Things to Know Before You Add Central Air—MONEYSummer is here, which means for many of us, thoughts are turning to air conditioning. Let's face it—central air conditioning will change your life. No more sweaty nights tossing and turning because you haven’t installed the window units yet. For that matter, no more installing the window units—or bashing your knuckles carrying them up and down the basement stairs each spring and fall. If you're thinking about upgrading to central air, be prepared to spend between $6,0. Installation usually takes several days, and the new system will increase your property value by as much as 1. Twin Cities appraiser Alan Hummel.

Here's what else you need to know. Sizing it right is essential. Air conditioning is measured by the ton, which is the cooling energy released by a one- ton block of ice melting over the course of a day. You’ll pay about $2,0. An oversized system will cool the house so quickly it doesn’t effectively dehumidify the air (a major key to comfort), and if it’s too small it will run almost constantly, increasing your energy bills and prematurely wearing out the equipment. The contractor should show you a printout of a heat- load calculation for your house, which factors in such things as your home's location, cubic feet of living space, number and size of windows, and orientation to the sun. Some states incentivize efficiency.

In general, today’s systems must be 1. SEER—which stands for Seasonal Energy Efficiency Ratio and is a measure of how much cooling you get for each watt of power used—or about 4. SEER standard that was in place until 2. How To Download Video Songs Very Fastly Definition on this page. Given that your old system isn’t running at peak efficiency anymore, your cooling bills should drop by about half.

Air conditioning filters should be cleaned and replaced often. Window unit filters need replacement only once a year, but others range from once a month to once every. An air filter has three key components, known as the “filter triangle”: its capacity, the amount of airflow it allows and its efficiency (how well it can trap. Lennox provides the best in home heating and systems with top of the line HVAC systems, furnaces, air conditioners, and many other home heating & air products.

Or you can opt for even higher efficiency, all the way up to 2. SEER. A 1. 6 SEER system, for example, might add about $2,0. You don't need ducts. If you have an old central air system or forced air heat, your contractor can connect new AC equipment to the ducts that already exist inside the walls and floors of your home. Old ducts aren’t necessarily good ducts, however. If they’re leaky, you could lose 2.

Max Sherman, of the Lawrence Berkley National Laboratory. So have the ducts checked, and if necessary sealed.

That will add another $1,0. If you don’t have ducts, or the old ones are super inefficient, you have two choices: A contractor can install new ducts in the attic and or basement—and run between- floor connections through closets—for the cost of about $4,0. Or you can opt for ductless air conditioning: Unlike central air conditioning, which has one or two central blower units (usually in the attic) that push air through ducts, these systems have individual blower units that usually get installed on the house’s perimeter walls. You need one unit for each conditioned space, and therefore you have multiple zones throughout your house that can be more efficient than the all- or- nothing approach you get with central air conditioning. Not everyone likes the look of the blower units hanging on the walls, however, and ductless equipment will cost about 3.

But you do need a filter. Do not install central air conditioning without adding a high- efficiency filter to the system. By cleaning the air as it moves through the system, it will reduce pollen and dust in the air inside your house—and it will help keep the inner workings of your AC equipment clean and efficient. A system with a “media filter” with a MERV (minimum efficiency reporting value) rating of 1. Wes Davis, of the Air Conditioning Contractors of America, a trade organization.

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To save the most money, wait till winter to buy. Like shopping for a flat- screen TV the week after the Super Bowl or a 2. In the winter, contractors are trying to find enough work to keep their crews busy, he says, so they typically knock 1. Farther north, fall and spring offer similar off- season pricing and milder weather for doing the installation.

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