Nov 12, 2018· Manufacturers produce whole-house central air conditioners in a range of sizes, which raises one of the most important questions you'll have to answer when shopping for one: How big should it be? With air conditioners, the term "size" has nothing to do with a unit's physical dimensions but, rather, its ability to produce cooled air.
Sizing Calculator. The following technique can provide you with an approximate size estimate for your new furnace or central air conditioner. Although you may reasonably use this estimate as a first pass when browsing through furnace or air conditioner models, you (or your HVAC contractor) should complete a thorough load calculation before you make your purchase.
Oct 06, 2016· To estimate the amount of air conditioning you will need for your daytime living area, you will first need to find out its area. You will need to find the length and width of each room and multiply them. Then, you have to add the area of each room together for the total. This figure needs to be in square metres.
For instance, if the room is a rectangular 10 feet by 20 feet, the area would be 200 square feet. If the room is a perfectly-square 20 feet by 20 feet, the total area would be 400 square feet. Don't worry about factoring height into this equation – it'll be a separate measurement on our air conditioner BTU calculator.
Oct 25, 2014· The central air conditioners that are installed in your home range from 1.5-ton to 5-ton units and increase in half-ton increments (2-ton, 2.5-ton, 3-ton, etc…). Anything over 5-tons is generally considered a light commercial HVAC unit (not available for residential projects).
Mar 15, 2015· Buying an air conditioner is an important purchase, and it is worth your time to make sure you do it right. This table provided by Energy Star can be used to get a VERY ROUGH ESTIMATE of how many BTUs you need to cool a given area.
Back in the days of cheap electricity, accurately sizing residential central air conditioners wasn't a high priority. Builders simply covered for any shortfalls by installing an AC unit .
Jun 24, 2019· Residential central air conditioners come in a range of sizes from 1.5 ton to 5 ton models. If you need a unit that has more than 5 ton cooling capacity, then it is likely you will need multiple AC units.
DIY AC Size Calculator. Instead of subtracting 0.5, you will need to ADD it. So the new formula looks like this: ( (2,350 x 25) / 12,000) + 0.5) = 5.39 This means that your house requires a central air conditioning unit of 5 to 5.5 tons.