An experienced H VAC contractor should be able to size and specify the equipment best suited to your home, factoring the age, quality of windows, insulation, number of floors, square and cubic feet of living space, and local factors such as climate, humidity, local energy costs and average number of days the system will be needed to operate annually.
If your system is too small it will work too hard and if it’s too large, it may cycle on and off too frequently, reducing efficiency and the ability to reduce humidity inside the home.
It takes years of experience to know how to properly size and specify a central air conditioning system so leave it to a pro. Consult several reputable H VAC contractors to compare their specifications, opinions and recommendations before you make a final decision.
Deciding how much efficiency you need is a matter of personal economics, comfort level and environmental concerns. You may or may not save enough on a SEER 15 or higher system to offset the higher installation costs versus the lower ongoing costs of operating a system with a lower SEER.
With rising energy costs, the economics are shifting, so that the additional $200 or $300 it costs to increase your system from one SEER to the next might easily pay off over the service life of the system, especially if you live in a very hot climate where air conditioning is needed frequently!
The other important factor to consider is the warranty terms; paying more up front could save you money down the road. Proper installation may be more important to getting the maximum service life than the system components, so be sure your H VAC contractor is trained and certified by the manufacturer whose equipment is being installed. Also consider purchasing an extended warranty or maintenance contract on your central air conditioning system.
This is what people most commonly think of when they speak of wanting air conditioning. Split central air allows you to place the noisy portion or your cooling unit outside where it will be less noticeable. Split central air requires that your house have ducting to the various rooms in your home (usually the same ducting you use for your central heat). Best Central Air Conditioners allows you to cool all parts of a house evenly and quietly.
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