a room 25-feet long by 10-feet wide occupies 250 square feet of space. Multiply the square footage of the room by 20 to establish the correct BTU rating for your sunroom.

An average air conditioning unit requires 20 BTU for each square foot of living space to cool efficiently. Using the previous example, a 250-square-foot room requires a unit capable of 5,000 BTU. Things You Will Need Measuring tape Laser measuring tool (optional) Calculator Tip Warning References U.S. Department of Energy: Room Air Conditioners Photo Credits Jupiterimages/Comstock/Getty Images Suggest a Correction What Is the Disadvantage of Being Without a ... Being without a mortgage contingency has a number of ... Questions to Ask Prospective Mortgage Lenders One question to ask prospective mortgage lenders is ... Can I Pre-Qualify for a Mortgage Loan Over ... You can definitely pre-qualify for a mortgage loan ... What Is Occupancy Status on a Mortgage? Occupancy status on a mortgage simply refers to ... How many Btus is recommended for a room about 35 square meters? I have 2 units with 13,000 Btus each. I'm thinking it should be enough, but the room is just so-so cool. I can never say it's COLD in the room.

This one is for a single room. Assume the room direction is for the northern hemisphere. Reverse North and South if you're in the south. From the comment by mike: Consumer Reports groups single-room A/Cs roughly into small/medium/large categories (100 to 300 square feet, 250 to 400 square feet, 350 to 650 square feet), and from what I've seen the BTU ratings and room sizes on A/C boxes in stores seem to follow the same general formula (probably they're all referencing the Energy Star calculations). Yes, one can quibble about floor space versus room surface area, but using the former as proxy for the latter seems to work well enough for most of the rooms in most of our houses. However they note that Energy Star suggests you make some adjustments: If more than two people regularly occupy the room, add 600 BTUs for each additional person. (A human puts out roughly 100W of heat.) Another factor: Energy efficiency. EER is the energy efficiency rating while under continuous operation;

CEER is the rating with "energy saver" engaged (and automatic fan speed control, if the unit supports that). Energy saver modes try to turn the compressor and/or fan off when the target temperature has been hit, and turn the A/C back on only when the room has drifted a few degrees away from that temperature. buy ac heating unitThe fluctuation is noticable and some find it annoying... but it does significantly reduce operating cost.buy central ac unit online I went up a size on the unit I just purchased because the smaller one (a) was right on the edge of being able to handle the room size I needed without allowing for solar heating, and (b) had a CEER about 10% lower. best ac unit portableGoing up that step did increase the price from $120 to $180, but it was well within my budget either way.

The biggest advantage of the small one would have been that it would fit in the narrow dormer window rather than the standard-width end-wall window. (Now I need to decide whether it's time to replace the big one that covers most of the entertaining area. I try not to run that unless I must, so maybe I'll stick with the older and less-efficient for another year or two. Unless it makes the decision easy by dying.) For what it's worth, GE's base recommendation (from the packaging) is: 150 sq ft: 5000 BTUWhat Size Central Air Conditioning Unit Is Needed? For homeowners, the development of air conditioning was a signal event, making it far more comfortable to live in hot weather. An air conditioning system takes hot air, cools it down and then disperses it throughout a home. When installing a home central air conditioning system, though, it's important that it be the proper size. Factors taken into account during installation include the age and size of the home, and the regional climate.

A home's size is important when selecting its central air conditioning system. Additionally, consider the number of windows in the home and the direction it faces before installation. The amount of shade falling on a home's walls, windows and roof also should be considered. Lastly, the amount of insulation in a home helps to determine what size central air conditioning system is needed. Air conditioner sizes are classified by the British Thermal Unit (BTU) and by the ton. A BTU is the amount of energy needed to raise the temperature of one pound of water by one degree Fahrenheit in an hour. There are 12,000 BTUs in a ton, which is the amount of energy needed to melt one ton of ice in one hour. Typical home central air conditioning system sizes run from 3 to 6 tons, or 36,000 to 72,000 BTUs. There are five climate zones in the United States, with Zone 1 being the warmest and Zone 5 the coolest. The warmer the regional climate zone, the larger a central air conditioning system must be.

For example, a 2,100 to 2,400 square foot house in Zone 1 requires a 4 ton (48,000 BTU) central air conditioning system, compared to a 3.5 ton (42,000 BTUs) unit for a 2,100 to 2,400 square foot home in Zone 5. Always properly size the central air conditioning system going into your home. Central air conditioning systems that are too large for the space they're meant to cool will cycle on and off too frequently, which is called short cycling. Air conditioning systems that always are short cycling won't run long enough to dehumidify their spaces. In addition, central air conditioning systems that are too large or too small increase operating costs and reduce system life. Air Conditioning Helper: Learn More About Air Conditioner Ratings AC4Life: System Sizing Help Hurliman Heating & Air Conditioning, Inc.: Central Cooling Systems Sizing your air conditioner is an important step for any home owner. If you purchase a unit that is too large, it... Basic Air Conditioning Square Foot ...

What Size of a Wall Air Conditioning Unit Will Cool 1200 Square Feet? What Size Central Air Conditioning Unit Is Needed? Comments You May Also Like. How to Size Air Conditioning to a Mobile Home.... The Best SEER Air Conditioner for a 1,600-Square-Foot House. What Size Air Conditioner Do I Need for a 1,650 Sq. Ft....800 to 2,000 square feet can cost anywhere between $2,100 ... air conditioning unit for a home can ... Air Conditioner BTU Size Recommendations. Air conditioners with 6,000 British Thermal Units (Btu) of power will cool a 150- to 250-square... You need to make sure that you get the right size air conditioner for the size of your house, ... Calculating the proper size for a central AC unit requires determining how much energy is required to pull heat out of the... Sizing an central air conditioning unit for a 2,000 square-foot structure requires more than just the basic measurements of ... How to Make Central Air Conditioning More Efficient What Ton Air Conditioner Do I Need?