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#CENTRAL AC PACKAGE UNIT INSTALL#
#CENTRAL AC PACKAGE UNIT PRO#
#CENTRAL AC PACKAGE UNIT FREE#

For example, consider a 3500 square foot home in Zone 2 with a Very Sunny rating. When you use our central AC BTU calculator and know what size air conditioning system is needed, you can discuss options that fit with your HVAC salesperson.ĭid you know? Many homes especially in warm climates have more than one central air conditioner. See all the Trane options in our Trane Central AC Reviews and Guide. The Trane XV18 is an example of a unit sized in increments of 12,000 BTUs. They are typically in increments of about 6,000 and/or 12,000 BTUs, but not always. Residential central air conditioners are produced from about 18,000 to 60,000 BTUs. ACs shouldn’t run non-stop, but that’s how the measurement is taken. Central AC SizesĪC capacity is measured in BTUs – actually BTU/hour, or the number of BTUs the unit moves in one hour of running. This AC BTU calculator is the first step in getting the right size central air conditioning system to make your home comfortable – the right temperature and perfect humidity.

Too small, so it won’t adequately cool your home on the hottest days – or you might find there are rooms on upper levels or far from the indoor system that are noticeably warmer on hot days.

They don’t remove as much humidity as a properly sized AC-think “cool and clammy.” That’s not very comfortable! Short cycles also produce a higher risk of mechanical failure.

Too large will run short cycles since it has more power than you need – cooling beyond the thermostat set point and creating temperature imbalances.

We won’t belabor the point, other than to say that a central air conditioning system must be the right size to give you the efficiency and indoor comfort you expect.

#CENTRAL AC PACKAGE UNIT INSTALL#

The risk of hiring an unqualified, cheap installer is that they will install an AC size that might or might not fit.

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Our AC size calculator will help you get it right.Īlso, if you hire a local certified AC contractor using our Free Local Quotes service, you won’t get it wrong. Here is an approximate guide for an average home in a moderate climate. Our AC size calculator will help you get it right. The Importance of Proper Sizing a Central AC Secondly, how much shade is around your home, especially on the south and west sides, which are usually hot in the summer afternoon? Use these factors to decide how much Sun Exposure your home gets. How sunny is your climate? Do you know how many days of sun you get per year? The Mean Annual Sunshine map gives you a good idea. Sun Exposure: There are two aspects to this. If your home is older and/or you feel drafty areas around doors and window, choose Poor.

Insulation: If you know that your attic insulation is as thick as it should be and your home has house wrap (Tyvek, for example), and you have newer doors and windows, choose Good. Double the square footage for two-story sections, of course.ģ. If you end up having to measure your home, measure each rectangle separately and add them up. If you don’t know its size, the information might be found in your closing documents or a blueprint or other drawing of your home. Home Size: Enter your home’s square footage. It is better to have a central AC that is slightly too large than one that is slightly too small.Ģ.

#CENTRAL AC PACKAGE UNIT PRO#

Pro Tip: If you’re on a Zone boundary, choose the warmer climate.