SHOW ME CENTRAL AC PRICES. Choosing a Central AC or Window Unit Probably Isn’t Up to You. Of course this is a free country.do what you want. But what I mean is that a standard split central air conditioner takes up between 10 and 15 feet of space in your attic or crawl space, has refrigerant lines, high and low voltage electrical components, and drainage lines all running out from it.Lennox air conditioners are amongst the quietest and most energy efficient units on the market. Delivering perfectly precise comfort control, lennox air conditioners continually make small adjustments in fan speed and cooling output to hold your temperature exactly where you want it.A central air conditioner system is quite a major investment whether for the home or the workplace, so it’s vital that you choose a system that not only delivers value for money, but also meets your needs. Picking the best central air conditioner from the range of products available is not an easy task if you don’t know what to look for.If you’re looking to keep your home cool, you’ve come to the right place. The best central air conditioners will cool down your entire house – unlike portable air conditioning units or wall air conditioners, which can only cool down a single room.. They’re more expensive to install, but they’re also quieter, more energy-efficient to run than multiple window or portable units, and.Stay Cool With Air Conditioners and Fans From Lowe’s. When the temperature starts climbing, Lowe’s has everything you need to handle the heat. Chill out with our wide selection of ceiling fans, small room air conditioners, portable air conditioners, wall air conditioners, window air conditioners and more.A central air conditioner is like a giant refrigerator for your house. In fact, it employs the same types of components, materials, and systems as a refrigerator, including a refrigerant that changes from liquid to gas and back to liquid as it travels through a system of tubes and coils or fins that collect and give off heat.Ask your Carrier expert about the 2015 energy-efficiency standards to ensure your new central air conditioner meets government regulations for your area.The most and least reliable central air conditioning systems, according to a survey from Consumer Reports of nearly 22,000 members.